Solutions & Explanations

Browse 4,030+ detailed solutions with multiple approaches, code in Python, Java, C++ and more.

4,030 Solutions961 Easy2102 Medium967 Hard

Title	Difficulty	Acceptance	Topics	Solution
2651. Calculate Delayed Arrival Time	Easy	75.6%	Math	Read
2652. Sum Multiples	Easy	85.9%	Math	Read
2653. Sliding Subarray Beauty	Medium	37.8%	Array Hash Table+1	Read
2654. Minimum Number of Operations to Make All Array Elements Equal to 1	Medium	54.7%	Array Math+1	Read
2655. Find Maximal Uncovered Ranges	Medium	49.9%	Array Sorting	Read
2656. Maximum Sum With Exactly K Elements	Easy	80.6%	Array Greedy	Read
2657. Find the Prefix Common Array of Two Arrays	Medium	88.3%	Array Bit Manipulation+1	Read
2658. Maximum Number of Fish in a Grid	Medium	70.5%	Array Breadth-First Search+3	Read
2659. Make Array Empty	Hard	27.4%	Array Binary Indexed Tree+5	Read
2660. Determine the Winner of a Bowling Game	Easy	37.9%	Array Simulation	Read
2661. First Completely Painted Row or Column	Medium	63.9%	Array Hash Table+1	Read
2662. Minimum Cost of a Path With Special Roads	Medium	43.9%	Array Graph+2	Read
2663. Lexicographically Smallest Beautiful String	Hard	38.7%	Greedy String	Read
2664. The Knight’s Tour	Medium	72.7%	Array Backtracking+1	Read
2665. Counter II	Easy	80.5%		Read
2666. Allow One Function Call	Easy	86.6%		Read
2667. Create Hello World Function	Easy	81.6%		Read
2668. Find Latest Salaries	Easy	73.4%	Database	Read
2669. Count Artist Occurrences On Spotify Ranking List	Easy	73.3%	Database	Read
2670. Find the Distinct Difference Array	Easy	77.1%	Array Hash Table	Read
2671. Frequency Tracker	Medium	31.6%	Design Hash Table	Read
2672. Number of Adjacent Elements With the Same Color	Medium	59.8%	Array	Read
2673. Make Costs of Paths Equal in a Binary Tree	Medium	59.1%	Array Binary Tree+3	Read
2674. Split a Circular Linked List	Medium	78.1%	Linked List Two Pointers	Read
2675. Array of Objects to Matrix	Hard	68.4%		Read
2676. Throttle	Medium	82.9%		Read
2677. Chunk Array	Easy	83.8%		Read
2678. Number of Senior Citizens	Easy	81.5%	Array String	Read
2679. Sum in a Matrix	Medium	61.1%	Array Heap (Priority Queue)+3	Read
2680. Maximum OR	Medium	43.5%	Array Bit Manipulation+2	Read
2681. Power of Heroes	Hard	32.0%	Array Dynamic Programming+3	Read
2682. Find the Losers of the Circular Game	Easy	50.5%	Array Hash Table+1	Read
2683. Neighboring Bitwise XOR	Medium	79.8%	Array Bit Manipulation	Read
2684. Maximum Number of Moves in a Grid	Medium	58.6%	Array Dynamic Programming+1	Read
2685. Count the Number of Complete Components	Medium	80.8%	Breadth-First Search Depth-First Search+2	Read
2686. Immediate Food Delivery III	Medium	68.2%	Database	Read
2687. Bikes Last Time Used	Easy	80.6%	Database	Read
2688. Find Active Users	Medium	43.4%	Database	Read
2689. Extract Kth Character From The Rope Tree	Easy	73.4%	Binary Tree Depth-First Search+1	Read
2690. Infinite Method Object	Easy	92.3%		Read
2691. Immutability Helper	Hard	42.1%		Read
2692. Make Object Immutable	Medium	64.5%		Read
2693. Call Function with Custom Context	Medium	79.0%		Read
2694. Event Emitter	Medium	74.1%		Read
2695. Array Wrapper	Easy	88.6%		Read
2696. Minimum String Length After Removing Substrings	Easy	77.5%	Simulation Stack+1	Read
2697. Lexicographically Smallest Palindrome	Easy	81.4%	Greedy String+1	Read
2698. Find the Punishment Number of an Integer	Medium	81.7%	Backtracking Math	Read
2699. Modify Graph Edge Weights	Hard	55.6%	Graph Heap (Priority Queue)+1	Read
2700. Differences Between Two Objects	Medium	75.2%		Read

