- Can we assume the strings are ASCII?
- Yes
- Is case important?
- The strings are lower case
- Can we assume the inputs are valid?
- No, check for None
- Can we assume this fits memory?
- Yes
Instructions:
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Program should be written in file build.py
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Function name should be find_diff.
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Input
Type: String Value: s1 = 'aabcddd' s2 = 'abbbbccde'
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Expected Output
Type: String Value: 'e'