15分求助

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,d;
	cin>>n>>d;
	int s[n+1],t[n+1],h[n+1];
	for(int i=0;i<n+1;i++)
	{
		cin>>s[i]>>t[i]>>h[i];
	}
	for(int i=1;i<n+1;i++)
	{
		if((abs(h[i]-h[0]))>d)
		{
			cout<<"No"<<endl;
		}
		else
		{
			if((s[i]<s[0]&&t[i]<t[0])||(s[i]>s[0]&&t[i]>t[0]))
			{
				cout<<"No"<<endl;
			}
			else if(s[i]==s[0]&&t[i]==t[0])
			{
				cout<<"Always"<<endl;
			}
			else
			{
				double x=(s[i]-s[0])/(t[0]-s[0]-t[i]+s[i]);
				cout<<fixed<<setprecision(12)<<s[0]+x*(t[0]-s[0])<<endl;
			}
		}
	}
	return 0;
}