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Chore: Add headers to all the files (#54)

Browse Source 
## Description
- Add headers to all the CSV files

## Script used
```py
import csv
import os

# Set the path of the folder containing the CSV files
folder_path = "./LeetCode-Questions-CompanyWise"
headers = [
    "ID",
    "Title",
    "Acceptance",
    "Difficulty",
    "Frequency",
    "Leetcode Question Link",
]

# Loop through all the CSV files in the folder
for file_name in os.listdir(folder_path):
    if file_name.endswith(".csv"):
        # Read the CSV file into a list of rows
        file_path = os.path.join(folder_path, file_name)
        with open(file_path, "r") as f:
            reader = csv.reader(f)
            rows = list(reader)

        has_headers = False
        if len(rows) > 0 and rows[0] == headers:
            has_headers = True

        if not has_headers:
            rows.insert(0, headers)

            # Write the list of rows back to the CSV file
            with open(file_path, "w", newline="") as f:
                writer = csv.writer(f)
                writer.writerows(rows)

```
This commit is contained in:
Krishna Kumar Dey
2023-04-01 11:07:49 +05:30
committed by GitHub
parent 0aeadbd612
commit fb5f78b55e
534 changed files with 20291 additions and 19757 deletions
Download Patch File Download Diff File Expand all files Collapse all files

177
ebay_1year.csv
View File

@@ -1,88 +1,89 @@
545,Boundary of Binary Tree,38.9%,Medium,0.15000822156709664, https://leetcode.com/problems/boundary-of-binary-tree
968,Binary Tree Cameras,37.5%,Hard,0.12586422089000404, https://leetcode.com/problems/binary-tree-cameras
146,LRU Cache,33.2%,Medium,0.1090999130829226, https://leetcode.com/problems/lru-cache
498,Diagonal Traverse,48.2%,Medium,0.10598924878133596, https://leetcode.com/problems/diagonal-traverse
962,Maximum Width Ramp,45.4%,Medium,0.08184524810424337, https://leetcode.com/problems/maximum-width-ramp
250,Count Univalue Subtrees,52.0%,Medium,0.07975881838845024, https://leetcode.com/problems/count-univalue-subtrees
244,Shortest Word Distance II,52.3%,Medium,0.07622736538788424, https://leetcode.com/problems/shortest-word-distance-ii
253,Meeting Rooms II,45.7%,Medium,0.07046545668000562, https://leetcode.com/problems/meeting-rooms-ii
846,Hand of Straights,54.2%,Medium,0.06472423940349638, https://leetcode.com/problems/hand-of-straights
366,Find Leaves of Binary Tree,70.6%,Medium,0.05526267867504946, https://leetcode.com/problems/find-leaves-of-binary-tree
143,Reorder List,37.1%,Medium,0.04554002588608351, https://leetcode.com/problems/reorder-list
341,Flatten Nested List Iterator,52.9%,Medium,0.04440788848944038, https://leetcode.com/problems/flatten-nested-list-iterator
1146,Snapshot Array,37.0%,Medium,0.0317991816929387, https://leetcode.com/problems/snapshot-array
284,Peeking Iterator,45.7%,Medium,0.03110670713225487, https://leetcode.com/problems/peeking-iterator
227,Basic Calculator II,36.9%,Medium,0.027685557859864054, https://leetcode.com/problems/basic-calculator-ii
1438,Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit,42.1%,Medium,0.026955809988528263, https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit
130,Surrounded Regions,28.1%,Medium,0.02672368055211276, https://leetcode.com/problems/surrounded-regions
951,Flip Equivalent Binary Trees,65.8%,Medium,0.025269822188076344, https://leetcode.com/problems/flip-equivalent-binary-trees
40,Combination Sum II,48.2%,Medium,0.021424290044083395, https://leetcode.com/problems/combination-sum-ii
698,Partition to K Equal Sum Subsets,45.0%,Medium,0.02109782896463587, https://leetcode.com/problems/partition-to-k-equal-sum-subsets
1122,Relative Sort Array,67.7%,Easy,0.019685675071030327, https://leetcode.com/problems/relative-sort-array
787,Cheapest Flights Within K Stops,39.3%,Medium,0.018824085245635554, https://leetcode.com/problems/cheapest-flights-within-k-stops
394,Decode String,50.0%,Medium,0.0182820448374491, https://leetcode.com/problems/decode-string
283,Move Zeroes,57.8%,Easy,0.01789853050377608, https://leetcode.com/problems/move-zeroes
560,Subarray Sum Equals K,43.9%,Medium,0.017009020666013328, https://leetcode.com/problems/subarray-sum-equals-k
240,Search a 2D Matrix II,43.2%,Medium,0.0169815401480941, https://leetcode.com/problems/search-a-2d-matrix-ii
658,Find K Closest Elements,40.9%,Medium,0.016611677666896175, https://leetcode.com/problems/find-k-closest-elements
51,N-Queens,46.6%,Hard,0.016393809775676407, https://leetcode.com/problems/n-queens
297,Serialize and Deserialize Binary Tree,47.5%,Hard,0.01585377577217724, https://leetcode.com/problems/serialize-and-deserialize-binary-tree
215,Kth Largest Element in an Array,55.4%,Medium,0.015519225147600912, https://leetcode.com/problems/kth-largest-element-in-an-array
977,Squares of a Sorted Array,72.1%,Easy,0.015474196582597383, https://leetcode.com/problems/squares-of-a-sorted-array
153,Find Minimum in Rotated Sorted Array,45.1%,Medium,0.014939586916186732, https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
443,String Compression,41.3%,Easy,0.01390843004613198, https://leetcode.com/problems/string-compression
