String Coding Problems

Learn string processing and pattern matching

803
Total Problems
228
Easy
390
Medium
177
Hard
Start Practicing
"Hello"

Master DSA Topics - January, 2026

Practice problems across 75+ categories

String Coding Problems

Practice problems frequently asked at String 803 problems | 228 Easy | 390 Medium | 177 Hard

# Problem Difficulty Topics
511 Number of Days Between Two Dates Easy
MathString
512 Number of Different Integers in a String Easy
Hash TableString
513 Number of Distinct Binary Strings After Applying Operations Medium
MathString
514 Number of Distinct Substrings in a String Unknown
StringTrieRolling Hash
515 Number of Divisible Substrings Medium
Hash TableStringCounting
516 Number of Equal Count Substrings Medium
Hash TableStringSliding Window
517 Number of Good Ways to Split a String Medium
Hash TableStringDynamic Programming
518 Number of Laser Beams in a Bank Medium
ArrayMathString
519 Number of Lines To Write String Easy
ArrayString
520 Number of Matching Subsequences Medium
ArrayHash TableString
521 Number of Pairs of Strings With Concatenation Equal to Target Medium
ArrayHash TableString
522 Number of Same-End Substrings Medium
ArrayHash TableString
523 Number of Segments in a String Easy
String
524 Number of Senior Citizens Easy
ArrayString
525 Number of Steps to Reduce a Number in Binary Representation to One Medium
StringBit ManipulationSimulation
Showing 511-525 of 803
1 ... 33 34 35 36 37 ... 54

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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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