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Unsolvable
HDU 4627 There are many
unsolvable
problem in the world.It could be about one or about zero.But this
题目链接：http://acm.hust.edu.cn/vjudge/contest/view.action?cid=82974#problem/E 解题思路：数论，从一个数的中间开始往两边找，找到两个互质的数就是，若这个数为奇数，则就是(n/2)*(n-n/2)，若这个数是偶数，则还需要判断这个数的一半是否是偶数，若是偶数，则就是(n/2+1)*(n/2-1)，若是奇数，则就是(n/2+2)*
·
2015-10-21 11:22
number
Unsolvable
(梅森素数+数学)
题目链接：codeforces225E题目大意：给出一个等式，z=[x2]+y+x⋅y，求另这个等式无解的z，从小到大排序，访问第i个。题目分析：首先为了简便计算先要通过分奇偶去掉向下取整符号，原式转换为如下形式：{z=k+y+2ky ,x=2kz=k+y+(2k+1)⋅y ,x=2k+1(1)(2)对于(1)式我们采取如下推到过程进行推导：z=k+y+2ky,k>=0⇒2z+1=2k+2y+4k
qq_24451605
·
2015-09-08 14:00
codeforces
数学推导
梅森素数
HDU 1032.The 3n + 1 problem【注意细节】【估计数据不强】【8月21】
1problemProblemDescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
a995549572
·
2015-08-21 19:00
C++
ACM
HDU
POJ-1207 The 3n + 1 problem
17261DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
MIKASA3
·
2015-08-07 19:00
C++
poj
南邮 OJ 1964 NP
测试通过:42 比赛描述ProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
changshu1
·
2015-08-07 10:00
ACM
NP
南邮OJ
The
Unsolvable
Problem
The
Unsolvable
Problem 题目链接：http://acm.hust.edu.cn/vjudge/problem/visitOriginUrl.action?
·
2015-07-17 16:00
ab
The 3n + 1 problem
17142DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
lv414333532
·
2015-06-15 14:00
The 3n + 1 problem
17142DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
huayunhualuo
·
2015-06-12 17:00
POJ 1207 The 3n + 1 problem (数学)
16999DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
u013068502
·
2015-04-14 21:00
poj
NYOJ 271 The 3n + 1 problem
65535 KB难度：2描述ProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
zwj1452267376
·
2015-03-15 18:00
I - The 3n + 1 problem(2.4.2)
DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
u014552726
·
2014-07-17 09:00
数据结构
C++
+
1
the
3n
problem2.
第二章 I - The 3n + 1 problem(2.4.2)
这就是为什么还得开辟两个值得原因DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
u014665013
·
2014-07-16 15:00
I - The 3n + 1 problem(2.4.2)
DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
u014028231
·
2014-07-14 15:00
POJ 1207 The 3n + 1 problem
16299DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
u013263923
·
2014-07-14 12:00
poj1207--The 3n + 1 problem
15940DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
u013015642
·
2014-05-14 16:00
北大ACM 1207 The 3n + 1 problem
15336DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
q745401990
·
2013-11-08 12:00
算法
ACM
[ACM]The 3n + 1 problem
ProblemDescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
sr19930829
·
2013-09-09 17:00
ACM
3n+1
uva 100 The 3n + 1 problem (递归）
1problem BackgroundProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
u011328934
·
2013-08-04 00:00
HDU 4627 The
Unsolvable
Problem（简单题）
题目链接：http://acm.hdu.edu.cn/showproblem.php?pid=4627题目大意：给定一个整数n(2 2#include 3#include 4usingnamespacestd; 5__int64n; 6intmain() 7{ 8intT; 9scanf("%d",&T); 10while(T--) 11{ 12scanf("%I64d",&
·
2013-08-02 09:00
HDU
hdu 4627 The
Unsolvable
Problem【hdu2013多校3签到】
链接：http://acm.hdu.edu.cn/showproblem.php?pid=4627TheUnsolvableProblemTimeLimit:2000/1000MS(Java/Others) MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):243 AcceptedSubmission(s):143Probl
Cfreezhan
·
2013-07-30 20:00
2013多校联合3 G The
Unsolvable
Problem（hdu 4627）
http://acm.hdu.edu.cn/showproblem.php?pid=4627TheUnsolvableProblemTimeLimit:2000/1000MS(Java/Others) MemoryLimit:32768/32768K(Java/Others)TotalSubmission(s):230 AcceptedSubmission(s):136ProblemD
dyx404514
·
2013-07-30 20:00
HDU 4627 The
Unsolvable
Problem 解题报告
题目比赛题意：给出n，求a+b=n，a，b为正数，使得a，b的最小共倍数最大。解法：应该去找两个互质的a和b，且尽可能接近n/2。n为奇数时，显然，LCM=(n/2)*(n/2+1).n为偶数是分两种情况，a=n/2;若a-1为奇数，则(a-1)，(a+1)互质,否则，a-2和a+2互质。//Time15MS //Memory200K、 #include #include #include #in
u010638776
·
2013-07-30 20:00
classnull100 - The 3n + 1 problem
Background ProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
·
2013-06-24 21:00
Class
UVA 100 The 3n+1 Problem
ProblemDescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
老家的橡壳树
·
2013-04-24 17:00
HDU1032:The 3n + 1 problem
ProblemDescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
libin56842
·
2013-02-27 12:00
poj1207-the 3n+1 problems
DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
tobacco5648
·
2012-12-05 18:00
hdu 1032 The 3n + 1 problem
ProblemDescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
hnuzengchao
·
2012-05-22 00:00
Algorithm
input
output
pair
classification
Numbers
POJ 1207 The 3n+1 problem(我的水题之路——输入输出要保持原有顺序)
12694DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
shiow1991
·
2012-01-28 16:00
HDU 1032 The 3n + 1 problem
ProblemDescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
qq413785523
·
2011-12-16 18:00
Algorithm
input
output
classification
pair
Numbers
uva100 The 3n + 1 problem
1problem BackgroundProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
x954818696
·
2011-11-02 21:00
Algorithm
input
output
classification
pair
Numbers
POJ 1207 HDOJ/HDU 1032 3n+1数链问题 绝对不水的解法
12294DescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
xieshimao
·
2011-09-14 15:00
Algorithm
tree
search
input
classification
Numbers
UVa100 The 3n+1 problem
BackgroundProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
JackyZhengX1990
·
2010-12-31 10:00
The 3n + 1 problem
ProblemDescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
happymawolf
·
2010-12-08 19:00
Algorithm
input
output
classification
pair
Numbers
acm pku 1207 The 3n+1的算法分析与实现
1problemDescriptionProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
uestcshe
·
2010-11-13 23:00
Algorithm
算法
input
output
classification
Numbers
UVa OJ 100 - The 3n + 1 problem (3n + 1问题)
Background背景ProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
Devymex
·
2010-08-04 13:00
ACM 3n+1的问题
Problems in Computer Science are often classified as belonging to a certain class of problems (e.g., NP,
Unsolvable
beyondjhf_2008
·
2009-04-22 22:00
C++
c
C#
J#
The 3n + 1 problem
BackgroundProblemsinComputerScienceareoftenclassifiedasbelongingtoacertainclassofproblems(e.g.,NP,
Unsolvable
技术，瞎侃，健康，休闲……
·
2006-06-10 00:00
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