这是我目前知道的打素数表最快的方法了…………
差不多是O(n)的,100000以内花了0.005秒。 1 int prime[100005], np, vis[100005]; 2 3 void
get_prime(int n){ 4 mset(prime); mset(vis); 5 ...
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其他好文 时间:
2014-05-30 23:26:36
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204
My original thought was to calculate all the
possible transactions by using nested loop. But got time limit excess error.I
knew it can be done in O(n)...
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其他好文 时间:
2014-05-29 20:44:37
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271
Sepearable 2D EDT, going to extend to 3D in
order to calculate the Signed Distance Function(Field)Cost 0.75s to generate the
SDF at 768^2
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其他好文 时间:
2014-05-28 03:13:14
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276
Calculate the FunctionTime Limit:2000MSMemory
Limit:65536KB64bit IO Format:%lld & %lluSubmitStatusAppoint
description:DescriptionYou are given a list ...
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其他好文 时间:
2014-05-27 18:03:16
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394
10001st prime
Problem 7
By listing the first six prime numbers: 2, 3, 5, 7, 11, and 13, we can see that the 6th prime is 13.
What is the 10 001st prime number?
使用埃拉托斯特尼筛法,不懂得自行Wiki
我的py...
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其他好文 时间:
2014-05-26 05:35:25
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248
Problem Description
Everybody knows any number can be combined by the prime number.
Now, your task is telling me what position of the largest prime factor.
The position of prime 2 is 1, prime 3 is ...
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其他好文 时间:
2014-05-26 04:29:14
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371
Problem Description
In a 2_D plane, there is a point strictly in a regular polygon with N sides. If you are given the distances between it and N vertexes of the regular polygon, can you calculate t...
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其他好文 时间:
2014-05-26 03:50:40
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252
质因数分解。 1 //Accepted 0 KB 12 ms 2 #include 3
#include 4 #include 5 const int MAXN = 100005; 6 const int inf = 100000000; 7
int pri[MAXN]; 8 in...
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其他好文 时间:
2014-05-25 23:10:33
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283
Prime Ring ProblemTime Limit : 4000/2000ms
(Java/Other)Memory Limit : 65536/32768K (Java/Other)Total Submission(s) :
27Accepted Submission(s) : 10Font...
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其他好文 时间:
2014-05-25 19:47:04
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228
问题 L: Prime Factors
时间限制: 1 Sec 内存限制: 128 MB
提交: 36 解决: 28
[提交][状态][论坛]
题目描述
I'll give you a number , please tell me how many different prime factors in this number.
输入
There is multiple te...
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其他好文 时间:
2014-05-24 20:52:54
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311