[class2] (백준 1085) 직사각형에서 탈출

#include <stdio.h>

int min(int n1, int n2)
{
    if(n1<n2)
    {
        return n1;
    }
    return n2;
}
int main()
{
    int x,y,w,h;
    scanf("%d %d %d %d",&x,&y,&w,&h);
    printf("%d",min(min(h-y,y),min(w-x,x)));
    return 0;
}