## Minimum Index Sum for Common Elements of Two Lists

Ram and Shyam want to choose a website to learn programming and they both have a list of favorite websites represented by strings. You need… Read More »

Ram and Shyam want to choose a website to learn programming and they both have a list of favorite websites represented by strings. You need… Read More »

Given a read only array of size ( n+1 ), find one of the multiple repeating elements in the array where the array contains integers… Read More »

This article focus on : Compare and contrast Hash table and an STL Map. How is the hash table implemented? If the number of inputs… Read More »

Given an array and a sum value, find all possible unique triplets in that array whose sum is equal to the given sum value. If… Read More »

Given a string of lowercase letters. Find minimum characters to be inserted in string so that it can become palindrome. We can change positions of… Read More »

Given an array of integers, Check if there exist four elements at different indexes in the array whose sum is equal to a given value… Read More »

Given four sorted arrays each of size n of distinct elements. Given a value x. The problem is to count all quadruples(group of four numbers)… Read More »

Given two linked lists(can be sorted or unsorted) of size n1 and n2 of distinct elements. Given a value x. The problem is to count… Read More »

Given a set of n nuts of different sizes and n bolts of different sizes. There is a one-one mapping between nuts and bolts. Match… Read More »

Given an array of distinct integers(considering only positive numbers) and a number ‘m’, find the number of triplets with product equal to ‘m’. Examples: Input… Read More »

Given a sequence of strings, the task is to find out the second most repeated (or frequent) string in the given sequence.(Considering no two words… Read More »

Given an array of n numbers and a positive integer k. The problem is to find k numbers with most occurrences, i.e., the top k… Read More »

Given an array with distinct elements, the task is to find the pairs in the array such that a % b = k, where k… Read More »

Given two sorted arrays of size m and n of distinct elements. Given a value x. The problem is to count all pairs from both… Read More »

Given an array of n integers. Count total number of sub-array having total distinct elements same as that of total distinct elements of original array.… Read More »