703,Kth Largest Element in a Stream,49.7%,Easy,0.013898764390814973, https://leetcode.com/problems/kth-largest-element-in-a-stream
138,Copy List with Random Pointer,36.4%,Medium,0.013876263355766411, https://leetcode.com/problems/copy-list-with-random-pointer
767,Reorganize String,48.7%,Medium,0.01329806830463147, https://leetcode.com/problems/reorganize-string
665,Non-decreasing Array,19.5%,Easy,0.013016779950191773, https://leetcode.com/problems/non-decreasing-array
33,Search in Rotated Sorted Array,34.5%,Medium,0.012857779194289386, https://leetcode.com/problems/search-in-rotated-sorted-array
129,Sum Root to Leaf Numbers,49.1%,Medium,0.012739025777429757, https://leetcode.com/problems/sum-root-to-leaf-numbers
213,House Robber II,36.5%,Medium,0.012654392210497564, https://leetcode.com/problems/house-robber-ii
287,Find the Duplicate Number,55.5%,Medium,0.012335682739188652, https://leetcode.com/problems/find-the-duplicate-number
445,Add Two Numbers II,54.5%,Medium,0.01233061245747872, https://leetcode.com/problems/add-two-numbers-ii
547,Friend Circles,58.6%,Medium,0.012228828639434596, https://leetcode.com/problems/friend-circles
300,Longest Increasing Subsequence,42.6%,Medium,0.011806512586989004, https://leetcode.com/problems/longest-increasing-subsequence
200,Number of Islands,46.8%,Medium,0.011509262420590827, https://leetcode.com/problems/number-of-islands
785,Is Graph Bipartite?,47.5%,Medium,0.011236073266925854, https://leetcode.com/problems/is-graph-bipartite
160,Intersection of Two Linked Lists,40.6%,Easy,0.010994491398666248, https://leetcode.com/problems/intersection-of-two-linked-lists
662,Maximum Width of Binary Tree,41.0%,Medium,0.010790501245113902, https://leetcode.com/problems/maximum-width-of-binary-tree
211,Add and Search Word - Data structure design,38.1%,Medium,0.010438508143923443, https://leetcode.com/problems/add-and-search-word-data-structure-design
1,Two Sum,45.6%,Easy,0.010006414028595919, https://leetcode.com/problems/two-sum
17,Letter Combinations of a Phone Number,46.8%,Medium,0.00987716546167603, https://leetcode.com/problems/letter-combinations-of-a-phone-number
3,Longest Substring Without Repeating Characters,30.4%,Medium,0.009683242444739549, https://leetcode.com/problems/longest-substring-without-repeating-characters
46,Permutations,63.5%,Medium,0.009461803137288448, https://leetcode.com/problems/permutations
206,Reverse Linked List,62.5%,Easy,0.009326794511974934, https://leetcode.com/problems/reverse-linked-list
23,Merge k Sorted Lists,40.2%,Hard,0.009092808657599025, https://leetcode.com/problems/merge-k-sorted-lists
5,Longest Palindromic Substring,29.5%,Medium,0.009086325220960808, https://leetcode.com/problems/longest-palindromic-substring
173,Binary Search Tree Iterator,56.6%,Medium,0.008489015324911316, https://leetcode.com/problems/binary-search-tree-iterator
102,Binary Tree Level Order Traversal,54.6%,Medium,0.008169238497129479, https://leetcode.com/problems/binary-tree-level-order-traversal
141,Linked List Cycle,41.1%,Easy,0.007843861028908454, https://leetcode.com/problems/linked-list-cycle
56,Merge Intervals,39.3%,Medium,0.007796972706004796, https://leetcode.com/problems/merge-intervals
994,Rotting Oranges,49.2%,Medium,0.007630712341163886, https://leetcode.com/problems/rotting-oranges
176,Second Highest Salary,31.6%,Easy,0.007393749024938284, https://leetcode.com/problems/second-highest-salary
10,Regular Expression Matching,26.8%,Hard,0.0071865203293987245, https://leetcode.com/problems/regular-expression-matching
41,First Missing Positive,32.0%,Hard,0.0064113058208121855, https://leetcode.com/problems/first-missing-positive
83,Remove Duplicates from Sorted List,45.4%,Easy,0.006353261522609498, https://leetcode.com/problems/remove-duplicates-from-sorted-list
202,Happy Number,50.4%,Easy,0.006266666286010046, https://leetcode.com/problems/happy-number
76,Minimum Window Substring,34.6%,Hard,0.006231520398723243, https://leetcode.com/problems/minimum-window-substring
31,Next Permutation,32.6%,Medium,0.005989835219179644, https://leetcode.com/problems/next-permutation
39,Combination Sum,56.1%,Medium,0.005715934396440999, https://leetcode.com/problems/combination-sum
199,Binary Tree Right Side View,54.1%,Medium,0.0056826406650506926, https://leetcode.com/problems/binary-tree-right-side-view
20,Valid Parentheses,39.0%,Easy,0.005168860577665306, https://leetcode.com/problems/valid-parentheses
15,3Sum,26.8%,Medium,0.004940992758742591, https://leetcode.com/problems/3sum
236,Lowest Common Ancestor of a Binary Tree,45.7%,Medium,0.004714210262726446, https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
42,Trapping Rain Water,48.9%,Hard,0.004350670338744988, https://leetcode.com/problems/trapping-rain-water
322,Coin Change,35.5%,Medium,0.004029826126500844, https://leetcode.com/problems/coin-change
189,Rotate Array,34.7%,Easy,0.004029826126500844, https://leetcode.com/problems/rotate-array
125,Valid Palindrome,36.7%,Easy,0.0039805008274065926, https://leetcode.com/problems/valid-palindrome
238,Product of Array Except Self,60.1%,Medium,0.003930436424724545, https://leetcode.com/problems/product-of-array-except-self
139,Word Break,40.1%,Medium,0.003894465052690167, https://leetcode.com/problems/word-break
