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Problems

190 problems

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

Easy · 190 results

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TitleSolutionAcceptDifficultyTopics
3146. Permutation Difference between Two StringsVideo
Solution87.9%Easy
Hash Table, String· 1 company
3158. Find the XOR of Numbers Which Appear TwiceVideo
Solution78.9%Easy
Array, Bit Manipulation +1· 2 companies
3162. Find the Number of Good Pairs IVideo
Solution86.4%Easy
Array, Hash Table· 1 company
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
3242. Design Neighbor Sum ServiceVideo
Solution76.4%Easy
Array, Design +3
3289. The Two Sneaky Numbers of DigitvilleVideo
Solution89.9%Easy
Array, Hash Table +1· 4 companies
3318. Find X-Sum of All K-Long Subarrays IVideo
Solution76.1%Easy
Array, Hash Table +2· 5 companies
3375. Minimum Operations to Make Array Values Equal to KVideo
Solution73.3%Easy
Array, Hash Table· 4 companies
3396. Minimum Number of Operations to Make Elements in Array DistinctVideo
Solution71.3%Easy
Array, Hash Table· 5 companies
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
3450. Maximum Students on a Single BenchVideoPremium
Solution87.8%Easy
Array, Hash Table
3471. Find the Largest Almost Missing IntegerVideo
Solution49.4%Easy
Array, Hash Table· 2 companies
3483. Unique 3-Digit Even NumbersVideo
Solution79.8%Easy
Array, Enumeration +2· 3 companies
3487. Maximum Unique Subarray Sum After DeletionVideo
Solution40.5%Easy
Array, Greedy +1· 5 companies
3507. Minimum Pair Removal to Sort Array IVideo
Solution65.3%Easy
Array, Doubly-Linked List +5· 5 companies
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
3606. Coupon Code ValidatorVideo
Solution64.4%Easy
Array, Hash Table +2· 2 companies
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
3668. Restore Finishing OrderVideo
Solution91.1%Easy
Array, Hash Table· 2 companies
3678. Smallest Absent Positive Greater Than AverageVideo
Solution34.2%Easy
Array, Hash Table
3684. Maximize Sum of At Most K Distinct ElementsVideo
Solution76.8%Easy
Array, Greedy +2
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
3718. Smallest Missing Multiple of KVideo
Solution71.5%Easy
Array, Hash Table
3731. Find Missing ElementsVideo
Solution88.6%Easy
Array, Hash Table +1· 2 companies
3740. Minimum Distance Between Three Equal Elements IVideo
Solution73.4%Easy
Array, Hash Table· 2 companies
3803. Count Residue PrefixesVideo
Solution65.2%Easy
Hash Table, String· 2 companies
3842. Toggle Light BulbsVideo
Solution71.2%Easy
Array, Hash Table +2· 1 company
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
3945. Digit Frequency ScoreVideo
Solution90.7%Easy
Hash Table, Math
4038. Count Integers Appearing in a Single BlockVideo
Solution44.4%Easy
Array, Counting +1
4048. Count Values With Equally Spaced Occurrences IVideo
Solution75.3%Easy
Array, Hash Table
4065. Rearrange Array by Removing Distinct ValuesVideo
Solution75.0%Easy
Array, Counting +5
Showing 151–190 of 190