Solutions & Explanations

Browse 4,029+ detailed solutions with multiple approaches, code in Python, Java, C++ and more.

4,029 Solutions961 Easy2102 Medium966 Hard

Title	Difficulty	Acceptance	Topics	Solution
2648. Generate Fibonacci Sequence	Easy	83.6%		Read
2651. Calculate Delayed Arrival Time	Easy	75.6%	Math	Read
2652. Sum Multiples	Easy	85.9%	Math	Read
2656. Maximum Sum With Exactly K Elements	Easy	80.6%	Array Greedy	Read
2660. Determine the Winner of a Bowling Game	Easy	37.9%	Array Simulation	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
2677. Chunk Array	Easy	83.8%		Read
2678. Number of Senior Citizens	Easy	81.5%	Array String	Read
2682. Find the Losers of the Circular Game	Easy	50.5%	Array Hash Table+1	Read
2687. Bikes Last Time Used	Easy	80.6%	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
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
2703. Return Length of Arguments Passed	Easy	94.4%		Read
2704. To Be Or Not To Be	Easy	62.6%		Read
2706. Buy Two Chocolates	Easy	68.3%	Array Greedy+1	Read
2710. Remove Trailing Zeros From a String	Easy	79.5%	String	Read
2715. Timeout Cancellation	Easy	89.1%		Read
2716. Minimize String Length	Easy	79.6%	Hash Table String	Read
2717. Semi-Ordered Permutation	Easy	64.2%	Array Simulation	Read
2723. Add Two Promises	Easy	91.5%		Read
2724. Sort By	Easy	82.8%		Read
2725. Interval Cancellation	Easy	82.3%		Read
2726. Calculator with Method Chaining	Easy	76.2%		Read
2727. Is Object Empty	Easy	80.8%		Read
2728. Count Houses in a Circular Street	Easy	86.1%	Array Interactive	Read
2729. Check if The Number is Fascinating	Easy	53.0%	Hash Table Math	Read
2733. Neither Minimum nor Maximum	Easy	76.2%	Array Sorting	Read
2739. Total Distance Traveled	Easy	41.9%	Math Simulation	Read
2744. Find Maximum Number of String Pairs	Easy	82.4%	Array Hash Table+2	Read
2748. Number of Beautiful Pairs	Easy	53.5%	Array Counting+3	Read
2758. Next Day	Easy	84.2%		Read
2760. Longest Even Odd Subarray With Threshold	Easy	32.4%	Array Sliding Window	Read
2765. Longest Alternating Subarray	Easy	35.7%	Array Enumeration	Read
2769. Find the Maximum Achievable Number	Easy	91.3%	Math	Read
2774. Array Upper Bound	Easy	82.0%		Read
2778. Sum of Squares of Special Elements	Easy	82.0%	Array Enumeration	Read
2784. Check if Array is Good	Easy	57.3%	Array Hash Table+1	Read
2788. Split Strings by Separator	Easy	76.1%	Array String	Read
2794. Create Object from Two Arrays	Easy	64.3%		Read
2796. Repeat String	Easy	92.9%		Read
2797. Partial Function with Placeholders	Easy	89.0%		Read
2798. Number of Employees Who Met the Target	Easy	87.7%	Array	Read

#2648Easy

Generate Fibonacci Sequence

Acceptance: 83.6%

#2651Easy

Calculate Delayed Arrival Time

Math

Acceptance: 75.6%

#2652Easy

Sum Multiples

Math

Acceptance: 85.9%

#2656Easy

Maximum Sum With Exactly K Elements

ArrayGreedy

Acceptance: 80.6%

#2660Easy

Determine the Winner of a Bowling Game

ArraySimulation

Acceptance: 37.9%

#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%

#2677Easy

Chunk Array

Acceptance: 83.8%

#2678Easy

Number of Senior Citizens

ArrayString

Acceptance: 81.5%

#2682Easy

Find the Losers of the Circular Game

ArrayHash TableSimulation

Acceptance: 50.5%

#2687Easy

Bikes Last Time Used

Database

Acceptance: 80.6%

#2689Easy

Extract Kth Character From The Rope Tree

Binary TreeDepth-First SearchTree

Acceptance: 73.4%

#2690Easy

Infinite Method Object

Acceptance: 92.3%

#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%

#2703Easy

Return Length of Arguments Passed

Acceptance: 94.4%

#2704Easy

To Be Or Not To Be

Acceptance: 62.6%

#2706Easy

Buy Two Chocolates

ArrayGreedySorting

Acceptance: 68.3%

#2710Easy

Remove Trailing Zeros From a String

String

Acceptance: 79.5%

#2715Easy

Timeout Cancellation

Acceptance: 89.1%

#2716Easy

Minimize String Length

Hash TableString

Acceptance: 79.6%

#2717Easy

Semi-Ordered Permutation

ArraySimulation

Acceptance: 64.2%

#2723Easy

Add Two Promises

Acceptance: 91.5%

#2724Easy

Sort By

Acceptance: 82.8%

#2725Easy

Interval Cancellation

Acceptance: 82.3%

#2726Easy

Calculator with Method Chaining

Acceptance: 76.2%

#2727Easy

Is Object Empty

Acceptance: 80.8%

#2728Easy

Count Houses in a Circular Street

ArrayInteractive

Acceptance: 86.1%

#2729Easy

Check if The Number is Fascinating

Hash TableMath

Acceptance: 53.0%

#2733Easy

Neither Minimum nor Maximum

ArraySorting

Acceptance: 76.2%

#2739Easy

Total Distance Traveled

MathSimulation

Acceptance: 41.9%

#2744Easy

Find Maximum Number of String Pairs

ArrayHash TableSimulation+1

Acceptance: 82.4%

#2748Easy

Number of Beautiful Pairs

ArrayCountingHash Table+2

Acceptance: 53.5%

#2758Easy

Next Day

Acceptance: 84.2%

#2760Easy

Longest Even Odd Subarray With Threshold

ArraySliding Window

Acceptance: 32.4%

#2765Easy

Longest Alternating Subarray

ArrayEnumeration

Acceptance: 35.7%

#2769Easy

Find the Maximum Achievable Number

Math

Acceptance: 91.3%

#2774Easy

Array Upper Bound

Acceptance: 82.0%

#2778Easy

Sum of Squares of Special Elements

ArrayEnumeration

Acceptance: 82.0%

#2784Easy

Check if Array is Good

ArrayHash TableSorting

Acceptance: 57.3%

#2788Easy

Split Strings by Separator

ArrayString

Acceptance: 76.1%

#2794Easy

Create Object from Two Arrays

Acceptance: 64.3%

#2796Easy

Repeat String

Acceptance: 92.9%

#2797Easy

Partial Function with Placeholders

Acceptance: 89.0%

#2798Easy

Number of Employees Who Met the Target

Array

Acceptance: 87.7%

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Master DSA with Step-by-Step Solutions

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