In the last test, it is written "y-correct" instead of "y_correct".
You should add tests with words that contain letters repeated more than two times.
Am extremely sorry for that.Thanks for that.I edited it now.Thanks alot Beltramini
Hmmm.... I just realised why this passed, whereas Solution 1570787 doesn't.
Which values occur exactly three times?
Doubling elements in a vector
Is this triangle right-angled?
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