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气死，还是不知道为什么WA。其实暴力也很快，一个case也就算1000次而已～～

Posted by userfriendly at 2008-07-16 21:05:58 on Problem 1006 
#include <iostream>
using namespace std;

int main()
{
	int p, e, i, d, k, c=0;
	while(cin>>p>>e>>i>>d && p!=-1)
	{
		c++;
		p%=23; e%=28; i%=33;
		if(p==e && e==i && p>d)
			k=1;
		else do
		{
			p+=23;
			k=p;
		}while(d>=k || (p-e)%28 || (p-i)%33);
		cout<<"Case "<<c<<": the next triple peak occurs in "<<k-d<<" days."<<endl;
	}
}
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