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Here I am just trying to explain KMP algorithm in plain english. I will also explain worst time complexity & why it is O(m + n). We will take two examples, one with no repeatable character in the pattern & another with repeatable characters in the pattern. Pattern With Repeatable Characters: Text: aaaabaabab Pattern: aaaaa … Read more

In this post, I will try to explain Rabin-Karp algorithm & its worst time complexity. Rabin-Karp algorithm is based on hash matching.   Let’s take an example. Text: aadabcPattern: abc   Let’s create a table as below & represent each letter with some arbitrary number. We will use it to calculate hash. a b c … Read more