Given a string S consisting of N lowercase characters and character ‘?’ and a positive integer K, the task is to replace each character ‘?’… Read More

# Tag Archives: substring

Given a binary string s, the task is to calculate the number of such substrings where the count of 1‘s is strictly greater than the… Read More

Given three strings S, S1, and S2 consisting of N, M, and K characters respectively, the task is to modify the string S by replacing… Read More

Given two positive integers X and Y and two numeric strings S and P of length N and 2 respectively, the task is to find… Read More

Given a string S size of N consisting of characters ‘a‘, ‘b‘, and ‘c‘ only, the task is to check if the given string can… Read More

Given a binary string S of length N, the task is to find lexicographically the smallest string formed after modifying the string by selecting any… Read More

Given a string S consisting of N lowercase English alphabets, and also given that a character C is called K-amazing, if every substring of length… Read More

Given two binary strings S and T of length N and a positive integer K. Initially, all characters of T are ‘0’. The task is… Read More

Given a binary string S, the task is to find the minimum number of repetitive replacements of substring “01” to string “110” such that there… Read More

Given two strings S and W of sizes N and M respectively, the task is to remove the last occurrence of W from S. If… Read More

Given a binary string S of size N, the task is to find the maximum number of operations that can be performed on S, by… Read More

Given a numeric string S consisting of N digits and a positive integer K, the task is to check if the given string can be… Read More

Given a string S consisting of N lowercase characters, the task is to find the length of the longest substring that does not contain any… Read More

Given a numeric string S, the task is to find the number of ways to partition a string into substrings consisting of digits in increasing… Read More

Given a binary string of size N, the task is to count the number of alternating substrings that are present in the string S. Examples: … Read More