103,Binary Tree Zigzag Level Order Traversal,48.3%,Medium,0.003839922800048048, https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
8,String to Integer (atoi),15.4%,Medium,0.0037925521897059712, https://leetcode.com/problems/string-to-integer-atoi
198,House Robber,42.0%,Easy,0.0037576371128333645, https://leetcode.com/problems/house-robber
347,Top K Frequent Elements,61.2%,Medium,0.0033396446491217604, https://leetcode.com/problems/top-k-frequent-elements
14,Longest Common Prefix,35.4%,Easy,0.003320331762984143, https://leetcode.com/problems/longest-common-prefix
66,Plus One,43.0%,Easy,0.00326211347832938, https://leetcode.com/problems/plus-one
98,Validate Binary Search Tree,27.8%,Medium,0.002943776044013381, https://leetcode.com/problems/validate-binary-search-tree
21,Merge Two Sorted Lists,53.5%,Easy,0.0022551737583973706, https://leetcode.com/problems/merge-two-sorted-lists
50,Pow(x;n),30.3%,Medium,0.0014016892647828818, https://leetcode.com/problems/powx-n
ID,Title,Acceptance,Difficulty,Frequency,Leetcode Question Link
545,Boundary of Binary Tree,38.9%,Medium,0.15000822156709664, https://leetcode.com/problems/boundary-of-binary-tree
968,Binary Tree Cameras,37.5%,Hard,0.12586422089000404, https://leetcode.com/problems/binary-tree-cameras
146,LRU Cache,33.2%,Medium,0.1090999130829226, https://leetcode.com/problems/lru-cache
498,Diagonal Traverse,48.2%,Medium,0.10598924878133596, https://leetcode.com/problems/diagonal-traverse
962,Maximum Width Ramp,45.4%,Medium,0.08184524810424337, https://leetcode.com/problems/maximum-width-ramp
250,Count Univalue Subtrees,52.0%,Medium,0.07975881838845024, https://leetcode.com/problems/count-univalue-subtrees
244,Shortest Word Distance II,52.3%,Medium,0.07622736538788424, https://leetcode.com/problems/shortest-word-distance-ii
253,Meeting Rooms II,45.7%,Medium,0.07046545668000562, https://leetcode.com/problems/meeting-rooms-ii
846,Hand of Straights,54.2%,Medium,0.06472423940349638, https://leetcode.com/problems/hand-of-straights
366,Find Leaves of Binary Tree,70.6%,Medium,0.05526267867504946, https://leetcode.com/problems/find-leaves-of-binary-tree
143,Reorder List,37.1%,Medium,0.04554002588608351, https://leetcode.com/problems/reorder-list
341,Flatten Nested List Iterator,52.9%,Medium,0.04440788848944038, https://leetcode.com/problems/flatten-nested-list-iterator
1146,Snapshot Array,37.0%,Medium,0.0317991816929387, https://leetcode.com/problems/snapshot-array
284,Peeking Iterator,45.7%,Medium,0.03110670713225487, https://leetcode.com/problems/peeking-iterator
227,Basic Calculator II,36.9%,Medium,0.027685557859864054, https://leetcode.com/problems/basic-calculator-ii
1438,Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit,42.1%,Medium,0.026955809988528263, https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit
130,Surrounded Regions,28.1%,Medium,0.02672368055211276, https://leetcode.com/problems/surrounded-regions
951,Flip Equivalent Binary Trees,65.8%,Medium,0.025269822188076344, https://leetcode.com/problems/flip-equivalent-binary-trees
40,Combination Sum II,48.2%,Medium,0.021424290044083395, https://leetcode.com/problems/combination-sum-ii
698,Partition to K Equal Sum Subsets,45.0%,Medium,0.02109782896463587, https://leetcode.com/problems/partition-to-k-equal-sum-subsets
1122,Relative Sort Array,67.7%,Easy,0.019685675071030327, https://leetcode.com/problems/relative-sort-array
787,Cheapest Flights Within K Stops,39.3%,Medium,0.018824085245635554, https://leetcode.com/problems/cheapest-flights-within-k-stops
394,Decode String,50.0%,Medium,0.0182820448374491, https://leetcode.com/problems/decode-string
283,Move Zeroes,57.8%,Easy,0.01789853050377608, https://leetcode.com/problems/move-zeroes
560,Subarray Sum Equals K,43.9%,Medium,0.017009020666013328, https://leetcode.com/problems/subarray-sum-equals-k
240,Search a 2D Matrix II,43.2%,Medium,0.0169815401480941, https://leetcode.com/problems/search-a-2d-matrix-ii
658,Find K Closest Elements,40.9%,Medium,0.016611677666896175, https://leetcode.com/problems/find-k-closest-elements
51,N-Queens,46.6%,Hard,0.016393809775676407, https://leetcode.com/problems/n-queens
297,Serialize and Deserialize Binary Tree,47.5%,Hard,0.01585377577217724, https://leetcode.com/problems/serialize-and-deserialize-binary-tree
215,Kth Largest Element in an Array,55.4%,Medium,0.015519225147600912, https://leetcode.com/problems/kth-largest-element-in-an-array
977,Squares of a Sorted Array,72.1%,Easy,0.015474196582597383, https://leetcode.com/problems/squares-of-a-sorted-array
153,Find Minimum in Rotated Sorted Array,45.1%,Medium,0.014939586916186732, https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
443,String Compression,41.3%,Easy,0.01390843004613198, https://leetcode.com/problems/string-compression
703,Kth Largest Element in a Stream,49.7%,Easy,0.013898764390814973, https://leetcode.com/problems/kth-largest-element-in-a-stream
138,Copy List with Random Pointer,36.4%,Medium,0.013876263355766411, https://leetcode.com/problems/copy-list-with-random-pointer
767,Reorganize String,48.7%,Medium,0.01329806830463147, https://leetcode.com/problems/reorganize-string
