In problem F, the rotation of string will cost o(n^2) time. it's ok for this problem. But I want to know is there any o(n) approach to do this work?
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In problem F, the rotation of string will cost o(n^2) time. it's ok for this problem. But I want to know is there any o(n) approach to do this work?
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By KMP, it can be optimized to O(n). See 159827269