Maximum sum and product of the M consecutive digits in a number
Given a number in the form of a string. The task is to find the maximum sum and product of m consecutive digits that are… Read More »
Category Archives: Strings
Minimum number of elements to be removed so that pairwise consecutive elements are same
Given a string str. The task is to count the minimum number of elements to be removed so that pairwise consecutive elements are same Examples:… Read More »
Count the number of vowels occurring in all the substrings of given string
Given a string of length N of lowercase characters containing 0 or more vowels, the task is to find the count of vowels occurred in… Read More »
Check if frequency of character in one string is a factor or multiple of frequency of same character in other string
Given two strings, the task is to check whether the frequencies of a character(for each character) in one string is a multiple or a factor… Read More »
Smallest odd digits number not less than N
Given a number N, the task is to find the smallest number not less than N, which has all digits odd. Examples: Input: N =… Read More »
Count and Print the alphabets having ASCII value in the range [l, r]
Given a string str, the task is to count the number of alphabets having ascii in the range [l, r]. Examples: Input: str = “geeksforgeeks”… Read More »
Number of closing brackets needed to complete a regular bracket sequence
Given an incomplete bracket sequence S. The task is to find the number of closing brackets ‘)’ needed to make it a regular bracket sequence… Read More »
Lexicographically smallest permutation with no digits at Original Index
Given an integer N. The task is to find the lexicographically smallest permutation of integer of the form: 12345…N such that no digit occurs at… Read More »
Minimum steps to remove substring 010 from a binary string
Given a binary string, the task is to count the minimum steps to remove substring “010” from this binary string. Examples: Input: binary_string = “0101010”… Read More »
XOR of Prime Frequencies of Characters in a String
Given a string containing only lowercase english alphabets. The task is to find the bitwise XOR of all the prime frequencies of the characters in… Read More »
Count of alphabets having ASCII value less than and greater than k
Given a string, the task is to count the number of alphabets having ASCII value less than and greater than or equal to a given… Read More »
Number of ways to partition a string into two balanced subsequences
Given a string ‘S’ consisting of open and closed brackets, the task is find the number of ways in which each character of ‘S’ can… Read More »
De Bruijn sequence | Set 1
Given an integer n and a set of characters A of size k, find a string S such that every possible string on A of… Read More »
Shortest distance to every other character from given character
Given a string S and a character X where , for some . The task is to return an array of distances representing the shortest… Read More »
Number of words in a camelcase sequence
CamelCase is the sequence of one or more than one words having the following properties: It is a concatenation of one or more words consisting… Read More »