665,Non-decreasing Array,19.5%,Easy,0.013016779950191773, https://leetcode.com/problems/non-decreasing-array
33,Search in Rotated Sorted Array,34.5%,Medium,0.012857779194289386, https://leetcode.com/problems/search-in-rotated-sorted-array
129,Sum Root to Leaf Numbers,49.1%,Medium,0.012739025777429757, https://leetcode.com/problems/sum-root-to-leaf-numbers
213,House Robber II,36.5%,Medium,0.012654392210497564, https://leetcode.com/problems/house-robber-ii
287,Find the Duplicate Number,55.5%,Medium,0.012335682739188652, https://leetcode.com/problems/find-the-duplicate-number
445,Add Two Numbers II,54.5%,Medium,0.01233061245747872, https://leetcode.com/problems/add-two-numbers-ii
547,Friend Circles,58.6%,Medium,0.012228828639434596, https://leetcode.com/problems/friend-circles
300,Longest Increasing Subsequence,42.6%,Medium,0.011806512586989004, https://leetcode.com/problems/longest-increasing-subsequence
200,Number of Islands,46.8%,Medium,0.011509262420590827, https://leetcode.com/problems/number-of-islands
785,Is Graph Bipartite?,47.5%,Medium,0.011236073266925854, https://leetcode.com/problems/is-graph-bipartite
160,Intersection of Two Linked Lists,40.6%,Easy,0.010994491398666248, https://leetcode.com/problems/intersection-of-two-linked-lists
662,Maximum Width of Binary Tree,41.0%,Medium,0.010790501245113902, https://leetcode.com/problems/maximum-width-of-binary-tree
211,Add and Search Word - Data structure design,38.1%,Medium,0.010438508143923443, https://leetcode.com/problems/add-and-search-word-data-structure-design
1,Two Sum,45.6%,Easy,0.010006414028595919, https://leetcode.com/problems/two-sum
17,Letter Combinations of a Phone Number,46.8%,Medium,0.00987716546167603, https://leetcode.com/problems/letter-combinations-of-a-phone-number
3,Longest Substring Without Repeating Characters,30.4%,Medium,0.009683242444739549, https://leetcode.com/problems/longest-substring-without-repeating-characters
46,Permutations,63.5%,Medium,0.009461803137288448, https://leetcode.com/problems/permutations
206,Reverse Linked List,62.5%,Easy,0.009326794511974934, https://leetcode.com/problems/reverse-linked-list
23,Merge k Sorted Lists,40.2%,Hard,0.009092808657599025, https://leetcode.com/problems/merge-k-sorted-lists
5,Longest Palindromic Substring,29.5%,Medium,0.009086325220960808, https://leetcode.com/problems/longest-palindromic-substring
173,Binary Search Tree Iterator,56.6%,Medium,0.008489015324911316, https://leetcode.com/problems/binary-search-tree-iterator
102,Binary Tree Level Order Traversal,54.6%,Medium,0.008169238497129479, https://leetcode.com/problems/binary-tree-level-order-traversal
141,Linked List Cycle,41.1%,Easy,0.007843861028908454, https://leetcode.com/problems/linked-list-cycle
56,Merge Intervals,39.3%,Medium,0.007796972706004796, https://leetcode.com/problems/merge-intervals
994,Rotting Oranges,49.2%,Medium,0.007630712341163886, https://leetcode.com/problems/rotting-oranges
176,Second Highest Salary,31.6%,Easy,0.007393749024938284, https://leetcode.com/problems/second-highest-salary
10,Regular Expression Matching,26.8%,Hard,0.0071865203293987245, https://leetcode.com/problems/regular-expression-matching
41,First Missing Positive,32.0%,Hard,0.0064113058208121855, https://leetcode.com/problems/first-missing-positive
83,Remove Duplicates from Sorted List,45.4%,Easy,0.006353261522609498, https://leetcode.com/problems/remove-duplicates-from-sorted-list
202,Happy Number,50.4%,Easy,0.006266666286010046, https://leetcode.com/problems/happy-number
76,Minimum Window Substring,34.6%,Hard,0.006231520398723243, https://leetcode.com/problems/minimum-window-substring
31,Next Permutation,32.6%,Medium,0.005989835219179644, https://leetcode.com/problems/next-permutation
39,Combination Sum,56.1%,Medium,0.005715934396440999, https://leetcode.com/problems/combination-sum
199,Binary Tree Right Side View,54.1%,Medium,0.0056826406650506926, https://leetcode.com/problems/binary-tree-right-side-view
20,Valid Parentheses,39.0%,Easy,0.005168860577665306, https://leetcode.com/problems/valid-parentheses
15,3Sum,26.8%,Medium,0.004940992758742591, https://leetcode.com/problems/3sum
236,Lowest Common Ancestor of a Binary Tree,45.7%,Medium,0.004714210262726446, https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
42,Trapping Rain Water,48.9%,Hard,0.004350670338744988, https://leetcode.com/problems/trapping-rain-water
322,Coin Change,35.5%,Medium,0.004029826126500844, https://leetcode.com/problems/coin-change
189,Rotate Array,34.7%,Easy,0.004029826126500844, https://leetcode.com/problems/rotate-array
125,Valid Palindrome,36.7%,Easy,0.0039805008274065926, https://leetcode.com/problems/valid-palindrome
238,Product of Array Except Self,60.1%,Medium,0.003930436424724545, https://leetcode.com/problems/product-of-array-except-self
139,Word Break,40.1%,Medium,0.003894465052690167, https://leetcode.com/problems/word-break
103,Binary Tree Zigzag Level Order Traversal,48.3%,Medium,0.003839922800048048, https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
8,String to Integer (atoi),15.4%,Medium,0.0037925521897059712, https://leetcode.com/problems/string-to-integer-atoi
198,House Robber,42.0%,Easy,0.0037576371128333645, https://leetcode.com/problems/house-robber
