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
121 Cells with Odd Values in a Matrix Easy
ArrayMathSimulation
122 Chalkboard XOR Game Hard
ArrayMathBit Manipulation
123 Check Array Formation Through Concatenation Easy
ArrayHash Table
124 Check Distances Between Same Letters Easy
ArrayHash TableString
125 Check for Contradictions in Equations Hard
ArrayDepth-First SearchUnion Find
126 Check If a Number Is Majority Element in a Sorted Array Easy
ArrayBinary Search
127 Check if a String Is an Acronym of Words Easy
ArrayString
128 Check If All 1's Are at Least Length K Places Away Easy
Array
129 Check if All the Integers in a Range Are Covered Easy
ArrayHash TablePrefix Sum
130 Check if an Array Is Consecutive Easy
ArrayHash TableSorting
131 Check if Any Element Has Prime Frequency Easy
ArrayHash TableMath
132 Check if Array is Good Easy
ArrayHash TableSorting
133 Check if Array Is Sorted and Rotated Easy
Array
134 Check If Array Pairs Are Divisible by k Medium
ArrayHash TableCounting
135 Check if Bitwise OR Has Trailing Zeros Easy
ArrayBit Manipulation
Showing 121-135 of 1947
1 ... 7 8 9 10 11 ... 130

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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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