A. Payment Without Change

You have a coins of value n and b coins of value 1. You always pay in exact change, so you want to know if there exist such x and y that if you take x (0≤x≤a) coins of value n and y (0≤y≤b) coins of value 1, then the total value of taken coins will be S.

You have to answer q independent test cases.

Input

The first line of the input contains one integer q (1≤q≤104) — the number of test cases. Then q test cases follow.

The only line of the test case contains four integers a, b, n and S (1≤a,b,n,S≤109) — the number of coins of value n, the number of coins of value 1, the value n and the required total value.

Output

For the i-th test case print the answer on it — YES (without quotes) if there exist such x and y that if you take x coins of value n and y coins of value 1, then the total value of taken coins will be S, and NO otherwise.

You may print every letter in any case you want (so, for example, the strings yEs, yes, Yes and YES will all be recognized as positive answer).

Example

input

4

1 2 3 4

1 2 3 6

5 2 6 27

3 3 5 18

output

YES

NO

NO

YES

题意

你有a个价值为n的硬币,你有b个价值为1的硬币,问你能否组成S块钱。

题解

贪心,能用a就用a对吧

代码

#include<bits/stdc++.h>
using namespace std; void solve(){
long long a,b,n,s;
cin>>a>>b>>n>>s;
long long d = s/n;
d=min(d,a);
if(b>=s-d*n){
cout<<"YES"<<endl;
}else{
cout<<"NO"<<endl;
}
}
int main(){
int t;
scanf("%d",&t);
while(t--)solve();
}

Codeforces Round #598 (Div. 3) A. Payment Without Change 水题的更多相关文章

  1. Codeforces Round #297 (Div. 2)A. Vitaliy and Pie 水题

    Codeforces Round #297 (Div. 2)A. Vitaliy and Pie Time Limit: 2 Sec  Memory Limit: 256 MBSubmit: xxx  ...

  2. Codeforces Round #290 (Div. 2) A. Fox And Snake 水题

    A. Fox And Snake 题目连接: http://codeforces.com/contest/510/problem/A Description Fox Ciel starts to le ...

  3. Codeforces Round #322 (Div. 2) A. Vasya the Hipster 水题

    A. Vasya the Hipster Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/581/p ...

  4. Codeforces Round #373 (Div. 2) B. Anatoly and Cockroaches 水题

    B. Anatoly and Cockroaches 题目连接: http://codeforces.com/contest/719/problem/B Description Anatoly liv ...

  5. Codeforces Round #368 (Div. 2) A. Brain's Photos 水题

    A. Brain's Photos 题目连接: http://www.codeforces.com/contest/707/problem/A Description Small, but very ...

  6. Codeforces Round #359 (Div. 2) A. Free Ice Cream 水题

    A. Free Ice Cream 题目连接: http://www.codeforces.com/contest/686/problem/A Description After their adve ...

  7. Codeforces Round #355 (Div. 2) A. Vanya and Fence 水题

    A. Vanya and Fence 题目连接: http://www.codeforces.com/contest/677/problem/A Description Vanya and his f ...

  8. Codeforces Round #384 (Div. 2) A. Vladik and flights 水题

    A. Vladik and flights 题目链接 http://codeforces.com/contest/743/problem/A 题面 Vladik is a competitive pr ...

  9. Codeforces Round #379 (Div. 2) D. Anton and Chess 水题

    D. Anton and Chess 题目连接: http://codeforces.com/contest/734/problem/D Description Anton likes to play ...

随机推荐

  1. 搭建Nginx四层反向代理

    需求背景: 前段时间公司因为业务需求需要部署一个正向代理,我已经分享出来了https://www.cnblogs.com/Dfengshuo/p/11911406.html,现有因架构个更改,需要再加 ...

  2. XSS劫持cookie登录

    <script>alert (document.cookie)</script>  获取cookie 实验环境用的DVWA 先用系统账号登录,admin    password ...

  3. source insight 3 常用设置

    总结了一些source insight的一些常用设置,这些设置需求因人而异,自己用的顺手的才是最好的. 1.括号配对高亮“在前括号左侧,后括号左侧”双击鼠标左键,可以选定匹配括号和其中内容(<& ...

  4. 图像的相似度Hash算法

    Hash算法有三种,分别为平均哈希算法(aHash).感知哈希算法你(pHash)和差异哈哈希算法(dHash). 针对以上三种的Hash算法详解见博客园文章 https://www.cnblogs. ...

  5. Appium常用指令

    右键图片“在新标签页打开”可查看大图

  6. yml和properties的加载顺序和区别

    正常的情况是先加载yml,接下来加载properties文件.如果相同的配置存在于两个文件中.最后会使用properties中的配置.最后读取的优先集最高. 两个配置文件中的端口号不一样会读取prop ...

  7. 浅谈python中selenium库调动webdriver驱动浏览器的实现原理

    最近学web自动化时用到selenium库,感觉很神奇,遂琢磨了一下,写了点心得. 当我们输入以下三行代码并执行时,会发现新打开了一个浏览器窗口并访问了百度首页,然而这是怎么做到的呢? from se ...

  8. typescript与nodejs(二)基于装饰器实现路由表

    之前实现了一个简单的WebServer 但是这离实际使用还有一点距离 webserver 首先面对第一个问题是路由表 啥是路由表 路由表别看听起来神秘,但是其实就是 if else onhttp- { ...

  9. 运维工具ansible-使用与介绍(转)

    转自 Linux轻量级自动运维工具-Ansible浅析 - ~微风~ - 51CTO技术博客http://weiweidefeng.blog.51cto.com/1957995/1895261 Ans ...

  10. SQL查询语法30例

    学好SQL查询:无他,概手熟耳. 1. 基础表: 学生表: 老师表: 课程表: 成绩表: 2. 题目: 1.查询名字中含有"华"字的学生信息 select * from 学生 wh ...