没见过这么水的普及-题，这是在给普及-丢脸吧

// 挑战最短代码
#include<bits/stdc++.h>
using namespace std;
int n, m, a[1005][1005], x, y;
int main() {
	cin >> n >> m;
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			cin >> a[i][j];
			if (a[i][j]) x += (i == m), y += (j == m);
		}
	}
	cout << x << " " << y << " " << x + y << "\n";
}

如有更短的欢迎评论 求关注！