Given a triangle, find the minimum path sum from top to bottom. Each step you may move to adjacent numbers on the row below.
For example, given the following triangle
[
[2],
[3,4],
[6,5,7],
[4,1,8,3]
]
The minimum path sum from top to bottom is
11
(i.e., 2 + 3 +
5 + 1 = 11).
代码如下:
class Solution {
public:
int minimumTotal(vector<vector<int>>& triangle) {
vector<int> min = triangle[triangle.size()-1];
for(int i=triangle.size()-2;i>=0;--i)
{
for(int j=0;j<triangle[i].size();j++)
{
int temp = min[j]<min[j+1]?min[j]:min[j+1];
min[j] = triangle[i][j] + temp;
}
}
return min[0];
}
};