120. Triangle

Posted 2020-11-24 manual-linux

• 题目思路
  健身回来再写 哈哈 反正没人看我的博客

• 代码：

class Solution
{
public:
    int minimumTotal(vector<vector<int>>& triangle)
    {
        int row = triangle.size();
        int col = triangle[row - 1].size();
        vector<vector<int>> dp(row,vector<int>(col));

        for (int i = 0; i < col; ++i)
        {
            dp[row - 1][i] = triangle[row - 1][i];
        }

        for (int i = row - 2; i >= 0; i--)
        {
            for (int j = 0; j < triangle[i].size(); j++)
            {
                dp[i][j] = std::min(dp[i + 1][j], dp[i + 1][j + 1]) + triangle[i][j];
            }
        }

        return dp[0][0];
    }
};

• 参考资料
  1 https://www.cnblogs.com/mozi-song/p/9626067.html 《120. Triangle》
  2 https://leetcode.com/problems/triangle/discuss/38730/DP-Solution-for-Triangle 《DP Solution for Triangle》