三种情况：—，列车在人的后面。二，列车与人重合。三，列车宰人的前面。不同情况下比较列车与走路所耗费的时间。
#include<bits/stdc++.h>
using namespace std;
int main()
{int s,x1,x2,t1,t2,p,d;cin>>s>>x1>>x2;cin>>t1>>t2;cin>>p>>d;if(t1>=t2){cout<<abs(x1-x2)*t2<<endl;}else{int opt,time;if(x1>x2) opt=-1;else opt=1;if(opt+d==0){if(d==-1)time=min((p+x1+abs(x1-x2))*t1,abs(x1-x2)*t2);elsetime=min((s-p+s-x1+abs(x1-x2))*t1,abs(x1-x2)*t2);cout<<time<<endl;}else{if(d==-1){if(x1<p&&t1<t2){time=min((p-x2)*t1,(x1-x2)*t2);}else if(x1==p){time=min((x1-x2)*t1,(x1-x2)*t2);}else{time=min((x1-x2)*t2,(p+s+s-x1+x1-x2)*t1);}}else{if(x1>p&&t1<t2){time=min((x2-p)*t1,(x2-x1)*t2);}else if(x1==p){time=min((x2-x1)*t1,(x2-x1)*t2);}else{time=min((x2-x1)*t2,(s-p+s+x2)*t1);}}cout<<time<<endl;}}return 0;
}