Minimum Distance Between Words of a String
Given a string s and two words w1 and w2 that are present in S. The task is to find the minimum distance between w1… Read More »
Category Archives: Strings
Binary Search a String
Given a sorted array of String and a String x, find index of x if it is present in the array. Examples: Input : arr[]… Read More »
Concatenate suffixes of a String
Given a string str the task is to expand the string as follows: If the string is abcd, the resultant string will be d, cd,… Read More »
Count characters in a string whose ASCII values are prime
Given a string S. The task is to count and print the number of characters in the string whose ASCII values are prime. Examples: Input:… Read More »
First X vowels from a string
Given a string str and an integer X, the task is to find and print first X vowels from str. If total vowels in str… Read More »
Java substring() method memory leak issue and fix
String is a special class in Java. substring() is one of the widely used methods of String class. It is used to extract part of… Read More »
Number of Binary Strings of length N with K adjacent Set Bits
Given and . The task is to find the number of binary strings of length n out of 2n such that they satisfy f(bit string)… Read More »
Students with maximum average score of three subjects
Given a file containing data of student name and marks scored by him/her in 3 subjects. The task is to find the list of students… Read More »
Check if words are sorted according to new order of alphabets
Given a sequence of Words and the Order of the alphabet. The order of the alphabet is some permutation of lowercase letters. The task is… Read More »
Smallest Greater (than S) String of length K whose letters are subset of S
Given a string S of length N consisting of lowercase English letters and an integer K. Find the lexicographically smallest string T of length K,… Read More »
Reverse middle words of a string
Given a string str, print reverse all words except the first and last words. Examples: Input : Hi how are you geeks Output : Hi… Read More »
Move all special char to the end of the String
In this article we will learn how to move all special char to the end of the String. Examples: Input : !@$%^&*AJAY Output :AJAY!@$%^&* Input… Read More »
Construct a binary string following the given constraints
Given three integers A, B and X. The task is to construct a binary string str which has exactly A number of 0’s and B… Read More »
Check If every group of a’s is followed by a group of b’s of same length
Given a string str, the task is to check whether every group of consecutive a’s is followed by a group of consecutive b’s of same… Read More »
Number of sub-strings which are anagram of any sub-string of another string
Given two strings S1 and S2, the task is to count the number of sub-strings of S1 that are anagrams of any sub-string of S2.… Read More »