LeetCode "Different Ways to Add Parentheses"

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My initial thought was recursive (a op b) evaluation, which doesn‘t work quite well.

The correct way is to split by op. And, we can cache calculaton result for given substr.

https://leetcode.com/discuss/48577/my-c-divide-and-conquer-recursive-solution-%26-dp-solution

LeetCode "Different Ways to Add Parentheses"

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原文地址：http://www.cnblogs.com/tonix/p/4694006.html