helplira.cpp

#include <iostream>

using namespace std;

int main()
{
    int n;
    cin>>n;
    int x1,y1,x2,y2,x3,y3;
    int min_a = 999999999;
    int max_a = 0;
    int A;
    int min_n = -1;
    int max_n = -1;

    for(int i=1; i<=n; i++)
    {
        cin>>x1 >>y1 >>x2 >>y2 >>x3 >>y3;
        A = ((x1*(y2-y3)) + (x2*(y3-y1)) + (x3*(y1-y2))) / 2;
        if(A < 0)
        {
            A *= -1;
        }
        if(A >= max_a)
        {
            max_a = A;
            max_n = i;
        }
        if(A <= min_a)
        {
            min_a = A;
            min_n = i;
        }
    }
    cout<<min_n<<" "<<max_n<<"\n";
    return 0;
}