fig07_24.c

C程序设计经典教程第5版程序示例,比较适合初级c语言的学生

/* Fig. 7.24: fig07_24.c
   Card shuffling dealing program */
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

/* prototypes */
void shuffle( int wDeck[][ 13 ] );
void deal( const int wDeck[][ 13 ], const char *wFace[], 
           const char *wSuit[] );

int main( void )
{
   /* initialize suit array */
   const char *suit[ 4 ] = { "Hearts", "Diamonds", "Clubs", "Spades" };
   
   /* initialize face array */
   const char *face[ 13 ] = 
      { "Ace", "Deuce", "Three", "Four", 
        "Five", "Six", "Seven", "Eight",
        "Nine", "Ten", "Jack", "Queen", "King" };

   /* initialize deck array */
   int deck[ 4 ][ 13 ] = { 0 };

   srand( time( 0 ) ); /* seed random-number generator */

   shuffle( deck );
   deal( deck, face, suit );

   return 0; /* indicates successful termination */

} /* end main */

/* shuffle cards in deck */
void shuffle( int wDeck[][ 13 ] )
{
   int row;    /* row number */
   int column; /* column number */
   int card;   /* counter */

   /* for each of the 52 cards, choose slot of deck randomly */
   for ( card = 1; card <= 52; card++ ) {

      /* choose new random location until unoccupied slot found */
      do {
         row = rand() % 4;
         column = rand() % 13;
      } while( wDeck[ row ][ column ] != 0 ); /* end do...while */

      /* place card number in chosen slot of deck */
      wDeck[ row ][ column ] = card;
   } /* end for */

} /* end function shuffle */

/* deal cards in deck */
void deal( const int wDeck[][ 13 ], const char *wFace[],
           const char *wSuit[] )
{
   int card;   /* card counter */
   int row;    /* row counter */
   int column; /* column counter */

   /* deal each of the 52 cards */
   for ( card = 1; card <= 52; card++ ) {

      /* loop through rows of wDeck */
      for ( row = 0; row <= 3; row++ ) {

         /* loop through columns of wDeck for current row */
         for ( column = 0; column <= 12; column++ ) {

            /* if slot contains current card, display card */
            if ( wDeck[ row ][ column ] == card ) {
               printf( "%5s of %-8s%c", wFace[ column ], wSuit[ row ],
                  card % 2 == 0 ? '\n' : '\t' );
            } /* end if */

         } /* end for */

      } /* end for */

   } /* end for */

} /* end function deal */



/**************************************************************************
 * (C) Copyright 1992-2007 by Deitel & Associates, Inc. and               *
 * Pearson Education, Inc. All Rights Reserved.                           *
 *                                                                        *
 * DISCLAIMER: The authors and publisher of this book have used their     *
 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
 *************************************************************************/