[LeetCode] 204. Count Primes 质数的个数
Count the number of prime numbers less than a non-negative number, n. Example: References: How Many Primes Are There? Sieve ...
原文：LeetCode204:Count Primes
Description: Count the number of prime numbers less than a non negative number, n. 比计算少n中素数的个数。 素数又称质数，是指仅仅能被 和它自身相除的自然数。 须要注意的是 既不是素数也不是合数。 是最小的素数。 使用推断一个数是否是素数的函数，那么这个函数须要进行一轮循环，在给定的小于n中又要进行一轮循环。所以 ...
2015-10-24 18:10 1 1979 推荐指数：
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