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
466 Find All Numbers Disappeared in an Array Easy
ArrayHash Table
467 Find All Possible Recipes from Given Supplies Medium
ArrayHash TableString
468 Find Anagram Mappings Easy
ArrayHash Table
469 Find And Replace in String Medium
ArrayHash TableString
470 Find and Replace Pattern Medium
ArrayHash TableString
471 Find Array Given Subset Sums Hard
ArrayDivide and Conquer
472 Find Building Where Alice and Bob Can Meet Hard
ArrayBinary SearchStack
473 Find Champion I Easy
ArrayMatrix
474 Find Closest Number to Zero Easy
Array
475 Find Common Characters Easy
ArrayHash TableString
476 Find Common Elements Between Two Arrays Easy
ArrayHash Table
477 Find Duplicate File in System Medium
ArrayHash TableString
478 Find First and Last Position of Element in Sorted Array Medium
ArrayBinary Search
479 Find First Palindromic String in the Array Easy
ArrayTwo PointersString
480 Find Good Days to Rob the Bank Medium
ArrayDynamic ProgrammingPrefix Sum
Showing 466-480 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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