Online JudgeProblem SetAuthorsOnline ContestsUser
Web Board
Home Page
F.A.Qs
Statistical Charts
Problems
Submit Problem
Online Status
Prob.ID:
Register
Update your info
Authors ranklist
Current Contest
Past Contests
Scheduled Contests
Award Contest
User ID:
Password:
  Register
欢迎参加IJCAI 2020麻将智能体竞赛,大奖等你拿!Welcome to IJCAI 2020 Mahjong AI competition with amazing prizes! | 北京大学《ACM/ICPC大学生程序设计竞赛训练》暑期课面向全球招生!

Re:为啥我这样做5.19求出272张卡

Posted by huxiaoxu at 2020-07-20 20:56:49 on Problem 1003
In Reply To:为啥我这样做5.19求出272张卡 Posted by:ranzhouhua at 2019-07-18 17:11:24
> #include<iostream>
> using namespace std;
> 
> int hangover( double x)
> {
> 	int n=1;
> 	double cardlength,a,b;
> 	cardlength = 1.0 / (n + 1);
> 	for (cardlength;cardlength<x;cardlength += 1.0 / (n + 1))
> 	{
> 		n++;
> 	}
> 	a = cardlength-1.0/(n+1);
> 	b = cardlength;
> 	if ((x - a) > (b - x))
> 	{
> 		return n;
> 	}
> 	else
> 		return n-1;
> }
> 
> int main()
> {
> 	double x;
> 	while (cin >> x&&x!=0.00)
> 	{
> 		int	 n=hangover(x);
> 		cout << n << " card(s)" << endl;
> 	}
> 	return 0;
> }

不需要 if ((x - a) > (b - x)) 的判断

Followed by:

Post your reply here:
User ID:
Password:
Title:

Content:

Home Page   Go Back  To top


All Rights Reserved 2003-2013 Ying Fuchen,Xu Pengcheng,Xie Di
Any problem, Please Contact Administrator