Coding Interview Questions

Problem Statement: Given an unsorted array, list all the pairs with a least difference. Example: Input: {5, 4, 3, 2, 1} Output: {1, 2}, {2,…

Problem Explanation: Given an unsorted array, the output should be the minimum difference between the elements and the elements itself.…

Example: Array: {5, 6, 7, 6, 5, 4, 3, 4, 5, 6} Key: 4 Output: The element 4 is found at the index 6. Explanation: We can solve this approach…

Problem Description: Given an array of elements consisting of 0, 1, 2. Sort the array. Example: {1, 2, 0, 0, 1, 2, 1} Output: {0, 0, 1, 1, 1,…

Problem Description: A baby wants to climb the stairs. It can take single step at a time or take 2 steps at a time. Or it can take combination…

Input: [ 3 -> 4 -> 5 ] + [ 1 -> 2-> 3] Output: [ 8 -> 6 -> 4 ] Explanation: 543 + 321 = 8 -> 6 -> 4 Detailed…

Solution Description: This problem can be solved in 2 different ways. Solution 1: Brute Force Technique Explanation: In this technique, we…