Question

HDOJ 1859 怎么一直是WA，请大牛给我瞧瞧 题目：http://acm.hdu.edu.cn/showproblem.php?pid=1859

#include<iostream>
#include<fstream>
#include<cmath>
#include<cstring>
#include<cstdio>
#include<cstdlib>
#include <vector>
#include<climits>

using namespace std;

#define M 2010
#define N 30

int main()
{
FILE *fin,*fout;
//fin=fopen("data.in.txt","rb");
//fout=fopen("data.out.txt","wb");
fin=stdin;
fout=stdout;
////////////
int a,b;
int x1,x2,y1,y2;
while(fscanf(fin,"%d %d",&a,&b),a&&b)
{
x1=x2=a;
y1=y2=b;
while(fscanf(fin,"%d %d",&a,&b),a&&b)
{
if(x1>a)
x1=a;
if(x2<a)
x2=a;
if(y1>b)
y1=b;
if(y2<b)
y2=b;
}
fprintf(fout,"%d %d %d %d\n",x1,y1,x2,y2);
}
/////////
fclose(fin);
fclose(fout);
return 0;
}

Answer 1

while(fscanf(fin,"%d %d",&a,&b),a&&b)
应当是a和b不能均为零，所以把a&&b改成a||b