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331 problems

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Array1,212 Hash Table473 String437 Math331 Greedy330 Dynamic Programming327 Sorting302 Depth-First Search208 Binary Search189 Breadth-First Search166 Matrix163 Tree158 Prefix Sum155 Two Pointers150 Database137 All topics

Medium · 331 results

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TitleSolutionAcceptDifficultyTopics

2457. Minimum Addition to Make Integer BeautifulVideo

Solution38.6%Medium

Greedy, Math· 3 companies

2464. Minimum Subarrays in a Valid SplitVideoPremium

Solution64.7%Medium

Array, Dynamic Programming +2

2470. Number of Subarrays With LCM Equal to KVideo

Solution47.6%Medium

Array, Math +1· 3 companies

2489. Number of Substrings With Fixed RatioVideoPremium

Solution56.0%Medium

Hash Table, Math +2· 1 company

2495. Number of Subarrays Having Even ProductVideoPremium

Solution63.2%Medium

Array, Dynamic Programming +1

2505. Bitwise OR of All Subsequence SumsVideoPremium

Solution63.4%Medium

Array, Bit Manipulation +2· 1 company

2507. Smallest Value After Replacing With Sum of Prime FactorsVideo

Solution50.4%Medium

Math, Number Theory +1

2513. Minimize the Maximum of Two ArraysVideo

Solution32.8%Medium

Binary Search, Math +1· 1 company

2521. Distinct Prime Factors of Product of ArrayVideo

Solution55.5%Medium

Array, Hash Table +2· 2 companies

2523. Closest Prime Numbers in RangeVideo

Solution51.7%Medium

Math, Number Theory· 6 companies

2527. Find Xor-Beauty of ArrayVideo

Solution71.3%Medium

Array, Bit Manipulation +1· 1 company

2539. Count the Number of Good SubsequencesVideoPremium

Solution47.7%Medium

Combinatorics, Counting +3· 4 companies

2541. Minimum Operations to Make Array Equal IIVideo

Solution33.1%Medium

Array, Greedy +1· 1 company

2550. Count Collisions of Monkeys on a PolygonVideo

Solution30.6%Medium

Math, Recursion· 3 companies

2572. Count the Number of Square-Free SubsetsVideo

Solution27.1%Medium

Array, Bit Manipulation +3· 2 companies

2575. Find the Divisibility Array of a StringVideo

Solution37.1%Medium

Array, Math +1· 2 companies

2579. Count Total Number of Colored CellsVideo

Solution66.1%Medium

Math· 5 companies

2597. The Number of Beautiful SubsetsVideo

Solution50.9%Medium

Array, Backtracking +5· 4 companies

2598. Smallest Missing Non-negative Integer After OperationsVideo

Solution56.0%Medium

Array, Greedy +2· 6 companies

2601. Prime Subtraction OperationVideo

Solution55.9%Medium

Array, Binary Search +3· 4 companies

2607. Make K-Subarray Sums EqualVideo

Solution38.9%Medium

Array, Math +2· 2 companies

2638. Count the Number of K-Free SubsetsVideoPremium

Solution47.4%Medium

Array, Combinatorics +3· 1 company

2654. Minimum Number of Operations to Make All Array Elements Equal to 1Video

Solution54.7%Medium

Array, Math +1· 2 companies

2698. Find the Punishment Number of an IntegerVideo

Solution81.7%Medium

Backtracking, Math· 4 companies

2745. Construct the Longest New StringVideo

Solution53.8%Medium

Brainteaser, Dynamic Programming +2· 2 companies

2750. Ways to Split Array Into Good SubarraysVideo

Solution34.9%Medium

Array, Dynamic Programming +1· 1 company

2761. Prime Pairs With Target SumVideo

Solution38.4%Medium

Array, Enumeration +2

2802. Find The K-th Lucky NumberVideoPremium

Solution76.1%Medium

Bit Manipulation, Math +1

2807. Insert Greatest Common Divisors in Linked ListVideo

Solution91.4%Medium

Linked List, Math +1· 4 companies

2816. Double a Number Represented as a Linked ListVideo

Solution61.4%Medium

Linked List, Math +1· 3 companies

2829. Determine the Minimum Sum of a k-avoiding ArrayVideo

Solution59.7%Medium

Greedy, Math· 1 company

2834. Find the Minimum Possible Sum of a Beautiful ArrayVideo

Solution35.1%Medium

Greedy, Math· 1 company

2844. Minimum Operations to Make a Special NumberVideo

Solution38.5%Medium

Enumeration, Greedy +2

2847. Smallest Number With Given Digit ProductVideoPremium

Solution43.8%Medium

Greedy, Math· 1 company

2849. Determine if a Cell Is Reachable at a Given TimeVideo

Solution37.2%Medium

Math· 2 companies

2929. Distribute Candies Among Children IIVideo

Solution55.7%Medium

Combinatorics, Enumeration +1· 5 companies

2930. Number of Strings Which Can Be Rearranged to Contain SubstringVideo

Solution57.0%Medium

Combinatorics, Dynamic Programming +1· 1 company

2939. Maximum Xor ProductVideo

Solution30.3%Medium

Bit Manipulation, Greedy +1· 4 companies

2947. Count Beautiful Substrings IVideo

Solution60.9%Medium

Enumeration, Hash Table +4· 1 company

2961. Double Modular ExponentiationVideo

Solution47.9%Medium

Array, Math +1· 1 company

2967. Minimum Cost to Make Array EqualindromicVideo

Solution23.4%Medium

Array, Binary Search +3· 1 company

2979. Most Expensive Item That Can Not Be BoughtVideoPremium

Solution80.2%Medium

Dynamic Programming, Math +1· 1 company

3012. Minimize Length of Array Using OperationsVideo

Solution35.7%Medium

Array, Greedy +2· 4 companies

3021. Alice and Bob Playing Flower GameVideo

Solution60.2%Medium

Math· 5 companies

3025. Find the Number of Ways to Place People IVideo

Solution64.0%Medium

Array, Enumeration +3· 4 companies

3044. Most Frequent PrimeVideo

Solution45.5%Medium

Array, Counting +5· 1 company

3047. Find the Largest Area of Square Inside Two RectanglesVideo

Solution66.9%Medium

Array, Geometry +1· 5 companies

3084. Count Substrings Starting and Ending with Given CharacterVideo

Solution50.5%Medium

Counting, Math +1

3091. Apply Operations to Make Sum of Array Greater Than or Equal to kVideo

Solution44.2%Medium

Enumeration, Greedy +1· 2 companies

3100. Water Bottles IIVideo

Solution78.2%Medium

Math, Simulation· 3 companies

Showing 201–250 of 331