347,Top K Frequent Elements,61.2%,Medium,0.0033396446491217604, https://leetcode.com/problems/top-k-frequent-elements
14,Longest Common Prefix,35.4%,Easy,0.003320331762984143, https://leetcode.com/problems/longest-common-prefix
66,Plus One,43.0%,Easy,0.00326211347832938, https://leetcode.com/problems/plus-one
98,Validate Binary Search Tree,27.8%,Medium,0.002943776044013381, https://leetcode.com/problems/validate-binary-search-tree
21,Merge Two Sorted Lists,53.5%,Easy,0.0022551737583973706, https://leetcode.com/problems/merge-two-sorted-lists
50,Pow(x;n),30.3%,Medium,0.0014016892647828818, https://leetcode.com/problems/powx-n
1 545 ID Boundary of Binary Tree Title 38.9% Acceptance Medium Difficulty 0.15000822156709664 Frequency https://leetcode.com/problems/boundary-of-binary-tree Leetcode Question Link
2 968 545 Binary Tree Cameras Boundary of Binary Tree 37.5% 38.9% Hard Medium 0.12586422089000404 0.15000822156709664 https://leetcode.com/problems/binary-tree-cameras https://leetcode.com/problems/boundary-of-binary-tree
3 146 968 LRU Cache Binary Tree Cameras 33.2% 37.5% Medium Hard 0.1090999130829226 0.12586422089000404 https://leetcode.com/problems/lru-cache https://leetcode.com/problems/binary-tree-cameras
4 498 146 Diagonal Traverse LRU Cache 48.2% 33.2% Medium Medium 0.10598924878133596 0.1090999130829226 https://leetcode.com/problems/diagonal-traverse https://leetcode.com/problems/lru-cache
5 962 498 Maximum Width Ramp Diagonal Traverse 45.4% 48.2% Medium Medium 0.08184524810424337 0.10598924878133596 https://leetcode.com/problems/maximum-width-ramp https://leetcode.com/problems/diagonal-traverse
6 250 962 Count Univalue Subtrees Maximum Width Ramp 52.0% 45.4% Medium Medium 0.07975881838845024 0.08184524810424337 https://leetcode.com/problems/count-univalue-subtrees https://leetcode.com/problems/maximum-width-ramp
7 244 250 Shortest Word Distance II Count Univalue Subtrees 52.3% 52.0% Medium Medium 0.07622736538788424 0.07975881838845024 https://leetcode.com/problems/shortest-word-distance-ii https://leetcode.com/problems/count-univalue-subtrees
8 253 244 Meeting Rooms II Shortest Word Distance II 45.7% 52.3% Medium Medium 0.07046545668000562 0.07622736538788424 https://leetcode.com/problems/meeting-rooms-ii https://leetcode.com/problems/shortest-word-distance-ii
9 846 253 Hand of Straights Meeting Rooms II 54.2% 45.7% Medium Medium 0.06472423940349638 0.07046545668000562 https://leetcode.com/problems/hand-of-straights https://leetcode.com/problems/meeting-rooms-ii
10 366 846 Find Leaves of Binary Tree Hand of Straights 70.6% 54.2% Medium Medium 0.05526267867504946 0.06472423940349638 https://leetcode.com/problems/find-leaves-of-binary-tree https://leetcode.com/problems/hand-of-straights
11 143 366 Reorder List Find Leaves of Binary Tree 37.1% 70.6% Medium Medium 0.04554002588608351 0.05526267867504946 https://leetcode.com/problems/reorder-list https://leetcode.com/problems/find-leaves-of-binary-tree
12 341 143 Flatten Nested List Iterator Reorder List 52.9% 37.1% Medium Medium 0.04440788848944038 0.04554002588608351 https://leetcode.com/problems/flatten-nested-list-iterator https://leetcode.com/problems/reorder-list
13 1146 341 Snapshot Array Flatten Nested List Iterator 37.0% 52.9% Medium Medium 0.0317991816929387 0.04440788848944038 https://leetcode.com/problems/snapshot-array https://leetcode.com/problems/flatten-nested-list-iterator
14 284 1146 Peeking Iterator Snapshot Array 45.7% 37.0% Medium Medium 0.03110670713225487 0.0317991816929387 https://leetcode.com/problems/peeking-iterator https://leetcode.com/problems/snapshot-array
15 227 284 Basic Calculator II Peeking Iterator 36.9% 45.7% Medium Medium 0.027685557859864054 0.03110670713225487 https://leetcode.com/problems/basic-calculator-ii https://leetcode.com/problems/peeking-iterator
16 1438 227 Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit Basic Calculator II 42.1% 36.9% Medium Medium 0.026955809988528263 0.027685557859864054 https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit https://leetcode.com/problems/basic-calculator-ii
17 130 1438 Surrounded Regions Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit 28.1% 42.1% Medium Medium 0.02672368055211276 0.026955809988528263 https://leetcode.com/problems/surrounded-regions https://leetcode.com/problems/longest-continuous-subarray-with-absolute-diff-less-than-or-equal-to-limit
18 951 130 Flip Equivalent Binary Trees Surrounded Regions 65.8% 28.1% Medium Medium 0.025269822188076344 0.02672368055211276 https://leetcode.com/problems/flip-equivalent-binary-trees https://leetcode.com/problems/surrounded-regions
19 40 951 Combination Sum II Flip Equivalent Binary Trees 48.2% 65.8% Medium Medium 0.021424290044083395 0.025269822188076344 https://leetcode.com/problems/combination-sum-ii https://leetcode.com/problems/flip-equivalent-binary-trees
20 698 40 Partition to K Equal Sum Subsets Combination Sum II 45.0% 48.2% Medium Medium 0.02109782896463587 0.021424290044083395 https://leetcode.com/problems/partition-to-k-equal-sum-subsets https://leetcode.com/problems/combination-sum-ii
