fig05_09.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. 5.9: fig05_09.c
   Randomizing die-rolling program */
#include <stdlib.h>
#include <stdio.h>

/* function main begins program execution */
int main( void )
{
   int i;         /* counter */
   unsigned seed; /* number used to seed random number generator */
   
   printf( "Enter seed: " );
   scanf( "%u", &seed ); /* note %u for unsigned */

   srand( seed ); /* seed random number generator */
   
   /* loop 10 times */
   for ( i = 1; i <= 10; i++ ) {

      /* pick a random number from 1 to 6 and output it */
      printf( "%10d", 1 + ( rand() % 6 ) );
      
      /* if counter is divisible by 5, begin a new line of output */
      if ( i % 5 == 0 ) {
         printf( "\n" );
      } /* end if */

   } /* end for */

   return 0; /* indicates successful termination */

} /* end main */



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