#include using namesp

#include using namespace std;int n, i,j, a[100][100];int solve(int x, inty){\tint u, v;\tif (x == n)\t\treturn a[x][y];\tu = solve(x   1, y);\tv = solve(x   1, y   1);\tif (u > v)\t\treturn a[x][y]   u;\telse\t\treturn a[x][y]   v;}int main(){\tcin>>n;\tfor (i = 1; i <= n; i  )\t\tfor (j = 1; j <= i; j  )\t\t\tcin>>a[i][j];\tcout<

输入 :
5
2
-1 4
2 -1 -2
-1 6 4 0
3 2 -1 5 8
输出：