为什么这程序在POJ会Output limit Exceeded

[tjyjx7946358]

在POJ上做了一题，I Think I Need a Houseboat，http://acm.pku.edu.cn/JudgeOnline/problem?id=1005


代码如下：

#include<iostream>
#include<fstream>
#include<cmath>
using namespace std;
const double pi=3.1415926;

int main(){
	int n;
	ifstream in("abc.txt");
	in>>n;
	double a,b;
	for(int i=0;i<n;++i){
		in>>a>>b;
		double s=0;
	    int j;
		j=(int)floor(pi*(a*a+b*b)/100);
		cout<<"Property "<<i+1<<": This property will begin eroding in year "
			<<j+1<<"."<<endl;
	}
	cout<<"END OF OUTPUT."<<endl;
	return 0;
}

	

[DotCpp]

#include<iostream>
#include<cmath>
using namespace std;
const double pi=3.1415926;

int main(){
    int n;
    cin>>n;
    double a,b;
    for(int i=0;i<n;++i){
        cin>>a>>b;
	double s= pi*(a*a+b*b);
        int j=s/100;
        cout<<"Property "<<i+1<<": This property will begin eroding in year "
            <<j+1<<"."<<endl;
    }
    cout<<"END OF OUTPUT."<<endl;
	system("pause");
    return 0;
}

提交时用C++，别用G++

[tjyjx7946358]

[Quote=引用 1 楼 dotcpp 的回复:]
C/C++ code

#include<iostream>
#include<cmath>
using namespace std;
const double pi=3.1415926;

int main(){
int n;
cin>>n;
double a,b;
for(int i=0;i<n;++i){
cin>>a>……
[/Quote]
后面我也是用cin读入不用文件读入通过了。。