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1396 questions

Interview frequency breakdown: 30-day, 3-month, 6-month & all-time

439 Easy 752 Med 205 Hard
Timeframe:
Showing 1396 questions
#1Two SumEasyarrayNeetCode
100% Freq
30d
#4Median of Two Sorted ArraysHardarrayNeetCode
100% Freq
30d
#153SumMediumarrayNeetCode
100% Freq
30d
#1249Minimum Remove to Make Valid ParenthesesMediumstringWalkCCC
100% Freq
3m
#408Valid Word AbbreviationEasytwo pointersWalkCCC
97% Freq
#680Valid Palindrome IIEasytwo pointersNeetCode
96% Freq
6m
#215Kth Largest Element in an ArrayMediumarrayNeetCode
94% Freq
3m
#314Binary Tree Vertical Order TraversalMediumhash tableWalkCCC
94% Freq
#20Valid ParenthesesEasystringNeetCode
93% Freq
30d
#26Remove Duplicates from Sorted ArrayEasyarrayNeetCode
93% Freq
30d
#227Basic Calculator IIMediummathWalkCCC
90% Freq
#560Subarray Sum Equals KMediumarrayNeetCode
88% Freq
3m
#1650Lowest Common Ancestor of a Binary Tree IIIMediumhash tableWalkCCC
88% Freq
6m
#543Diameter of Binary TreeEasytreeNeetCode
88% Freq
30d
#528Random Pick with WeightMediumarrayWalkCCC
87% Freq
#339Nested List Weight SumMediumdepth first searchWalkCCC
87% Freq
6m
#88Merge Sorted ArrayEasyarrayNeetCode
87% Freq
30d
#236Lowest Common Ancestor of a Binary TreeMediumtreeNeetCode
87% Freq
#199Binary Tree Right Side ViewMediumtreeNeetCode
87% Freq
3m
#162Find Peak ElementMediumarrayNeetCode
86% Freq
3m
#56Merge IntervalsMediumarrayNeetCode
85% Freq
3m
#2Add Two NumbersMediumlinked listNeetCode
84% Freq
30d
#9Palindrome NumberEasymathWalkCCC
84% Freq
30d
#21Merge Two Sorted ListsEasylinked listNeetCode
84% Freq
30d
#50Pow(x, n)MediummathNeetCode
84% Freq
6m
#121Best Time to Buy and Sell StockEasyarrayNeetCode
84% Freq
30d
#344Reverse StringEasytwo pointersNeetCode
84% Freq
30d
#1541Minimum Insertions to Balance a Parentheses StringMediumstringWalkCCC
84% Freq
30d
#125Valid PalindromeEasytwo pointersNeetCode
84% Freq
30d
#71Simplify PathMediumstringNeetCode
84% Freq
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