Find the minimum number of preprocess moves required to make two strings equal
Given two strings A and B of equal lengths consisting of lower case English letters. The task is to count the minimum number of pre-processing… Read More »
Category Archives: Strings
Check if the given string is the same as its reflection in a mirror
Given a string S containing only uppercase English characters. The task is to find whether S is the same as its reflection in a mirror.… Read More »
Find index i such that prefix of S1 and suffix of S2 till i form a palindrome when concatenated
Given two strings A and B of equal lengths, the task is to find an index i such that A[0…i] and B[i+1…n-1] give a palindrome… Read More »
Check whether two strings are equivalent or not according to given condition
Given two strings A and B of equal size. Two strings are equivalent either of the following conditions hold true: 1) They both are equal.… Read More »
Check if a string can be converted to another string by replacing vowels and consonants
Given two strings S1 and S2, you are allowed only to change a character at any position to any vowel if it is a vowel… Read More »
Count of words that are present in all the given sentences
Given n sentences. The task is to count the number of words that appear in all of these sentences. Note that every word consists of… Read More »
Minimum replacements to make adjacent characters unequal in a ternary string | Set-2
Given a string of ‘0’, ‘1’ and ‘2’. The task is to find the minimum number of replacements such that the adjacent characters are not… Read More »
Generate a string consisting of characters ‘a’ and ‘b’ that satisfy the given conditions
Given two integers A and B, the task is to generate and print a string str such that: str must only contain the characters ‘a’… Read More »
Number of strings that satisfy the given condition
Given N strings of equal lengths. The strings contain only digits (1 to 9). The task is to count the number of strings that have… Read More »
Minimum number of given operations required to convert a string to another string
Given two strings S and T of equal length. Both strings contain only the characters ‘0’ and ‘1’. The task is to find the minimum… Read More »
Java Program to print distinct permutations of a string
Given a string str, the task is to print all the distinct permutations of str. A permutation is an arrangement of all or part of… Read More »
Acronym words
Given N strings consisting of lowercase letters of the English alphabet. The task is to find how many strings out of these N strings are… Read More »
Python program to check if given string is pangram
Given a string, write a Python program to check if that string is Pangram or not. A pangram is a sentence containing every letter in… Read More »
Java ArrayList to print all possible words from phone digits
Given a keypad of a mobile, and keys that need to be pressed, the task is to print all the words which are possible to… Read More »
Replace two substrings (of a string) with each other
Given 3 strings S, A and B. The task is to replace every sub-string of S equal to A with B and every sub-string of… Read More »