row_vector and col_vector的建立 (Leetcode 807, Leetcode 531)
这两道题都需要建立row_vectorandcol_vector,来统计每一行和每一列的信息。Leetcode807:https://leetcode.com/problems/max-increase-to-keep-city-skyline/description/classSolution{public:intmaxIncreaseKeepingSkyline(vector>&grid){i