Sliding Window Coding Problems

Optimize with window-based approaches

154
Total Problems
18
Easy
92
Medium
43
Hard
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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
151 Substring with Concatenation of All Words Hard
Hash TableStringSliding Window
152 Substrings of Size Three with Distinct Characters Easy
Hash TableStringSliding Window
153 Swap For Longest Repeated Character Substring Medium
Hash TableStringSliding Window
154 Take K of Each Character From Left and Right Medium
Hash TableStringSliding Window
Showing 151-154 of 154
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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
   }
}

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