# Tag Archives: Constructive Algorithms

Given two strings S1 and S2 of length N and a positive integer K, the task is to find the lexicographically smallest string such that… Read More
Given an integer array arr[] of consisting of N integers, the task is check if it is possible to divide the given array into K… Read More
Given an array arr[] of N positive integers, the task is to find the count of indices i such that all the elements from arr… Read More
Given a binary array arr[] of size N. The task is to find the minimum number of inversions required so that no two adjacent elements… Read More
Given two strings A and B of length N, the task is to check whether the two strings can be made equal by swapping any… Read More
Given a number N, the task is to form N (from 0) by adding 1 or 2 in the minimum number of operations X such… Read More
Given a string str, the task is to make the string start and end at the same character with the minimum number of given operations.… Read More
Given an array arr[] of N integers with total element sum equal to zero. The task is to reduce every element to it’s half such… Read More
Given two string S1 and S2, the task is to check whether both the strings can be made equal by performing the given operation on… Read More
Given two numbers X and Y of the same length, the task is to find the minimum number d that needs to be added to… Read More
Given two integers N and M, where N is the number of friends sitting in a clockwise manner in a circle and M is the… Read More
Given a stack of integers and an integer K, the task is to sort the elements of the given stack using another stack in the… Read More
Given an array arr[] of size N, the task is to check if it is possible to make the array non-decreasing by applying the given… Read More
Given an array arr[] of size N. The task is to find maximum element among N – 1 elements other than arr[i] for each i… Read More
Given two integers N and K, the task is to find the element at the Kth position if all odd numbers from 1 to N… Read More