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Update Z-algorithm.md

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Aakash Panchal 2020-06-04 02:54:13 +05:30 committed by GitHub
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@ -128,7 +128,7 @@ For example, `p = "ab"` and `s = "abbbabab"`, then Z-algorithm will find us `[0,
Basic idea here is to create a new string having $p$ as a prefix and $s$ as a suffix i.e. `new_str = p + '#' + s`.
**To make sure that the value of Z-function does not exceed the length of $p$, we add a character which is never going to appear in string $s$ like `'#'`**.
**To make sure that the value of Z-function does not exceed the length of $p$, we add a character that is never going to appear in string $s$ like `'#'`**.
Now, we will find Z-function of `new_str`.