Remove all characters other than alphabets from string
Given a string consisting of alphabets and others characters, remove all the characters other than alphabets and print the string so formed.
Rearrange the characters of the string such that no two adjacent characters are consecutive English alphabets
Modify string by replacing characters by alphabets whose distance from that character is equal to its frequency
Minimum characters to be replaced in Ternary string to remove all palindromic substrings for Q queries