Sliding Window Coding Problems

Optimize with window-based approaches

154
Total Problems
18
Easy
92
Medium
43
Hard
Start Practicing
slide →

Master DSA Topics - January, 2026

Practice problems across 75+ categories

Sliding Window Coding Problems

Practice problems frequently asked at Sliding Window 154 problems | 18 Easy | 92 Medium | 43 Hard

# Problem Difficulty Topics
16 Count of Substrings Containing Every Vowel and K Consonants I Medium
Hash TableStringSliding Window
17 Count of Substrings Containing Every Vowel and K Consonants II Medium
Hash TableStringSliding Window
18 Count Partitions With Max-Min Difference at Most K Medium
ArrayDynamic ProgrammingQueue
19 Count Prime-Gap Balanced Subarrays Medium
ArrayMathQueue
20 Count Subarrays Where Max Element Appears at Least K Times Medium
ArraySliding Window
21 Count Subarrays With Fixed Bounds Hard
ArrayQueueSliding Window
22 Count Subarrays With Score Less Than K Hard
ArrayBinary SearchSliding Window
23 Count Substrings That Can Be Rearranged to Contain a String I Medium
Hash TableStringSliding Window
24 Count Substrings That Can Be Rearranged to Contain a String II Hard
Hash TableStringSliding Window
25 Count Substrings That Satisfy K-Constraint I Easy
StringSliding Window
26 Count Substrings That Satisfy K-Constraint II Hard
ArrayStringBinary Search
27 Count Substrings With K-Frequency Characters I Medium
Hash TableStringSliding Window
28 Count Substrings With K-Frequency Characters II Hard
Hash TableStringSliding Window
29 Count Substrings Without Repeating Character Medium
Hash TableStringSliding Window
30 Count the Number of Good Subarrays Medium
ArrayHash TableSliding Window
Showing 16-30 of 154
1 2 3 4 ... 11

Tutorials Library

Master any technology with our largest free online Library. Browse through 500+ tutorials across 10+ categories.

Python

Python Tutorial

Java

Java Tutorial

JavaScript

JavaScript

C++

C++ Tutorial

C#

C# Tutorial

Go

Go Tutorial

Rust

Rust Tutorial

TypeScript

TypeScript

Swift

Swift Tutorial

Kotlin

Kotlin Tutorial

Ruby

Ruby Tutorial

PHP

PHP Tutorial

C

C Tutorial

Scala

Scala Tutorial

Perl

Perl Tutorial

R

R Tutorial

Dart

Dart Tutorial

Lua

Lua Tutorial

MATLAB

MATLAB

Haskell

Haskell

Developer Toolbox

Powerful online tools to boost your productivity

public class MyFirstJavaProgram { Edit & Run

   /* This is my first java program.
    * This will print 'Hello, World!' as the output
    */

   public static void main(String []args) {
      System.out.println("Hello, World!"); // prints
   }
}

Start Coding in Seconds

Coding Ground For Developers

Code, Edit, Run and Share

Ignite your coding potential on Coding Ground - an immersive online platform for hands-on learning, collaboration, and skill development.