The test suite is not correct. Question is if sum of y is larger; not sum of x. And function arguments in test suite should include y.
Also, test suite does not define y_correct.
The test suite is not correct.
Remove all the words that end with "ain"
Calculate the Levenshtein distance between two strings
Who knows the last digit of pi?
MATCH THE STRINGS (2 CHAR) very easy
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