#2651Easy

Calculate Delayed Arrival Time

Math

Acceptance: 75.6%

#2652Easy

Sum Multiples

Math

Acceptance: 85.9%

#2653Medium

Sliding Subarray Beauty

ArrayHash TableSliding Window

Acceptance: 37.8%

#2654Medium

Minimum Number of Operations to Make All Array Elements Equal to 1

ArrayMathNumber Theory

Acceptance: 54.7%

#2655Medium

Find Maximal Uncovered Ranges

ArraySorting

Acceptance: 49.9%

#2656Easy

Maximum Sum With Exactly K Elements

ArrayGreedy

Acceptance: 80.6%

#2657Medium

Find the Prefix Common Array of Two Arrays

ArrayBit ManipulationHash Table

Acceptance: 88.3%

#2658Medium

Maximum Number of Fish in a Grid

ArrayBreadth-First SearchDepth-First Search+2

Acceptance: 70.5%

#2659Hard

Make Array Empty

ArrayBinary Indexed TreeBinary Search+4

Acceptance: 27.4%

#2660Easy

Determine the Winner of a Bowling Game

ArraySimulation

Acceptance: 37.9%

#2661Medium

First Completely Painted Row or Column

ArrayHash TableMatrix

Acceptance: 63.9%

#2662Medium

Minimum Cost of a Path With Special Roads

ArrayGraphHeap (Priority Queue)+1

Acceptance: 43.9%

#2663Hard

Lexicographically Smallest Beautiful String

GreedyString

Acceptance: 38.7%

#2664Medium

The Knight’s Tour

ArrayBacktrackingMatrix

Acceptance: 72.7%

#2665Easy

Counter II

Acceptance: 80.5%

#2666Easy

Allow One Function Call

Acceptance: 86.6%

#2667Easy

Create Hello World Function

Acceptance: 81.6%

#2668Easy

Find Latest Salaries

Database

Acceptance: 73.4%

#2669Easy

Count Artist Occurrences On Spotify Ranking List

Database

Acceptance: 73.3%

#2670Easy

Find the Distinct Difference Array

ArrayHash Table

Acceptance: 77.1%

#2671Medium

Frequency Tracker

DesignHash Table

Acceptance: 31.6%

#2672Medium

Number of Adjacent Elements With the Same Color

Array

Acceptance: 59.8%

#2673Medium

Make Costs of Paths Equal in a Binary Tree

ArrayBinary TreeDynamic Programming+2

Acceptance: 59.1%

#2674Medium

Split a Circular Linked List

Linked ListTwo Pointers

Acceptance: 78.1%

#2675Hard

Array of Objects to Matrix

Acceptance: 68.4%

#2676Medium

Throttle

Acceptance: 82.9%

#2677Easy

Chunk Array

Acceptance: 83.8%

#2678Easy

Number of Senior Citizens

ArrayString

Acceptance: 81.5%

#2679Medium

Sum in a Matrix

ArrayHeap (Priority Queue)Matrix+2

Acceptance: 61.1%

#2680Medium

Maximum OR

ArrayBit ManipulationGreedy+1

Acceptance: 43.5%

#2681Hard

Power of Heroes

ArrayDynamic ProgrammingMath+2

Acceptance: 32.0%

#2682Easy

Find the Losers of the Circular Game

ArrayHash TableSimulation

Acceptance: 50.5%

#2683Medium

Neighboring Bitwise XOR

ArrayBit Manipulation

Acceptance: 79.8%

#2684Medium

Maximum Number of Moves in a Grid

ArrayDynamic ProgrammingMatrix

Acceptance: 58.6%

#2685Medium

Count the Number of Complete Components

Breadth-First SearchDepth-First SearchGraph+1

Acceptance: 80.8%

#2686Medium

Immediate Food Delivery III

Database

Acceptance: 68.2%

#2687Easy

Bikes Last Time Used

Database

Acceptance: 80.6%

#2688Medium

Find Active Users

Database

Acceptance: 43.4%

#2689Easy

Extract Kth Character From The Rope Tree

Binary TreeDepth-First SearchTree

Acceptance: 73.4%

#2690Easy

Infinite Method Object

Acceptance: 92.3%

#2691Hard

Immutability Helper

Acceptance: 42.1%

#2692Medium

Make Object Immutable

Acceptance: 64.5%

#2693Medium

Call Function with Custom Context

Acceptance: 79.0%

#2694Medium

Event Emitter

Acceptance: 74.1%

#2695Easy

Array Wrapper

Acceptance: 88.6%

#2696Easy

Minimum String Length After Removing Substrings

SimulationStackString

Acceptance: 77.5%

#2697Easy

Lexicographically Smallest Palindrome

GreedyStringTwo Pointers

Acceptance: 81.4%

#2698Medium

Find the Punishment Number of an Integer

BacktrackingMath

Acceptance: 81.7%

#2699Hard

Modify Graph Edge Weights

GraphHeap (Priority Queue)Shortest Path

Acceptance: 55.6%

#2700Medium

Differences Between Two Objects

Acceptance: 75.2%

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Master DSA with Step-by-Step Solutions

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