#include<iostream> #include<cmath> #include<cstring> using namespace std; int main() { int n; cin>>n; int num[n][n]; int sum=0; for(int i=0;i<n;i++) for(int j=0;j<n;j++) { cin>>num[i][j]; if(i>=j) sum+=num[i][j]; } cout<<sum<<endl; return 0; } |
Double click to view unformatted code.