rand()%3 ¡æ 0 or 1 or 2
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comp=rand()%3;
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Á¶°Ç¿¡ ¸Â°Ô Â͸¸ ¼öÁ¤ºÎŹµå¸³´Ï´Ù¤Ð¤Ð (ÆÄÀÏÈ®ÀåÀÚ .c)
#include <stdlib.h>
int ran_num(void);
int ran_num2(void);
int main(void)
{
int a, b;
char repeat='y';
while( repeat=='y' || repeat=='Y')
{
printf(" °¡À§ ¹ÙÀ§ º¸ °ÔÀÓÀ» ½ÃÀÛÇÏ°Ú½À´Ï´Ù.\n\n °¡À§ ¹ÙÀ§ º¸ Áß Çϳª¸¦ ÀÔ·ÂÇϼ¼¿ä.(°¡À§=1, ¹ÙÀ§=2, º¸=3) : ");
label:
scanf("%d", &a);
if(a==1)
printf("\n ´ç½ÅÀº °¡À§¸¦ ³Â½À´Ï´Ù.");
else if(a==2)
printf("\n ´ç½ÅÀº ¹ÙÀ§¸¦ ³Â½À´Ï´Ù.");
else if(a==3)
printf("\n ´ç½ÅÀº º¸¸¦ ³Â½À´Ï´Ù.");
else{
printf("\n À߸ø ÀÔ·ÂÇϼ̳׿ä. ´Ù½Ã ÀÔ·ÂÇØÁÖ¼¼¿ä.(°¡À§=1, ¹ÙÀ§=2, º¸=3) :");
goto label;}
b=ran_num();
if(b==1)
printf("\n ÄÄÇ»ÅÍ´Â °¡À§¸¦ ³Â½À´Ï´Ù.");
else if(b==2)
printf("\n ÄÄÇ»ÅÍ´Â ¹ÙÀ§¸¦ ³Â½À´Ï´Ù.");
else
printf("\n ÄÄÇ»ÅÍ´Â º¸¸¦ ³Â½À´Ï´Ù.");
printf("\n \n\n\n\n");
printf("\t********************************************\n");
if (a==b){
printf("\t**** ºñ°å½À´Ï´Ù ****\n");
printf("\t********************************************\n");
printf("\n´Ù½Ã ¼ýÀÚ¸¦ ÀÔ·ÂÇØ ÁÖ¼¼¿ä. (°¡À§=1, ¹ÙÀ§=2, º¸=3) : ");
goto label;}
else if (a !=b){
if ((a==1 && b==3) || (a==2 && b==1) || (a==3 && b==2))
{
printf("\t*** ÃàÇÏÇÕ´Ï´Ù. ´ç½ÅÀÌ ½Â¸®ÇÏ¿´½À´Ï´Ù ***\n");
printf("\t*** Çà¿îÀÇ Á¡¼ö´Â %2dÁ¡ÀÔ´Ï´Ù. ***\n",ran_num2());}
else
printf("\t*** ¾ÈŸ±õ³×¿ä. ÄÄÇ»ÅÍ°¡ ½Â¸®ÇÏ¿´½À´Ï´Ù. ***\n ");
}
printf("\t********************************************\n");
getchar();
printf("\t\t\t ** ÇÑ °ÔÀÓ ´õÇϽðڽÀ´Ï±î? ( Y / N )\n") ;
repeat= getchar();
}
return 0;
}
int ran_num(void)
{
static seed = 23522;
int n;
seed = (seed+ran_num2())%715 ;
n = (seed %3) + 1 ;
return(n) ;
}
int ran_num2(void)
{
static seed = 23525;
int n;
seed = (seed+2543)%715 ;
n = (seed %19) + 1 ;
return(n) ;
}
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