题目描述

blablabla

样例

blablabla

算法1

class Solution {
public:
    int getMaxValue(vector<vector<int>>& grid) {
        int n=grid.size(),m=grid[0].size();
        for (int i=0;i<n;i++) {
            for (int j=0;j<m;j++) {
                if(i==0 && j==0) continue;
                else if (i==0) grid[i][j]+=grid[i][j-1];
                else if (j==0) grid[i][j]+=grid[i-1][j];
                else grid[i][j]=max(grid[i-1][j],grid[i][j-1])+grid[i][j];
            }
        }
        return grid[n-1][m-1];
    }
};