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我招谁惹谁了,老是runtime error!!!郁闷阿!!!!!!!!1

Posted by liuweni at 2007-08-02 16:33:47 on Problem 2301
#include <iostream>
using namespace std;

int main()
{
	int n;
	int a,b;
	cin>>n;
	while(n--)
	{
		cin>>a;
		cin>>b;
		if( b > a || b % a == 0 )
			cout<<"impossible";
		else
			cout<<(a+b)/2<<" "<<(a-b)/2<<endl;
	}
	return 0;
}

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