ATM Dynamic Programming Code

#include <iostream>
#include <vector>
using namespace std;
int vis[1000000][100]={1};
int main() {
-vector<int> x={5,2,1};
-int y = 10;
-for(int j=1; j<=x.size() ; j++)
--for(int i=0; i<=y; i++)
---if(i < x[j-1])
----vis[i][j] = vis[i][j-1];
---else
----vis[i][j] = vis[i][j-1] + vis[i-x[j-1]][j];
-cout<< vis[y][x.size()] <<endl;
}