We read every piece of feedback, and take your input very seriously.
To see all available qualifiers, see our documentation.
学习笔记 1、 标准的DP问题,解法优美,可以逆向,也可以正向;重点在于递推公式和正确的写出来;
2、 最大有效括号,使用判断条件来转化,需要好好思考;