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搜索关键字:primes    ( 339个结果
大素数筛子
题目地址:http://acm.fafu.edu.cn/problem.php?id=1011 Description: The problem is very simple,your job is just to calculate the sum of primes from the first ...
分类:其他好文   时间:2016-08-01 22:55:45    阅读次数:347
204. Count Primes
不解释了 ...
分类:其他好文   时间:2016-07-21 08:41:56    阅读次数:157
hdu_5104 Primes Problem()
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5104 rimes Problem Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Tota ...
分类:其他好文   时间:2016-07-14 08:32:37    阅读次数:177
Codeforces Round #324 (Div. 2) D. Dima and Lisa (哥德巴赫猜想 + 暴力)
D. Dima and Lisa D. Dima and Lisa Dima loves representing an odd number as the sum of multiple primes, and Lisa loves it when there are at most three ...
分类:其他好文   时间:2016-07-12 21:29:38    阅读次数:193
hdu 5104(数学)
Primes Problem Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2841 Accepted Submission(s): 1276 ...
分类:其他好文   时间:2016-07-11 18:48:09    阅读次数:211
LeetCode 204. Count Primes
Problem: https://leetcode.com/problems/count-primes/ Count the number of prime numbers less than a non-negative number, n. Thought: SieveofEratosthene ...
分类:其他好文   时间:2016-07-09 17:48:54    阅读次数:136
algorithm@ Sieve of Eratosthenes (素数筛选算法) & Related Problem (Return two prime numbers )
Sieve of Eratosthenes (素数筛选算法) Given a number n, print all primes smaller than or equal to n. It is also given that n is a small number. For example, ...
分类:编程语言   时间:2016-07-06 00:06:40    阅读次数:308
LeetCode 第 204 题 (Count Primes)
LeetCode 第 204 题 (Count Primes) Description: Count the number of prime numbers less than a non-negative number, n. 计算小于 N 的素数的个数。这道题目比较简单。但是想提高计算效率与需要费点脑筋。判断一个数字 nn 是不是素数的简单方法是 用 nn 去除 2,3,4,…,n?1...
分类:其他好文   时间:2016-07-03 19:45:17    阅读次数:212
Leetcode 204. Count Primes
题目概述: Description: Count the number of prime numbers less than a non-negative number, n. Credits:Special thanks to @mithmatt for adding this problem a ...
分类:其他好文   时间:2016-06-19 06:46:44    阅读次数:195
204. Count Primes
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分类:其他好文   时间:2016-06-09 12:17:44    阅读次数:179
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