program1

2018 jd 2 

#include <iostream>
using namespace std;
int main(){    
    int n,i,j,sum=0,flag = 0;
	cin >> n;
	int* a = new int[n];
	int* b = new int[n];
	int* c = new int[n];
	for (i = 0; i < n; i++)
	{
		cin >> a[i] >> b[i] >> c[i];
	}
	
	for (i = 0; i < n-1; i++)
	{
		for (j = i + 1; j < n; j++)
		{
			if (a[i] < a[j] && b[i] < b[j] && c[i] < c[j])
			{
				flag = 1;
			}
		}
		if (flag)
		{
			sum++;
		}
		flag = 0;
	}
	cout << sum;
    return 0;
}