C库函数 rand()

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C库函数 rand()

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main () {
   int i, n;
   time_t t;
   n = 5;

   /* Intializes random number generator */
   srand((unsigned) time(&t));

   /* Print 5 random numbers from 0 to 49 */
   for( i = 0 ; i < n ; i++ ) {
      printf("%d\n", rand() % 50);
   }

   return(0);
}