# Tag Archives: Permutation and Combination

Given an array, the task is to print or display all the reverse permutations of this array using STL in C++. Reverse permutation means, for… Read More
Given the NxN grid of horizontal and vertical roads. The task is to find out the number of ways that the person can go from… Read More
Given an array, the task is to print or display all the permutations of this array using STL in C++. Examples: Input: a[] = {1,… Read More
Given two numbers K and N, the task is to find the number of ways such that an item at position i returns back to… Read More
The problem is to count all the possible paths from top left to bottom right of an m*n matrix with the constraints that from each… Read More
Given a string str, the task is to print all the permutations of str. A permutation is an arrangement of all or part of a… Read More
There are 1000 light bulbs and 1000 persons. All light bulbs are initially off. Person 1 goes flipping light bulb 1, 2, 3, 4, …… Read More
Given n, r and K. The task is to find the number of permutations of different things taken at a time such that specific things always occur together.Examples:  … Read More
Given a positive integer N and K where  and  . The task is to check whether any permutation of digits of N equals any power… Read More
Given two arrays A and B of equal size. The task is to print any permutation of array A such that the number of indices… Read More
Given a string ‘s’ and a character ‘c’, the task is to find the number of permutations of the string in which all the occurrences… Read More
Given n companies and m oil mines having values, the task is to distribute the mines among n companies in a fair manner. That is… Read More
Given two singly Linked list of integer data. The task is to write a program that efficiently checks if two linked lists are permutations of… Read More
Given two numbers n, r ( n>=r ). The task is to find the value of C(n, r) for big value of n. Examples:  Input:… Read More
Given N, the number of persons. The task is to arrange N person around a circular table.Examples:   Input: N = 4 Output: 6 Input: N… Read More