References:
反转括号子串 反转每对括号间的子串 使用最直接的解体思路： 定位一对括号（可从最里面开始） 反转括号内子串 去除括号（可替换为空格，或其他“非法”字符
References: Dynamic Programming How to solve a Dynamic Programming Problem Tabulation & Memoization What is dynamic programming Dynamic programming is mainly an optimization over plain recursion. Wherever we see a recursive solution that has repeated calls for same inputs, we can optimize it using dynamic programming. The idea is to simply store the results of subproblems, so that we do not have to re-compute them when needed later. This simple
If you could revise
the fundmental principles of
computer system design
to improve security...
... what would you change?