hdu 1859(计算几何)

/*
  Name: 计算几何 
  Author:  Try_86
  Date: 11/04/12 18:07
  Description: 求x,y的最大最小值即可 
*/

#include <cstdio>
#include <climits>
#include <iostream>

using namespace std;

int main() {
    int x, y, minx, miny, maxx, maxy;
    while (scanf("%d%d", &x, &y), x!=0 || y!=0){
        minx = INT_MAX;
        miny = INT_MAX;
        maxx = INT_MIN;
        maxy = INT_MIN;
        if (minx>x) minx = x;
        if (maxx<x) maxx = x;
        if (miny>y) miny = y;
        if (maxy<y) maxy = y;
        while (scanf("%d%d", &x, &y), x!=0 || y!=0) {
            if (minx>x) minx = x;
            if (maxx<x) maxx = x;
            if (miny>y) miny = y;
            if (maxy<y) maxy = y;
        }
        printf ("%d %d %d %d\n", minx, miny, maxx, maxy);
    }
    return 0;
}