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Grokking the Coding Interview Patterns in Python

Find the Difference

Explore how to identify the index of an extra character present in only one of two similar strings, using bitwise manipulation techniques. This lesson helps you apply bitwise operations to efficiently solve string difference problems common in coding interviews. Gain hands-on experience solving this pattern to improve your algorithmic problem-solving skills.

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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:

  • 0≤0
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