21 1122 698 Relative Sort Array Partition to K Equal Sum Subsets 67.7% 45.0% Easy Medium 0.019685675071030327 0.02109782896463587 https://leetcode.com/problems/relative-sort-array https://leetcode.com/problems/partition-to-k-equal-sum-subsets
22 787 1122 Cheapest Flights Within K Stops Relative Sort Array 39.3% 67.7% Medium Easy 0.018824085245635554 0.019685675071030327 https://leetcode.com/problems/cheapest-flights-within-k-stops https://leetcode.com/problems/relative-sort-array
23 394 787 Decode String Cheapest Flights Within K Stops 50.0% 39.3% Medium Medium 0.0182820448374491 0.018824085245635554 https://leetcode.com/problems/decode-string https://leetcode.com/problems/cheapest-flights-within-k-stops
24 283 394 Move Zeroes Decode String 57.8% 50.0% Easy Medium 0.01789853050377608 0.0182820448374491 https://leetcode.com/problems/move-zeroes https://leetcode.com/problems/decode-string
25 560 283 Subarray Sum Equals K Move Zeroes 43.9% 57.8% Medium Easy 0.017009020666013328 0.01789853050377608 https://leetcode.com/problems/subarray-sum-equals-k https://leetcode.com/problems/move-zeroes
26 240 560 Search a 2D Matrix II Subarray Sum Equals K 43.2% 43.9% Medium Medium 0.0169815401480941 0.017009020666013328 https://leetcode.com/problems/search-a-2d-matrix-ii https://leetcode.com/problems/subarray-sum-equals-k
27 658 240 Find K Closest Elements Search a 2D Matrix II 40.9% 43.2% Medium Medium 0.016611677666896175 0.0169815401480941 https://leetcode.com/problems/find-k-closest-elements https://leetcode.com/problems/search-a-2d-matrix-ii
28 51 658 N-Queens Find K Closest Elements 46.6% 40.9% Hard Medium 0.016393809775676407 0.016611677666896175 https://leetcode.com/problems/n-queens https://leetcode.com/problems/find-k-closest-elements
29 297 51 Serialize and Deserialize Binary Tree N-Queens 47.5% 46.6% Hard Hard 0.01585377577217724 0.016393809775676407 https://leetcode.com/problems/serialize-and-deserialize-binary-tree https://leetcode.com/problems/n-queens
30 215 297 Kth Largest Element in an Array Serialize and Deserialize Binary Tree 55.4% 47.5% Medium Hard 0.015519225147600912 0.01585377577217724 https://leetcode.com/problems/kth-largest-element-in-an-array https://leetcode.com/problems/serialize-and-deserialize-binary-tree
31 977 215 Squares of a Sorted Array Kth Largest Element in an Array 72.1% 55.4% Easy Medium 0.015474196582597383 0.015519225147600912 https://leetcode.com/problems/squares-of-a-sorted-array https://leetcode.com/problems/kth-largest-element-in-an-array
32 153 977 Find Minimum in Rotated Sorted Array Squares of a Sorted Array 45.1% 72.1% Medium Easy 0.014939586916186732 0.015474196582597383 https://leetcode.com/problems/find-minimum-in-rotated-sorted-array https://leetcode.com/problems/squares-of-a-sorted-array
33 443 153 String Compression Find Minimum in Rotated Sorted Array 41.3% 45.1% Easy Medium 0.01390843004613198 0.014939586916186732 https://leetcode.com/problems/string-compression https://leetcode.com/problems/find-minimum-in-rotated-sorted-array
34 703 443 Kth Largest Element in a Stream String Compression 49.7% 41.3% Easy Easy 0.013898764390814973 0.01390843004613198 https://leetcode.com/problems/kth-largest-element-in-a-stream https://leetcode.com/problems/string-compression
35 138 703 Copy List with Random Pointer Kth Largest Element in a Stream 36.4% 49.7% Medium Easy 0.013876263355766411 0.013898764390814973 https://leetcode.com/problems/copy-list-with-random-pointer https://leetcode.com/problems/kth-largest-element-in-a-stream
36 767 138 Reorganize String Copy List with Random Pointer 48.7% 36.4% Medium Medium 0.01329806830463147 0.013876263355766411 https://leetcode.com/problems/reorganize-string https://leetcode.com/problems/copy-list-with-random-pointer
37 665 767 Non-decreasing Array Reorganize String 19.5% 48.7% Easy Medium 0.013016779950191773 0.01329806830463147 https://leetcode.com/problems/non-decreasing-array https://leetcode.com/problems/reorganize-string
38 33 665 Search in Rotated Sorted Array Non-decreasing Array 34.5% 19.5% Medium Easy 0.012857779194289386 0.013016779950191773 https://leetcode.com/problems/search-in-rotated-sorted-array https://leetcode.com/problems/non-decreasing-array
39 129 33 Sum Root to Leaf Numbers Search in Rotated Sorted Array 49.1% 34.5% Medium Medium 0.012739025777429757 0.012857779194289386 https://leetcode.com/problems/sum-root-to-leaf-numbers https://leetcode.com/problems/search-in-rotated-sorted-array
40 213 129 House Robber II Sum Root to Leaf Numbers 36.5% 49.1% Medium Medium 0.012654392210497564 0.012739025777429757 https://leetcode.com/problems/house-robber-ii https://leetcode.com/problems/sum-root-to-leaf-numbers
41 287 213 Find the Duplicate Number House Robber II 55.5% 36.5% Medium Medium 0.012335682739188652 0.012654392210497564 https://leetcode.com/problems/find-the-duplicate-number https://leetcode.com/problems/house-robber-ii
42 445 287 Add Two Numbers II Find the Duplicate Number 54.5% 55.5% Medium Medium 0.01233061245747872 0.012335682739188652 https://leetcode.com/problems/add-two-numbers-ii https://leetcode.com/problems/find-the-duplicate-number
43 547 445 Friend Circles Add Two Numbers II 58.6% 54.5% Medium Medium 0.012228828639434596 0.01233061245747872 https://leetcode.com/problems/friend-circles https://leetcode.com/problems/add-two-numbers-ii
