#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main()
{
	int a, b = 0;

	struct studyTime
	{
		int xinqi;
		int shijian ;
			
	};
	struct studyTime temp;
	struct studyTime arr[7];
	for (int i = 1; i < 8; i++)
	{
		arr[i - 1].xinqi = i;
	}
	for (int i = 1; i < 8; ++i)
	{
		scanf("%d %d", &a, &b);
		arr[i - 1].shijian = a + b;
	}
	
	for (int i = 0; i < 7; i++)
	{
		for (int j = 0; j < 7; j++)
		{
			if (arr[j].shijian < arr[j + 1].shijian)
			{
				temp = arr[j];
				arr[j] = arr[j + 1];
				arr[j + 1] = temp;
			}
		}
		
	}
	if (arr[0].shijian > 8)
	{
		printf("%d", arr[0].xinqi);
	}
	else
		printf("%d", 0);
	return 0;
}

在自己的编译器上测试了几个数据没问题，但是提交时都过不了，求解哪里出问题了QAQ