Given a string str consisting of lowercase English alphabets. The task is to change each character of the string with the next letter (in a circular fashion) key in the keyboard. For example, ‘a’ gets replaced with ‘s’, ‘b’ gets replaced with ‘n’, ….., ‘l’ gets replaced with ‘z’, ….., ‘m’ gets replaced with ‘q’.
Input: str = “geeks”
Input: str = “plmabc”
Approach: For every lowercase character of the English alphabet, insert the character next to it in the keyboard in an unordered_map. Now traverse the given string character by character, and update every character with the map created earlier.
Below is the implementation of the above approach:
- Find a string such that every character is lexicographically greater than its immediate next character
- Replace every character of string by character whose ASCII value is K times more than it
- Map every character of one string to another such that all occurrences are mapped to the same character
- Replace every character of a string by a different character
- Check if frequency of character in one string is a factor or multiple of frequency of same character in other string
- Longest Common Prefix using Character by Character Matching
- Count substrings that starts with character X and ends with character Y
- Count of strings possible by replacing two consecutive same character with new character
- Shortest distance to every other character from given character
- Lexicographically smallest string formed by appending a character from the first K characters of a given string
- Lexicographically smallest string formed by appending a character from first K characters of a string | Set 2
- Find the character in first string that is present at minimum index in second string
- Queries to find the first non-repeating character in the sub-string of a string
- Queries to find the last non-repeating character in the sub-string of a given string
- Convert the string into palindrome string by changing only one character.
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