Daily Coding Problem: Problem #1642 [Hard]

Good morning! Here's your coding interview problem for today.

Find an efficient algorithm to find the smallest distance (measured in number of words) between any two given words in a string.

For example, given words "hello", and "world" and a text content of "dog cat hello cat dog dog hello cat world", return 1 because there's only one word "cat" in between the two words.

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