因为睡过了只好vp。
A：阅读理解。
#include<iostream> #include<cstdio> #include<cmath> #include<cstdlib> #include<cstring> #include<algorithm> using namespace std; int read() { int x=0,f=1;char c=getchar(); while (c<'0'||c>'9') {if (c=='-') f=-1;c=getchar();} while (c>='0'&&c<='9') x=(x<<1)+(x<<3)+(c^48),c=getchar(); return x*f; } #define N int x,y,z,t1,t2,t3; int main() { cin>>x>>y>>z>>t1>>t2>>t3; if (abs(y-x)*t1>=t3*3+t2*(abs(x-z)+abs(y-x))) cout<<"YES"; else cout<<"NO"; return 0; }