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
2803. Factorial Generator	Easy	85.8%		Read
2804. Array Prototype ForEach	Easy	88.2%		Read
2806. Account Balance After Rounded Purchase	Easy	58.0%	Math	Read
2810. Faulty Keyboard	Easy	80.7%	Simulation String	Read
2815. Max Pair Sum in an Array	Easy	61.1%	Array Hash Table	Read
2822. Inversion of Object	Easy	58.8%		Read
2824. Count Pairs Whose Sum is Less than Target	Easy	87.4%	Array Binary Search+2	Read
2828. Check if a String Is an Acronym of Words	Easy	82.8%	Array String	Read
2833. Furthest Point From Origin	Easy	77.2%	Counting String	Read
2837. Total Traveled Distance	Easy	76.1%	Database	Read
2839. Check if Strings Can be Made Equal With Operations I	Easy	61.8%	String	Read
2843. Count Symmetric Integers	Easy	83.1%	Enumeration Math	Read
2848. Points That Intersect With Cars	Easy	73.4%	Array Hash Table+1	Read
2853. Highest Salaries Difference	Easy	73.5%	Database	Read
2855. Minimum Right Shifts to Sort the Array	Easy	57.6%	Array	Read
2859. Sum of Values at Indices With K Set Bits	Easy	86.0%	Array Bit Manipulation	Read
2864. Maximum Odd Binary Number	Easy	83.0%	Greedy Math+1	Read
2869. Minimum Operations to Collect Elements	Easy	62.2%	Array Bit Manipulation+1	Read
2873. Maximum Value of an Ordered Triplet I	Easy	58.2%	Array	Read
2877. Create a DataFrame from List	Easy	81.3%		Read
2878. Get the Size of a DataFrame	Easy	85.0%		Read
2879. Display the First Three Rows	Easy	93.0%		Read
2880. Select Data	Easy	79.2%		Read
2881. Create a New Column	Easy	90.1%		Read
2882. Drop Duplicate Rows	Easy	85.6%		Read
2883. Drop Missing Data	Easy	64.1%		Read
2884. Modify Columns	Easy	92.2%		Read
2885. Rename Columns	Easy	85.4%		Read
2886. Change Data Type	Easy	87.3%		Read
2887. Fill Missing Data	Easy	72.0%		Read
2888. Reshape Data: Concatenate	Easy	90.6%		Read
2889. Reshape Data: Pivot	Easy	82.9%		Read
2890. Reshape Data: Melt	Easy	86.1%		Read
2891. Method Chaining	Easy	76.3%		Read
2894. Divisible and Non-divisible Sums Difference	Easy	91.0%	Math	Read
2899. Last Visited Integers	Easy	62.2%	Array Simulation	Read
2900. Longest Unequal Adjacent Groups Subsequence I	Easy	67.0%	Array Dynamic Programming+2	Read
2903. Find Indices With Index and Value Difference I	Easy	60.2%	Array Two Pointers	Read
2908. Minimum Sum of Mountain Triplets I	Easy	67.3%	Array	Read
2913. Subarrays Distinct Element Sum of Squares I	Easy	80.1%	Array Hash Table	Read
2917. Find the K-or of an Array	Easy	72.1%	Array Bit Manipulation	Read
2923. Find Champion I	Easy	73.3%	Array Matrix	Read
2928. Distribute Candies Among Children I	Easy	75.7%	Combinatorics Enumeration+1	Read
2932. Maximum Strong Pair XOR I	Easy	76.0%	Array Bit Manipulation+3	Read
2937. Make Three Strings Equal	Easy	45.3%	String	Read
2942. Find Words Containing Character	Easy	90.4%	Array String	Read
2946. Matrix Similarity After Cyclic Shifts	Easy	74.3%	Array Math+2	Read
2951. Find the Peaks	Easy	75.5%	Array Enumeration	Read
2956. Find Common Elements Between Two Arrays	Easy	84.5%	Array Hash Table	Read
2960. Count Tested Devices After Test Operations	Easy	78.8%	Array Counting+1	Read

