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131 problems · 74 with a MIK video · 24 asked in the last 6 months
D · DSA 73Q · SQL & DBMS 1
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131 problems, most frequent first

DoneLC #ProblemLevelHow often askedMIK video
1493Longest Subarray of 1's After Deleting One ElementSliding Window · Asked in the last 6 monthsMedium100▶ Watch
849Maximize Distance to Closest Person ↗Asked in the last 6 monthsMedium92Not covered yet
228Summary RangesArrays · Asked in the last 6 monthsEasy89▶ Watch
3Longest Substring Without Repeating Characters ↗Asked in the last 6 monthsMedium83Not covered yet
658Find K Closest Elements ↗Asked in the last 6 monthsMedium83Not covered yet
443String CompressionStrings · Asked in the last 6 monthsMedium81▶ Watch
680Valid Palindrome II ↗Asked in the last 6 monthsEasy80Not covered yet
560Subarray Sum Equals KArrays · Asked in the last 6 monthsMedium79▶ Watch
56Merge Intervals ↗Asked in the last 6 monthsMedium78Not covered yet
283Move Zeroes ↗Easy73Not covered yet
205Isomorphic StringsHashingEasy72▶ Watch
125Valid Palindrome ↗Easy71Not covered yet
161One Edit Distance ↗LeetCode PremiumMedium71Not covered yet
356Line Reflection ↗LeetCode PremiumMedium71Not covered yet
380Insert Delete GetRandom O(1)Design Data Structures · Asked in the last 6 monthsMedium70▶ Watch
438Find All Anagrams in a StringSliding WindowMedium69▶ Watch
3105Longest Strictly Increasing or Strictly Decreasing SubarrayArraysEasy69▶ Watch
5Longest Palindromic SubstringDynamic Programming · Asked in the last 6 monthsMedium68▶ Watch
200Number of IslandsArrays · Asked in the last 6 monthsMedium68▶ Watch
567Permutation in StringSliding WindowMedium66▶ Watch
2657Find the Prefix Common Array of Two ArraysArraysMedium66▶ Watch
1Two SumArraysEasy65▶ Watch
977Squares of a Sorted ArrayArrays · Asked in the last 6 monthsEasy64▶ Watch
42Trapping Rain WaterArraysHard62▶ Watch
49Group AnagramsArraysMedium62▶ Watch
986Interval List Intersections ↗Asked in the last 6 monthsMedium62Not covered yet
88Merge Sorted Array ↗Easy61Not covered yet
21Merge Two Sorted Lists ↗Easy61Not covered yet
20Valid ParenthesesStackEasy61▶ Watch
2241Design an ATM Machine ↗Medium61Not covered yet
652Find Duplicate SubtreesTrees · Asked in the last 6 monthsMedium59▶ Watch
392Is Subsequence ↗Easy59Not covered yet
101Symmetric TreeTrees · Asked in the last 6 monthsEasy57▶ Watch
1004Max Consecutive Ones IIISliding Window · Asked in the last 6 monthsMedium57▶ Watch
155Min Stack ↗Medium57Not covered yet
199Binary Tree Right Side ViewTrees · Asked in the last 6 monthsMedium57▶ Watch
238Product of Array Except SelfArraysMedium57▶ Watch
236Lowest Common Ancestor of a Binary TreeTreesMedium55▶ Watch
33Search in Rotated Sorted ArrayBinary Search · Asked in the last 6 monthsMedium53▶ Watch
332Reconstruct ItineraryGraphsHard53▶ Watch

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