Some snake

#include <bits/stdc++.h>
using namespace std;
int main()
{
    int T; cin >> T;
    while(T--)
    {
        int x11, x12, x21, x22, y11, y12, y21, y22, slope1, slope2;
    bool flag = 0;
    cin>>x11>>y11>>x12>>y12>>x21>>y21>>x22>>y22;
    slope1 = (x11==x12)?1:0;
    slope2 = (x21==x22)?1:0;
    if(slope1!=slope2)
    {
        if(slope1 == 0 && ((x11 == x21 || x12 == x21) && (y11 == y21 || y11 == y22)))
        flag = 1;
        else if (slope2 == 0 && ((x21 == x11 || x22 == x11 ) && (y21 == y11 || y21 == y12)))
        flag = 1;
        else if ( (slope1 == 0 && (x21 == x22 && y21 == y22) && y11 == y21 && (x21>=min(x11,x12) && x21<=max(x12,x11)) ) ||
                (slope2 == 0 && (x11 == x12 && y11 == y12) && y11 == y21 && (x11>=min(x21,x22) && x11<=max(x21,x22)) ) )
        flag = 1;
    }
    else if(slope1 == 1 && x11==x22 && max(y21, y22)>=min(y11, y12) && min(y21, y22)<=max(y11, y12))
        flag = 1;
    else if(y11==y22 && max(x21, x22)>=min(x11, x12) && min(x21, x22)<=max(x11, x12))
        flag = 1;
if (flag)
          cout <<"yes\n";
        else
          cout <<"no\n";
    }
}