hdu 2138 How many prime numbers (素數判定）
How many prime numbers
Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 8205 Accepted Submission(s): 2642
Problem Description
Give you a lot of positive integers, just to find out how many prime numbers there are.
Input
There are a lot of cases. In each case, there is an integer N representing the number of integers to find. Each integer won’t exceed 32-bit signed integer, and each of them won’t be less than 2.
Output
For each case, print the number of prime numbers you have found out.
Sample Input
3
2 3 4
Sample Output
2
Author
wangye
Source
HDU 2007-11 Programming Contest_WarmUp
解題思路：直接判定是否為素數即可。
AC代碼：
#include
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#include
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#include
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#include
