[실1] 2527 - 직사각형

#include <iostream>
#include <algorithm>

using namespace std;

int main() {
    int x1, y1, p1, q1, x2, y2, p2, q2;
    int xr, xl, yb, yt, xdiff, ydiff;
    
    for (int i = 0; i < 4; i++) 
    {
        cin >> x1 >> y1 >> p1 >> q1 >> x2 >> y2 >> p2 >> q2;

        xl = max(x1, x2);
        xr = min(p1, p2);
        yb = max(y1, y2);
        yt = min(q1, q2);

        xdiff = xr - xl;
        ydiff = yt - yb;

        if (xdiff > 0 && ydiff > 0)
            cout << 'a' << endl;
        
        else if (xdiff < 0  || ydiff < 0)
            cout << 'd' << endl;
        
        else if (xdiff == 0 && ydiff == 0)
            cout << 'c' << endl;
        
        else 
            cout << 'b' << endl;
    }
    return 0;
}