Coding Interview Questions

Problem Statement: You are given a number, you need to return the sum of digits. Example: Input: n = 123 Output: 6 Solution Explanation: We…

Problem Statement: You are given a string and a value k. You need to remove k adjacent duplicate from the array. Example: Input: s =…

Problem Statement: You are given an array, you need to generate all sub arrays of the given array Example: Input: arr = {1, 2, 3} Output: [1],…

Problem Statement: You are given a string, you need to remove adjacent duplicate. Example: Input: s = "abbaca" Output: s =…

Problem Statement: You are given a string, you need to find the first upper case letter using recursion. Example: Input: proDeveloperTutorial…

Problem Statement: You are given a number, you need to generate all binary strings that do not have consecutive 1s and in increasing order…

Problem Statement: You are given a LL, you need to find the middle element recursively. Example: Input: 1 -> 2 -> 3 -> 4 -> 5…

Problem Statement: You are given a stack, you need to reverse it using recursion. You are allowed to use all the stack operation Example:…

Problem Statement: You are given a stack, you need to delete the middle element using recursion. Example: Input: s = {1, 2, 3, 4, 5} Output: s…

Problem Statement: Given a decimal number, convert into binary number using recursion Example: Input: n = 7 Output: 111 Solution Explanation:…