Array Coding Problems

Master array manipulation and traversal techniques

1947
Total Problems
398
Easy
1049
Medium
497
Hard
Start Practicing
0123

Master DSA Topics - January, 2026

Practice problems across 75+ categories

Array Coding Problems

Practice problems frequently asked at Array 1947 problems | 398 Easy | 1049 Medium | 497 Hard

# Problem Difficulty Topics
1 01 Matrix Medium
ArrayDynamic ProgrammingBreadth-First Search
2 1-bit and 2-bit Characters Easy
Array
3 132 Pattern Medium
ArrayBinary SearchStack
4 24 Game Hard
ArrayMathBacktracking
5 3Sum Medium
ArrayTwo PointersSorting
6 3Sum Closest Medium
ArrayTwo PointersSorting
7 3Sum Smaller Medium
ArrayTwo PointersBinary Search
8 3Sum With Multiplicity Medium
ArrayHash TableTwo Pointers
9 4Sum Medium
ArrayTwo PointersSorting
10 4Sum II Medium
ArrayHash Table
11 Add Bold Tag in String Medium
ArrayHash TableString
12 Add Minimum Number of Rungs Medium
ArrayGreedy
13 Add to Array-Form of Integer Easy
ArrayMath
14 Adding Spaces to a String Medium
ArrayTwo PointersString
15 Adding Two Negabinary Numbers Medium
ArrayMath
Showing 1-15 of 1947
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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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