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BlackRock

17 problems · 11 with a MIK video · 4 asked in the last 6 months
D · DSA 11
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17 problems, most frequent first

DoneLC #ProblemLevelHow often askedMIK video
202Happy Number ↗Easy100Not covered yet
20Valid ParenthesesStack · Asked in the last 6 monthsEasy74▶ Watch
3068Find the Maximum Sum of Node ValuesGreedyHard74▶ Watch
3004Maximum Subtree of the Same Color ↗LeetCode PremiumMedium73Not covered yet
49Group AnagramsArraysMedium60▶ Watch
121Best Time to Buy and Sell Stock ↗Easy56Not covered yet
2291Maximum Profit From Trading Stocks ↗LeetCode PremiumMedium51Not covered yet
3998Transform Binary String Using Subsequence Sort ↗Asked in the last 6 monthsMedium51Not covered yet
236Lowest Common Ancestor of a Binary TreeTrees · Asked in the last 6 monthsMedium51▶ Watch
235Lowest Common Ancestor of a Binary Search Tree ↗Asked in the last 6 monthsMedium51Not covered yet
1Two SumArraysEasy43▶ Watch
200Number of IslandsArraysMedium43▶ Watch
5Longest Palindromic SubstringDynamic ProgrammingMedium43▶ Watch
268Missing NumberMathEasy43▶ Watch
70Climbing StairsDynamic ProgrammingEasy43▶ Watch
12Integer to RomanStringsMedium43▶ Watch
287Find the Duplicate NumberArraysMedium43▶ Watch

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