Minimum operations required to convert a binary string to all 0s or all 1s
Given a binary string str, the task is to find the minimum number of operations required to make all the characters of the string same… Read More »
Category Archives: Strings
String Range Queries to find the number of subsets equal to a given String
Given a string S of length N, and M queries of the following type: Type 1: 1 L x, Indicates update Lth index of string… Read More »
Print characters and their frequencies in order of occurrence using a LinkedHashMap in Java
Given a string str containing only lowercase characters. The task is to print the characters along with their frequencies in the order of their occurrence… Read More »
Swap characters in a String
Given a String S of length N, two integers B and C, the task is to traverse characters starting from the beginning, swapping a character… Read More »
Sort an array of strings according to string lengths using Map
Given an array of strings, we need to sort the array in increasing order of string lengths, using Map Data Structure. Examples: Input: str[] =… Read More »
Lexicographically smallest string formed by appending a character from first K characters of a string | Set 2
Given a string str consisting of lowercase alphabets and an integer K, you can perform the following operations on str Initialize an empty string X… Read More »
Round the given number to nearest multiple of 10 | Set-2
Given a large positive integer represented as a string str. The task is to round this number to the nearest multiple of 10. Examples: Input:… Read More »
Java program to check whether a string is a Palindrome
Given a string str, the task is to find whether the string is a palindrome or not in Java without using library methods. Examples: Input:… Read More »
Program to parse the Molecules and get the Atoms count
Given a chemical formula as a string, the task is to get the count of atoms in this chemical formula. Examples: Input: str = “Fe2H3OH”… Read More »
Check whether two strings are anagrams of each other using unordered_map in C++
Write a function to check whether two given strings are an Anagram of each other or not. An anagram of a string is another string… Read More »
Frequency of a substring in a string using pthread
Given an input string and a substring. Find the frequency of occurrences of a substring in the given string using pthreads. Examples: Input: string =… Read More »
C++ program to compare two Strings using Operator Overloading
Pre-requisite: Operator Overloading in C++ Given two strings, how to check if the two strings are equal or not, using Operator Overloading. Examples: Input: ABCD,… Read More »
Program to find the Encrypted word
Given a string, the given string is an encrypted word, the task is to decrypt the given string to get the original word. Examples: Input:… Read More »
Queries to print the character that occurs the maximum number of times in a given range
Given a string S of size N and Q queries. Every query consists of L and R ( 0 < = L < = R… Read More »
Repeat substrings of the given String required number of times
Given a string str, the task is to repeat every substring of the string X number of times where X is the number composed of… Read More »
