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Problems

70 problems

Has videoPremium onlyReset
Array447String249Hash Table190Math173Database113Sorting100Simulation93Counting70Two Pointers70Bit Manipulation54Greedy51Matrix41Tree40Depth-First Search39Binary Tree37All topics

Easy · 70 results

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TitleSolutionAcceptDifficultyTopics
3063. Linked List FrequencyVideoPremium
Solution85.8%Easy
Counting, Hash Table +1
3184. Count Pairs That Form a Complete Day IVideo
Solution78.0%Easy
Array, Counting +1· 1 company
3238. Find the Number of Winning PlayersVideo
Solution60.5%Easy
Array, Counting +1· 1 company
3438. Find Valid Pair of Adjacent Digits in StringVideo
Solution60.7%Easy
Counting, Hash Table +1· 3 companies
3442. Maximum Difference Between Even and Odd Frequency IVideo
Solution60.7%Easy
Counting, Hash Table +1· 4 companies
3467. Transform Array by ParityVideo
Solution89.7%Easy
Array, Counting +1· 1 company
3541. Find Most Frequent Vowel and ConsonantVideo
Solution89.4%Easy
Counting, Hash Table +1· 3 companies
3545. Minimum Deletions for At Most K Distinct CharactersVideo
Solution72.2%Easy
Counting, Greedy +3· 2 companies
3581. Count Odd Letters from NumberVideoPremium
Solution85.1%Easy
Counting, Hash Table +2
3591. Check if Any Element Has Prime FrequencyVideo
Solution62.6%Easy
Array, Counting +3
3662. Filter Characters by FrequencyPremium
Solution86.2%Easy
Counting, Hash Table +1· 1 company
3663. Find The Least Frequent DigitVideo
Solution68.8%Easy
Array, Counting +2· 1 company
3692. Majority Frequency CharactersVideo
Solution66.3%Easy
Counting, Hash Table +1
3712. Sum of Elements With Frequency Divisible by KVideo
Solution77.7%Easy
Array, Counting +1
3852. Smallest Pair With Different FrequenciesVideo
Solution68.5%Easy
Array, Counting +1· 1 company
3866. First Unique Even ElementVideo
Solution65.6%Easy
Array, Counting +1
3978. Unique Middle ElementVideo
Solution72.3%Easy
Array, Counting
4006. Count Valid PrefixesVideo
Solution78.0%Easy
Counting, String
4038. Count Integers Appearing in a Single BlockVideo
Solution44.4%Easy
Array, Counting +1
4065. Rearrange Array by Removing Distinct ValuesVideo
Solution75.0%Easy
Array, Counting +5
Showing 51–70 of 70