c++此题参考答案：

#include <iostream>
using namespace std ;

int main()
{
	int num = 0, d = 0, maxn = 8;
	for (int i = 1; i <= 7; i++)
	{
		int a, b;
		cin >> a >> b;
		if (a + b > maxn)
		{
			d = i;
			maxn = a + b;
		}
	}
	cout << d;
	return 0;
}