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What is the worst case time complexity of KMP algorithm for pattern searching (m = length of text, n = length of pattern)?

(a) O(n)

(b) O(n*m)

(c) O(m)

(d) O(log n)

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Correct choice is (c) O(m)

The explanation is: KMP algorithm is an efficient pattern searching algorithm. It has a time complexity of O(m) where m is the length of text.

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