##大佬求解,测试对的,WA后下载数据看了也没问题
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##大佬求解,测试对的,WA后下载数据看了也没问题
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Secretmoran0楼主2022/3/27 11:08

#include<stdio.h>
#include<math.h>
#define N 1005

int main()
{
	int n;
	int a[N][3];
	scanf("%d", &n);
	for (int i = 1; i <= n; i++)
		for (int j = 0; j < 3; j++)
			scanf("%d", &a[i][j]);

	int t = 0;
	for (int i = 1; i < n; i++)
	{
		int sum1 = 0; 

		for (int j = i + 1; j <= n; j++)
		{
			int sum2 = 0;
			int flag = 0;
			for (int k = 0; k < 3; k++)
			{
				sum1 += a[i][k];
				sum2 += a[j][k];
				if (fabs(a[i][k] - a[j][k]) <= 5)
				{
					flag++;
				}
			}
			if (fabs(sum1 - sum2) <= 10 && flag == 3)
			{
				t++;
			}
		}
	}
	printf("%d", t);

	return 0; 
}
## ```,
2022/3/27 11:08
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