yveh的hu测（全程表白xiaoyimi）

分析：

这里写代码片#include<cstdio>#include<cstring>#include<iostream>#define ll long longusing namespace std;const int N=100001;int n,tou,wei,deep[N];ll A,B,C,D;int doit(){    ll up,down;    up=A+(n-1)*D;    down=A+(n-1)*C;    for (int i=1;i<=n;i++)    {        if (B<=up&&B>=down) return 1;        up-=(C+D);        down-=(C+D);     }    return 0;}int main(){    //freopen("xiao.in","r",stdin);      //freopen("xiao.out","w",stdout);       int T;    scanf("%d",&T);    while (T--)    {        scanf("%d%lld%lld%lld%lld",&n,&A,&B,&C,&D);        if (doit()) printf("YES\n");        else printf("NO\n");    }    return 0;}