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Tag Archives: frequency-counting

Given an array arr[] consisting of N integers, the task is to check if the sum of K most frequent array elements and the sum… Read More
Given a string str containing characters ‘G’ and ‘F’ only, the task is to check if the given string str can be made empty after… Read More
Given two strings str1 of size N and str2 of size M.The task is to find if it is possible to compose str2 by using… Read More
Given encoded string str such that ‘a’ is written 1 time, ‘b’ is written 2 times, and so on, until ‘z’ is written 26 times,… Read More
Given a string S of size N representing a monoalphabetic cipher, the task is to print the top five possible plain texts that can be… Read More
Given an array arr[] of N integers, and an array Q[] of M pairs, where a pair represents a query of the form {L, R},… Read More
Given two binary arrays, A[] and B[] of size N respectively, the task is to find the number of elements in array A[] that will… Read More
Given a sorted array, arr[] consisting of N integers, the task is to find the frequencies of each array element. Examples:  Input: arr[] = {1,… Read More
Given an array, arr[] of N strings and a string T of size M, the task is to check if it is possible to make… Read More
Given a string S consisting of N lowercase English alphabets, and an integer K and, an array cost[] of size 26 denoting the cost of… Read More
Given an array arr[] consisting of N positive integers and a positive integer X, the task is to find the number of pairs (i, j)… Read More
Given an array, arr[] consisting of N strings where each character of the string is lower case English alphabet, the task is to store and… Read More
Given a string S of length N, where each character of the string is either equal to ‘L’, ‘R’ or ‘?’, the task is to… Read More
Given a string S consisting of N digits from [1, 9] and a positive integer K and X. Every day each character of the string… Read More
Given an array arr[] of N integers, the task is to find the maximum prefix length of the array such that removing exactly one element… Read More