K-good Words

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Chef Al Gorithm was reading a book about climate and oceans when he encountered the word “glaciological”. He thought it was quite curious, because it has the following interesting property: For every two letters in the word, if the first appears x times and the second appears y times, then |x - y| ≤ 1. Chef Al was happy about this and called such words 1-good words. He also generalized the concep

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solution.cppC++17

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