#include <iostream>
using namespace std;
void main(){
	int p,e,i,d,x,k,num=1;
	while(1){
		cin>>p>>e>>i>>d;
		if(p==-1 && e==-1 && i==-1 && d==-1)	break;
		for(x=d+1;x<=21252;x++)
			if((x-p)%23==0)		break;
		for(;x<=21252;x+=23)
			if((x-e)%28==0)		break;
		for(;x<=21252;x+=23*28)
			if((x-i)%33==0)		break;
		k=x-d;
		cout<<"Case "<<num<<":";
		cout<<"the next triple peak occurs in "<<k<<" days"<<endl;
		num++;
	}
}

• Re:谢谢，那位同学帮我看一下，万分感谢 (9) whosyourdaddy 2006-02-26 16:44:46