Educational Codeforces Round 24 A
There are n students who have taken part in an olympiad. Now it's time to award the students.
Some of them will receive diplomas, some wiil get certificates, and others won't receive anything. Students with diplomas and certificates are called winners. But there are some rules of counting the number of diplomas and certificates. The number of certificates must beexactly k times greater than the number of diplomas. The number of winners must not be greater than half of the number of all students (i.e. not be greater than half of n). It's possible that there are no winners.
You have to identify the maximum possible number of winners, according to these rules. Also for this case you have to calculate the number of students with diplomas, the number of students with certificates and the number of students who are not winners.
The first (and the only) line of input contains two integers n and k (1 ≤ n, k ≤ 1012), where n is the number of students and k is the ratio between the number of certificates and the number of diplomas.
Output three numbers: the number of students with diplomas, the number of students with certificates and the number of students who are not winners in case when the number of winners is maximum possible.
It's possible that there are no winners.
18 2
3 6 9
9 10
0 0 9
1000000000000 5
83333333333 416666666665 500000000002
1000000000000 499999999999
1 499999999999 500000000000 题意:有n个人参赛,必须保证获奖A的人数是获奖B的k倍,获奖人数不得超过总数的1/2,并输出未获奖人数
解法:
1 都没获奖的情况 即获奖A为1人,获奖B为k人,一共为1+k,但大于num/2
2 接下来的获奖情况 获奖A为x人,那么获奖B为xk人,一共x(1+k)==num
#include<bits/stdc++.h>
using namespace std;
int main()
{
long long n;
long long k;
cin>>n>>k;
long long num=n/;
long long sum=;
if(+k>num)
{
cout<<"0 0 "<<n<<endl;
}
else
{
long long x=num/(+k); cout<<x<<" "<<x*k<<" "<<n-(x+x*k)<<endl;
}
return ;
}
Educational Codeforces Round 24 A的更多相关文章
- Educational Codeforces Round 24 A 水 B stl C 暴力 D stl模拟 E 二分
A. Diplomas and Certificates time limit per test 1 second memory limit per test 256 megabytes input ...
- Educational Codeforces Round 24 CF 818 A-G 补题
6月快要结束了 期末也过去大半了 马上就是大三狗了 取消了小学期后20周的学期真心长, 看着各种北方的学校都放假嗨皮了,我们这个在北回归线的学校,还在忍受酷暑. 过年的时候下定决心要拿块ACM的牌子, ...
- Educational Codeforces Round 24 E
Vova again tries to play some computer card game. The rules of deck creation in this game are simple ...
- codeforces Educational Codeforces Round 24 (A~F)
题目链接:http://codeforces.com/contest/818 A. Diplomas and Certificates 题解:水题 #include <iostream> ...
- Educational Codeforces Round 24
A. Diplomas and Certificates time limit per test 1 second memory limit per test 256 megabytes input ...
- Educational Codeforces Round 24 D
Alice and Bob got very bored during a long car trip so they decided to play a game. From the window ...
- Educational Codeforces Round 24 B
n children are standing in a circle and playing a game. Children's numbers in clockwise order form a ...
- Educational Codeforces Round 24 题解
A: 考你会不会除法 //By SiriusRen #include <bits/stdc++.h> using namespace std; #define int long long ...
- Educational Codeforces Round 32
http://codeforces.com/contest/888 A Local Extrema[水] [题意]:计算极值点个数 [分析]:除了第一个最后一个外,遇到极值点ans++,包括极大和极小 ...
随机推荐
- 如何理解pca和svd的关系?
主成分分析和奇异值分解进行降维有何共同点? 矩阵的奇异值分解 当矩阵不是方阵,无法为其定义特征值与特征向量,可以用一个相似的概念来代替:奇异值. 通常用一种叫奇异值分解的算法来求取任意矩阵的奇异值: ...
- Jquery根据name取得所有选中的Checkbox值
var spCodesTemp = ""; $('input:checkbox[name=supNO]:checked').each(function (i) ...
- String,StringBuilder与StringBuffer的区别
相信大家看到过很多比较String和StringBuffer区别的文章,也明白这两者的区别,然而自从Java 5.0发布以后,我们的比较列表上将多出一个对象了,这就是StringBuilder类.St ...
- Continuous integration: The answer to life, the universe, and everything?
Continuous integration is not always the right answer. Here's why. https://techbeacon.com/continuous ...
- vue实现单选多选反选全选全不选
单选 当我们用v-for渲染一组数据的时候,我们可以带上index以便区分他们我们这里利用这个index来简单地实现单选 <li v-for="(item,index) in radi ...
- vue中如何实现后台管理系统的权限控制
vuejs单页应用的权限管理实践 一.前言 在广告机项目中,角色的权限管理是卡了挺久的一个难点.首先我们确定的权限控制分为两大部分,其中根据粒的大小分的更细: 接口访问的权限控制 页面的权限控制 菜单 ...
- Android 图片着色 Tint 详解
问题描述 在app中可能存在一张图片只是因为颜色的不同而引入了多张图片资源的情况.比如 一张右箭头的图片,有白色.灰色和黑色三种图片资源存在.所以我们可不可以只保留一张基础图片,在此图片基础上只是颜色 ...
- Oracle:spool 的一个用法
spool 是sqlplus的一个语法,非sql. 平时,我们通过ssh或者xmanger连接到oracle后,如果我们想把我们在上面操作的脚本及脚本执行过程.结果保存下来的话,可以通过spool来实 ...
- Oracle:impdb导入
最近有现场给我一份用expdp导出dmp文件,我用imp导入时,报错.因为导出dmp的数据库是11g,导入的数据库也是11g, 但客户端安装的是10g,不能用imp导入:所以只能试着用impdp导入: ...
- STL Algorithms 之 unique
C++的文档中说,STL中的unique是类似于这样实现的: template <class ForwardIterator> ForwardIterator unique ( Forwa ...