44 300 547 Longest Increasing Subsequence Friend Circles 42.6% 58.6% Medium Medium 0.011806512586989004 0.012228828639434596 https://leetcode.com/problems/longest-increasing-subsequence https://leetcode.com/problems/friend-circles
45 200 300 Number of Islands Longest Increasing Subsequence 46.8% 42.6% Medium Medium 0.011509262420590827 0.011806512586989004 https://leetcode.com/problems/number-of-islands https://leetcode.com/problems/longest-increasing-subsequence
46 785 200 Is Graph Bipartite? Number of Islands 47.5% 46.8% Medium Medium 0.011236073266925854 0.011509262420590827 https://leetcode.com/problems/is-graph-bipartite https://leetcode.com/problems/number-of-islands
47 160 785 Intersection of Two Linked Lists Is Graph Bipartite? 40.6% 47.5% Easy Medium 0.010994491398666248 0.011236073266925854 https://leetcode.com/problems/intersection-of-two-linked-lists https://leetcode.com/problems/is-graph-bipartite
48 662 160 Maximum Width of Binary Tree Intersection of Two Linked Lists 41.0% 40.6% Medium Easy 0.010790501245113902 0.010994491398666248 https://leetcode.com/problems/maximum-width-of-binary-tree https://leetcode.com/problems/intersection-of-two-linked-lists
49 211 662 Add and Search Word - Data structure design Maximum Width of Binary Tree 38.1% 41.0% Medium Medium 0.010438508143923443 0.010790501245113902 https://leetcode.com/problems/add-and-search-word-data-structure-design https://leetcode.com/problems/maximum-width-of-binary-tree
50 1 211 Two Sum Add and Search Word - Data structure design 45.6% 38.1% Easy Medium 0.010006414028595919 0.010438508143923443 https://leetcode.com/problems/two-sum https://leetcode.com/problems/add-and-search-word-data-structure-design
51 17 1 Letter Combinations of a Phone Number Two Sum 46.8% 45.6% Medium Easy 0.00987716546167603 0.010006414028595919 https://leetcode.com/problems/letter-combinations-of-a-phone-number https://leetcode.com/problems/two-sum
52 3 17 Longest Substring Without Repeating Characters Letter Combinations of a Phone Number 30.4% 46.8% Medium Medium 0.009683242444739549 0.00987716546167603 https://leetcode.com/problems/longest-substring-without-repeating-characters https://leetcode.com/problems/letter-combinations-of-a-phone-number
53 46 3 Permutations Longest Substring Without Repeating Characters 63.5% 30.4% Medium Medium 0.009461803137288448 0.009683242444739549 https://leetcode.com/problems/permutations https://leetcode.com/problems/longest-substring-without-repeating-characters
54 206 46 Reverse Linked List Permutations 62.5% 63.5% Easy Medium 0.009326794511974934 0.009461803137288448 https://leetcode.com/problems/reverse-linked-list https://leetcode.com/problems/permutations
55 23 206 Merge k Sorted Lists Reverse Linked List 40.2% 62.5% Hard Easy 0.009092808657599025 0.009326794511974934 https://leetcode.com/problems/merge-k-sorted-lists https://leetcode.com/problems/reverse-linked-list
56 5 23 Longest Palindromic Substring Merge k Sorted Lists 29.5% 40.2% Medium Hard 0.009086325220960808 0.009092808657599025 https://leetcode.com/problems/longest-palindromic-substring https://leetcode.com/problems/merge-k-sorted-lists
57 173 5 Binary Search Tree Iterator Longest Palindromic Substring 56.6% 29.5% Medium Medium 0.008489015324911316 0.009086325220960808 https://leetcode.com/problems/binary-search-tree-iterator https://leetcode.com/problems/longest-palindromic-substring
58 102 173 Binary Tree Level Order Traversal Binary Search Tree Iterator 54.6% 56.6% Medium Medium 0.008169238497129479 0.008489015324911316 https://leetcode.com/problems/binary-tree-level-order-traversal https://leetcode.com/problems/binary-search-tree-iterator
59 141 102 Linked List Cycle Binary Tree Level Order Traversal 41.1% 54.6% Easy Medium 0.007843861028908454 0.008169238497129479 https://leetcode.com/problems/linked-list-cycle https://leetcode.com/problems/binary-tree-level-order-traversal
60 56 141 Merge Intervals Linked List Cycle 39.3% 41.1% Medium Easy 0.007796972706004796 0.007843861028908454 https://leetcode.com/problems/merge-intervals https://leetcode.com/problems/linked-list-cycle
61 994 56 Rotting Oranges Merge Intervals 49.2% 39.3% Medium Medium 0.007630712341163886 0.007796972706004796 https://leetcode.com/problems/rotting-oranges https://leetcode.com/problems/merge-intervals
62 176 994 Second Highest Salary Rotting Oranges 31.6% 49.2% Easy Medium 0.007393749024938284 0.007630712341163886 https://leetcode.com/problems/second-highest-salary https://leetcode.com/problems/rotting-oranges
63 10 176 Regular Expression Matching Second Highest Salary 26.8% 31.6% Hard Easy 0.0071865203293987245 0.007393749024938284 https://leetcode.com/problems/regular-expression-matching https://leetcode.com/problems/second-highest-salary
64 41 10 First Missing Positive Regular Expression Matching 32.0% 26.8% Hard Hard 0.0064113058208121855 0.0071865203293987245 https://leetcode.com/problems/first-missing-positive https://leetcode.com/problems/regular-expression-matching
65 83 41 Remove Duplicates from Sorted List First Missing Positive 45.4% 32.0% Easy Hard 0.006353261522609498 0.0064113058208121855 https://leetcode.com/problems/remove-duplicates-from-sorted-list https://leetcode.com/problems/first-missing-positive
