leetcode/solution/0100-0199/0120.Triangle/Solution2.cpp

class Solution {
public:
    int minimumTotal(vector<vector<int>>& triangle) {
        for (int i = triangle.size() - 2; ~i; --i) {
            for (int j = 0; j <= i; ++j) {
                triangle[i][j] += min(triangle[i + 1][j], triangle[i + 1][j + 1]);
            }
        }
        return triangle[0][0];
    }
};