random integers

[Unregistered]

hi this is my first time to visit this site hope some1 can help me

how to generate a random integers in a given range say from is nto a problem for me but the problem is who to get more than one integer (ie the code i used only gives me one integer how can i get n number of integers )

this is my code

int range,num,r,i ;

{
printf("Enter the range size(max=20)");
scanf("%d",&range);
printf("How many numbers do you wish to generate?");
scanf("%d",&num);

date_time_seed();
r=1+rand()%range;


}


printf("%d\n",r);

return(0);
}


i think it is to do with for loop but i dunno who to do it using the input num

can any1 help plz

[swoopy]

Try a for-loop.

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

int main(void)
{
   int range,num,r,i ; 

   printf("Enter the range size(max=20)"); 
   scanf("%d",&range); 
   printf("How many numbers do you wish to generate?"); 
   scanf("%d",&num); 

   srand((unsigned) time(NULL));
   for (i=0; i<num; i++)
   {
      r=1+rand()%range; 
      printf("%d\n",r);
   } 

   return(0); 
}

[pr0ficient]

The way I have always used is:

srand ( time(0) );
var = (int) (rand() / (RAND_MAX + 1.0) * (high - low + 1);

Example:

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

int main()
{
 int randnum, high, low, num, i;
 
 srand( time(0) );
 
 printf("Please enter the range (example 1 - 20): ");
 scanf("%d - %d",&low,&high);

 printf("\nHow many number do you wish to get?: ");
 scanf("%d",&num);

 for (i = 0;i < num;i++)
     {
      randnum = (int) (rand() / (RAND_MAX + 1.0) * (high - low + 1) + low);
      printf("\n%d",randnum);
     }
 return 0;
}