Solution: Find the Difference
Explore how to identify the index of an extra character in one string compared to another by applying bitwise XOR operations. Understand the algorithm's step-by-step construction to optimize time and space complexity while solving string comparison problems.
Statement
Given two strings, str1 and str2, find the index of the extra character that is present in only one of the strings.
Note: If multiple instances of the extra character exist, return the index of the first occurrence of the character in the longer string.
Constraints:
-
str1.length,str2.length - Either
str2.lengthstr1.length + 1, or,str1.length