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Problems

19 problems

Has videoPremium onlyReset
Bit ManipulationArray194Database104Hash Table83String71Depth-First Search57Dynamic Programming49Tree48Math45Sorting43Breadth-First Search40Greedy40Binary Tree38Binary Search31Two Pointers29Matrix28All topics

Medium · Premium · 19 results

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TitleSolutionAcceptDifficultyTopics
320. Generalized AbbreviationVideoPremium
Solution61.0%Medium
Backtracking, Bit Manipulation +1· 1 company
351. Android Unlock PatternsVideoPremium
Solution53.8%Medium
Backtracking, Bit Manipulation +2· 1 company
751. IP to CIDRVideoPremium
–53.7%Medium
Bit Manipulation, String· 4 companies
1066. Campus Bikes IIVideoPremium
Solution55.9%Medium
Array, Backtracking +3· 1 company
1256. Encode NumberVideoPremium
Solution70.0%Medium
Bit Manipulation, Math +1· 1 company
1506. Find Root of N-Ary TreeVideoPremium
Solution78.4%Medium
Bit Manipulation, Depth-First Search +2· 3 companies
1908. Game of NimVideoPremium
Solution62.4%Medium
Array, Bit Manipulation +4
2128. Remove All Ones With Row and Column FlipsVideoPremium
Solution76.2%Medium
Array, Bit Manipulation +2· 1 company
2152. Minimum Number of Lines to Cover PointsVideoPremium
Solution42.9%Medium
Array, Backtracking +6· 1 company
2174. Remove All Ones With Row and Column Flips IIVideoPremium
Solution67.2%Medium
Array, Bit Manipulation +2· 1 company
2184. Number of Ways to Build Sturdy Brick WallVideoPremium
Solution49.2%Medium
Array, Bit Manipulation +2· 2 companies
2505. Bitwise OR of All Subsequence SumsVideoPremium
Solution63.4%Medium
Array, Bit Manipulation +2· 1 company
2802. Find The K-th Lucky NumberVideoPremium
Solution76.1%Medium
Bit Manipulation, Math +1
2992. Number of Self-Divisible PermutationsVideoPremium
Solution72.0%Medium
Array, Backtracking +3· 1 company
3064. Guess the Number Using Bitwise Questions IVideoPremium
Solution89.0%Medium
Bit Manipulation, Interactive
3094. Guess the Number Using Bitwise Questions IIVideoPremium
Solution81.8%Medium
Bit Manipulation, Interactive
3215. Count Triplets with Even XOR Set Bits IIVideoPremium
Solution62.0%Medium
Array, Bit Manipulation· 1 company
3344. Maximum Sized ArrayVideoPremium
Solution51.4%Medium
Binary Search, Bit Manipulation
3595. Once TwicePremium
–76.1%Medium
Array, Bit Manipulation
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