## Largest divisible pairs subset

Given an array of n distinct elements, find length of the largest subset such that every pair in the subset is such that the larger… Read More »

Given an array of n distinct elements, find length of the largest subset such that every pair in the subset is such that the larger… Read More »

Consider a n*n matrix. Suppose each cell in the matrix has a value assigned. We can go from each cell in row i to a… Read More »

Given two strings X and Y consisting of only digits ‘0’ to ‘9’. Find minimum cost required to make the given two strings identical. Only… Read More »

This is an extended version of subset sum problem. Here we need to find size of maximum size subset whose sum is equal to given… Read More »

Given a matrix containing an integer value, In which each cell of the matrix represents height of building. Find minimum jumps needed reach from First… Read More »

Given n, find count of n digit Stepping numbers. A number is called stepping number if all adjacent digits have an absolute difference of 1.… Read More »

Given a sequence, print a longest palindromic subsequence of it. Examples : Input : BBABCBCAB Output : BABCBAB The above output is the longest palindromic… Read More »

Given an array of positive distinct integer denoting the crossing time of ‘n’ people. These ‘n’ people are standing at one side of bridge. Bridge… Read More »

We have to paint n boards of length {A1, A2…An}. There are k painters available and each takes 1 unit time to paint 1 unit… Read More »

Given a number of at most 100 digits. We have to check if it is possible, after removing certain digits, to obtain a number of… Read More »

Given a 2D array, find the minimum sum submatrix in it. Examples: Input : M[][] = {{1, 2, -1, -4, -20}, {-8, -3, 4, 2,… Read More »

Given an array and a number k, find a subsequence such that Sum of elements in subsequence is maximum Indices of elements of subsequence differ… Read More »

Given an array of n integers and q queries, print the number of next greater elements to the right of the given index element. Examples:… Read More »

Given a string S, find the length of longest balanced subsequence in it. A balanced string is defined as:- A Null string is a balanced… Read More »

A stable tower of height n is a tower consisting of exactly n tiles of unit height stacked vertically in such a way, that no… Read More »