Boyer-Moore algorithm

http://www-igm.univ-mlv.fr/~lecroq/string/node14.html

Main features

• performs the comparisons from right to left;
• preprocessing phase in O(m+) time and space complexity;
• searching phase in O(mn) time complexity;
• 3n text character comparisons in the worst case when searching for a non periodic pattern;
• O(n / m) best performance.

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