西安交通大学915-2015-编程1

#include <iostream>
using namespace std;

const int N = 3;
void sum(int mat[N][N], int row, int col) {
    int dg = 0;
    int udg = 0;

    
    for (int i = 0; i < row; i++) {
        dg += mat[i][i];
    }

    for (int i = 0; i < row; i++) {
        for (int j = 0; j < col; j++) {
            if (i + j == row - 1) {
                udg += mat[i][j];
            }
        }
    }

    cout << "first : " << dg << endl;
    cout << "second : " << udg << endl;
}

int main() {
    int mat[3][3] = {
        {1, 2, 3},
        {4, 5, 6},
        {7, 8, 9}
    };
    sum(mat, 3, 3);
    return 0;
}