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 3204, 147/161 ȸ¿ø°¡ÀÔ  ·Î±×ÀΠ 
   tlswlgh2001
   http://www.cyworld.com/tlswlgh2001
   ¼Ò¼ö¸¦ ±¸ÇÏ´Â ÇÁ·Î±×·¥Àε¥, visual C++¿¡¼­ ºôµå°¡ ¾ÈµË´Ï´Ù.

http://www.hackerschool.org/HS_Boards/zboard.php?desc=asc&no=2031 [º¹»ç]


/*
        1000 ÀÌÇÏÀÇ ¼Ò¼ö¸¦ ±¸ÇÑ´Ù
*/

#include  <stdio,h>
int main(void)
{
        int  i, no;
        int  prime[500];                                                 /* ¼Ò¼ö¸¦ ÀúÀåÇÏ´Â ¹è¿­ */  
        int  ptr = 0;                                                         /* ÀÌ¹Ì ¾òÀº ¼Ò¼öÀÇ °³¼ö */  
        unsigned long  counter = 0;

        prime[ptr++] = 2;                                                 /* 2´Â ¼Ò¼öÀÌ´Ù */  
        prime[ptr++] = 3;                                                 /* 3µµ ¼Ò¼öÀÌ´Ù */  

        for (no = 5; no <= 1000; no += 2) {
                int  flag = 0;
                for (i = 1; counter++, prime[i] * prime[i] <= no; i++) {
                        counter++;
                        if (no % prime[i] == 0) {                 /* ³ª´©¾îÁö¸é ¼Ò¼ö°¡ ¾Æ´Ï´Ù */  
                                flag = 1;
                                break;                                         /* ÀÌ ÀÌ»ó ¹Ýº¹Àº ºÒÇÊ¿ä */  
                        }
                }
                if (!flag)                                                 /* ³¡±îÁö ³ª´©¾îÁöÁö ¾Ê¾Ò´ô */  
                        prime[ptr++] = no;                                 /* ¹è¿­¿¡ µî·Ï */
        }
        for (i = 0; i < ptr; i++)
                        printf("%d\n", prime[i]);

        printf("³ª´©±â¸¦ ÇÑ È½¼ö :%lu\n",  counter);

        return (0);
}


ÀÌ»óÀÌ ÇÁ·Î±×·¥ÀÇ ³»¿ëÀε¥, ¿©±â¼­ ¹Ø¿¡¼­ 4¹ø°ÇàÀÇ printf¿Í ±× À§ÀÇ printf°¡ ¿À·ù°¡ ³³´Ï´Ù. ÀÌ°Ç ¿Ö ÀÌ·±°Å°í, ¾î¶»°Ô ÇؾßÇϴ°ÅÁÒ?

  Hit : 3069     Date : 2009/05/20 11:00



    
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