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1,399 problems · 846 with a MIK video · 377 asked in the last 6 months
D · DSA 769Q · SQL & DBMS 77
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1399 problems, most frequent first

DoneLC #ProblemLevelHow often askedMIK video
1249Minimum Remove to Make Valid ParenthesesStack · Asked in the last 6 monthsMedium100▶ Watch
408Valid Word Abbreviation ↗Asked in the last 6 months · LeetCode PremiumEasy97Not covered yet
680Valid Palindrome II ↗Asked in the last 6 monthsEasy95Not covered yet
314Binary Tree Vertical Order Traversal ↗Asked in the last 6 months · LeetCode PremiumMedium93Not covered yet
215Kth Largest Element in an ArrayHeap / Priority Queue · Asked in the last 6 monthsMedium93▶ Watch
1Two SumArrays · Asked in the last 6 monthsEasy90▶ Watch
227Basic Calculator II ↗Asked in the last 6 monthsMedium89Not covered yet
1650Lowest Common Ancestor of a Binary Tree III ↗Asked in the last 6 months · LeetCode PremiumMedium89Not covered yet
339Nested List Weight Sum ↗Asked in the last 6 months · LeetCode PremiumMedium88Not covered yet
528Random Pick with Weight ↗Asked in the last 6 monthsMedium88Not covered yet
560Subarray Sum Equals KArrays · Asked in the last 6 monthsMedium87▶ Watch
543Diameter of Binary TreeTrees · Asked in the last 6 monthsEasy87▶ Watch
236Lowest Common Ancestor of a Binary TreeTrees · Asked in the last 6 monthsMedium86▶ Watch
88Merge Sorted Array ↗Asked in the last 6 monthsEasy86Not covered yet
162Find Peak Element ↗Asked in the last 6 monthsMedium86Not covered yet
199Binary Tree Right Side ViewTrees · Asked in the last 6 monthsMedium85▶ Watch
56Merge Intervals ↗Asked in the last 6 monthsMedium85Not covered yet
50Pow(x, n)Math · Asked in the last 6 monthsMedium84▶ Watch
71Simplify PathStack · Asked in the last 6 monthsMedium84▶ Watch
125Valid Palindrome ↗Asked in the last 6 monthsEasy83Not covered yet
1762Buildings With an Ocean View ↗Asked in the last 6 months · LeetCode PremiumMedium83Not covered yet
121Best Time to Buy and Sell Stock ↗Asked in the last 6 monthsEasy82Not covered yet
347Top K Frequent ElementsHeap / Priority Queue · Asked in the last 6 monthsMedium81▶ Watch
1091Shortest Path in Binary MatrixGraphs · Asked in the last 6 monthsMedium81▶ Watch
1570Dot Product of Two Sparse Vectors ↗Asked in the last 6 months · LeetCode PremiumMedium80Not covered yet
31Next PermutationArrays · Asked in the last 6 monthsMedium79▶ Watch
146LRU CacheDesign Data Structures · Asked in the last 6 monthsMedium79▶ Watch
129Sum Root to Leaf NumbersTrees · Asked in the last 6 monthsMedium78▶ Watch
138Copy List with Random PointerLinked List · Asked in the last 6 monthsMedium78▶ Watch
938Range Sum of BSTBinary Search Trees · Asked in the last 6 monthsEasy78▶ Watch
973K Closest Points to Origin ↗Asked in the last 6 monthsMedium77Not covered yet
23Merge k Sorted ListsHeap / Priority Queue · Asked in the last 6 monthsHard75▶ Watch
1004Max Consecutive Ones IIISliding Window · Asked in the last 6 monthsMedium75▶ Watch
20Valid ParenthesesStack · Asked in the last 6 monthsEasy74▶ Watch
2Add Two Numbers ↗Asked in the last 6 monthsMedium74Not covered yet
986Interval List Intersections ↗Asked in the last 6 monthsMedium74Not covered yet
346Moving Average from Data Stream ↗Asked in the last 6 months · LeetCode PremiumEasy73Not covered yet
34Find First and Last Position of Element in Sorted ArrayBinary Search · Asked in the last 6 monthsMedium73▶ Watch
791Custom Sort StringStrings · Asked in the last 6 monthsMedium73▶ Watch
827Making A Large IslandGraphs · Asked in the last 6 monthsHard73▶ Watch

Source: community data (liquidslr/leetcode-company-wise-problems), updated Aug 16, 2026. Company tags are crowd-reported and may be incomplete.