#2803Easy

Factorial Generator

Acceptance: 85.8%

#2804Easy

Array Prototype ForEach

Acceptance: 88.2%

#2806Easy

Account Balance After Rounded Purchase

Math

Acceptance: 58.0%

#2810Easy

Faulty Keyboard

SimulationString

Acceptance: 80.7%

#2815Easy

Max Pair Sum in an Array

ArrayHash Table

Acceptance: 61.1%

#2822Easy

Inversion of Object

Acceptance: 58.8%

#2824Easy

Count Pairs Whose Sum is Less than Target

ArrayBinary SearchSorting+1

Acceptance: 87.4%

#2828Easy

Check if a String Is an Acronym of Words

ArrayString

Acceptance: 82.8%

#2833Easy

Furthest Point From Origin

CountingString

Acceptance: 77.2%

#2837Easy

Total Traveled Distance

Database

Acceptance: 76.1%

#2839Easy

Check if Strings Can be Made Equal With Operations I

String

Acceptance: 61.8%

#2843Easy

Count Symmetric Integers

EnumerationMath

Acceptance: 83.1%

#2848Easy

Points That Intersect With Cars

ArrayHash TablePrefix Sum

Acceptance: 73.4%

#2853Easy

Highest Salaries Difference

Database

Acceptance: 73.5%

#2855Easy

Minimum Right Shifts to Sort the Array

Array

Acceptance: 57.6%

#2859Easy

Sum of Values at Indices With K Set Bits

ArrayBit Manipulation

Acceptance: 86.0%

#2864Easy

Maximum Odd Binary Number

GreedyMathString

Acceptance: 83.0%

#2869Easy

Minimum Operations to Collect Elements

ArrayBit ManipulationHash Table

Acceptance: 62.2%

#2873Easy

Maximum Value of an Ordered Triplet I

Array

Acceptance: 58.2%

#2877Easy

Create a DataFrame from List

Acceptance: 81.3%

#2878Easy

Get the Size of a DataFrame

Acceptance: 85.0%

#2879Easy

Display the First Three Rows

Acceptance: 93.0%

#2880Easy

Select Data

Acceptance: 79.2%

#2881Easy

Create a New Column

Acceptance: 90.1%

#2882Easy

Drop Duplicate Rows

Acceptance: 85.6%

#2883Easy

Drop Missing Data

Acceptance: 64.1%

#2884Easy

Modify Columns

Acceptance: 92.2%

#2885Easy

Rename Columns

Acceptance: 85.4%

#2886Easy

Change Data Type

Acceptance: 87.3%

#2887Easy

Fill Missing Data

Acceptance: 72.0%

#2888Easy

Reshape Data: Concatenate

Acceptance: 90.6%

#2889Easy

Reshape Data: Pivot

Acceptance: 82.9%

#2890Easy

Reshape Data: Melt

Acceptance: 86.1%

#2891Easy

Method Chaining

Acceptance: 76.3%

#2894Easy

Divisible and Non-divisible Sums Difference

Math

Acceptance: 91.0%

#2899Easy

Last Visited Integers

ArraySimulation

Acceptance: 62.2%

#2900Easy

Longest Unequal Adjacent Groups Subsequence I

ArrayDynamic ProgrammingGreedy+1

Acceptance: 67.0%

#2903Easy

Find Indices With Index and Value Difference I

ArrayTwo Pointers

Acceptance: 60.2%

#2908Easy

Minimum Sum of Mountain Triplets I

Array

Acceptance: 67.3%

#2913Easy

Subarrays Distinct Element Sum of Squares I

ArrayHash Table

Acceptance: 80.1%

#2917Easy

Find the K-or of an Array

ArrayBit Manipulation

Acceptance: 72.1%

#2923Easy

Find Champion I

ArrayMatrix

Acceptance: 73.3%

#2928Easy

Distribute Candies Among Children I

CombinatoricsEnumerationMath

Acceptance: 75.7%

#2932Easy

Maximum Strong Pair XOR I

ArrayBit ManipulationHash Table+2

Acceptance: 76.0%

#2937Easy

Make Three Strings Equal

String

Acceptance: 45.3%

#2942Easy

Find Words Containing Character

ArrayString

Acceptance: 90.4%

#2946Easy

Matrix Similarity After Cyclic Shifts

ArrayMathMatrix+1

Acceptance: 74.3%

#2951Easy

Find the Peaks

ArrayEnumeration

Acceptance: 75.5%

#2956Easy

Find Common Elements Between Two Arrays

ArrayHash Table

Acceptance: 84.5%

#2960Easy

Count Tested Devices After Test Operations

ArrayCountingSimulation

Acceptance: 78.8%

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