작은숲:위키노트/C 언어 예제/가위바위보 게임 만들기

<syntaxhighlight lang="c"> /**

* Copyright (c) 2001,2002 Yoon, Hyunho <hhyoon@kldp.org>
* http://mooo.org
* ----------------------------------------------------------------------
*
* LICENSE
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software 
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/

1. include <stdio.h>
2. include <stdlib.h>
3. include <time.h>

void main(void) { int users, computers; // 사용자와 컴퓨터의 선택

   int win_user = 0, win_computer = 0;       // 사용자와 컴퓨터의 전적
   char *str[3] = { "Gai", "Bai", "Bo" };   // 가위, 바위, 보 문자열 저장
   srand( (unsigned)time( NULL ) );       // 랜덤 함수 초기화
   printf("Enjoy Gai Bai Bo!\n");
   printf("1. Gai 2. Bai 3. Bo\n\n");
   for (;;) {                               // 무한 루프
       computers = (rand() % 3) + 1;       // 1, 2, 3 중의 하나를 선택
       printf("Enter your choice: ");
       scanf("%d", &users);
       if ( users == 0 )
           break;
       else if ( users < 1 || users > 3 )
           continue;
       printf("You: %s, Computer: %s\n", str[users - 1], str[computers - 1]);
       switch (computers) {
       case 1:
           if ( users == 2 ) {
               printf("You win!\n");
               win_user++;
           }
           else if ( users == 3 ) {
               printf("You lose!\n");
               win_computer++;
           }
           else
               printf("We have the same thing.\n");
           break;
       case 2:
           if ( users == 3 ) {
               printf("You win!\n");
               win_user++;
           }
           else if ( users == 1 ) {
               printf("You lose!\n");
               win_computer++;
           }
           else
               printf("We have the same thing.\n");
           break;
       case 3:
           if ( users == 1 ) {
               printf("You win!\n");
               win_user++;
           }
           else if ( users == 2 ) {
               printf("You lose!\n");
               win_computer++;
           }
           else
               printf("We have the same thing.\n");
           break;
       default:
           printf("Error!\n");
       }
   }
   printf("You win: %d, You lose: %d\n", win_user, win_computer);
   printf("Bye!\n");

}</source>

이 작은숲 문서의 출처는 위키노트의 위키노트/C 언어 예제/가위바위보 게임 만들기 문서입니다.