66 202 83 Happy Number Remove Duplicates from Sorted List 50.4% 45.4% Easy Easy 0.006266666286010046 0.006353261522609498 https://leetcode.com/problems/happy-number https://leetcode.com/problems/remove-duplicates-from-sorted-list
67 76 202 Minimum Window Substring Happy Number 34.6% 50.4% Hard Easy 0.006231520398723243 0.006266666286010046 https://leetcode.com/problems/minimum-window-substring https://leetcode.com/problems/happy-number
68 31 76 Next Permutation Minimum Window Substring 32.6% 34.6% Medium Hard 0.005989835219179644 0.006231520398723243 https://leetcode.com/problems/next-permutation https://leetcode.com/problems/minimum-window-substring
69 39 31 Combination Sum Next Permutation 56.1% 32.6% Medium Medium 0.005715934396440999 0.005989835219179644 https://leetcode.com/problems/combination-sum https://leetcode.com/problems/next-permutation
70 199 39 Binary Tree Right Side View Combination Sum 54.1% 56.1% Medium Medium 0.0056826406650506926 0.005715934396440999 https://leetcode.com/problems/binary-tree-right-side-view https://leetcode.com/problems/combination-sum
71 20 199 Valid Parentheses Binary Tree Right Side View 39.0% 54.1% Easy Medium 0.005168860577665306 0.0056826406650506926 https://leetcode.com/problems/valid-parentheses https://leetcode.com/problems/binary-tree-right-side-view
72 15 20 3Sum Valid Parentheses 26.8% 39.0% Medium Easy 0.004940992758742591 0.005168860577665306 https://leetcode.com/problems/3sum https://leetcode.com/problems/valid-parentheses
73 236 15 Lowest Common Ancestor of a Binary Tree 3Sum 45.7% 26.8% Medium Medium 0.004714210262726446 0.004940992758742591 https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree https://leetcode.com/problems/3sum
74 42 236 Trapping Rain Water Lowest Common Ancestor of a Binary Tree 48.9% 45.7% Hard Medium 0.004350670338744988 0.004714210262726446 https://leetcode.com/problems/trapping-rain-water https://leetcode.com/problems/lowest-common-ancestor-of-a-binary-tree
75 322 42 Coin Change Trapping Rain Water 35.5% 48.9% Medium Hard 0.004029826126500844 0.004350670338744988 https://leetcode.com/problems/coin-change https://leetcode.com/problems/trapping-rain-water
76 189 322 Rotate Array Coin Change 34.7% 35.5% Easy Medium 0.004029826126500844 0.004029826126500844 https://leetcode.com/problems/rotate-array https://leetcode.com/problems/coin-change
77 125 189 Valid Palindrome Rotate Array 36.7% 34.7% Easy Easy 0.0039805008274065926 0.004029826126500844 https://leetcode.com/problems/valid-palindrome https://leetcode.com/problems/rotate-array
78 238 125 Product of Array Except Self Valid Palindrome 60.1% 36.7% Medium Easy 0.003930436424724545 0.0039805008274065926 https://leetcode.com/problems/product-of-array-except-self https://leetcode.com/problems/valid-palindrome
79 139 238 Word Break Product of Array Except Self 40.1% 60.1% Medium Medium 0.003894465052690167 0.003930436424724545 https://leetcode.com/problems/word-break https://leetcode.com/problems/product-of-array-except-self
80 103 139 Binary Tree Zigzag Level Order Traversal Word Break 48.3% 40.1% Medium Medium 0.003839922800048048 0.003894465052690167 https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal https://leetcode.com/problems/word-break
81 8 103 String to Integer (atoi) Binary Tree Zigzag Level Order Traversal 15.4% 48.3% Medium Medium 0.0037925521897059712 0.003839922800048048 https://leetcode.com/problems/string-to-integer-atoi https://leetcode.com/problems/binary-tree-zigzag-level-order-traversal
82 198 8 House Robber String to Integer (atoi) 42.0% 15.4% Easy Medium 0.0037576371128333645 0.0037925521897059712 https://leetcode.com/problems/house-robber https://leetcode.com/problems/string-to-integer-atoi
83 347 198 Top K Frequent Elements House Robber 61.2% 42.0% Medium Easy 0.0033396446491217604 0.0037576371128333645 https://leetcode.com/problems/top-k-frequent-elements https://leetcode.com/problems/house-robber
84 14 347 Longest Common Prefix Top K Frequent Elements 35.4% 61.2% Easy Medium 0.003320331762984143 0.0033396446491217604 https://leetcode.com/problems/longest-common-prefix https://leetcode.com/problems/top-k-frequent-elements
85 66 14 Plus One Longest Common Prefix 43.0% 35.4% Easy Easy 0.00326211347832938 0.003320331762984143 https://leetcode.com/problems/plus-one https://leetcode.com/problems/longest-common-prefix
86 98 66 Validate Binary Search Tree Plus One 27.8% 43.0% Medium Easy 0.002943776044013381 0.00326211347832938 https://leetcode.com/problems/validate-binary-search-tree https://leetcode.com/problems/plus-one
87 21 98 Merge Two Sorted Lists Validate Binary Search Tree 53.5% 27.8% Easy Medium 0.0022551737583973706 0.002943776044013381 https://leetcode.com/problems/merge-two-sorted-lists https://leetcode.com/problems/validate-binary-search-tree
88 50 21 Pow(x;n) Merge Two Sorted Lists 30.3% 53.5% Medium Easy 0.0014016892647828818 0.0022551737583973706 https://leetcode.com/problems/powx-n https://leetcode.com/problems/merge-two-sorted-lists
89 50 Pow(x;n) 30.3% Medium 0.0014016892647828818 https://leetcode.com/problems/powx-n