Kth word

Write a function @kth_word(s, k)@ that given a string $s$ and an integer $k\ge 1$ returns the $k{\it th}$ word in string $s$. If $s$ has less than $k$ words it returns the empty string. We assume all characters of $s$ are letters and spaces. Warning: do not use the split string method.

Sample session

Problem information

Author: ProAl

Generation: 2026-01-25T17:48:05.012Z

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