Question

How to generate 8 digit random number in C

Answer 1

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
  
#define N 20
  
int main(void)
{
    srand((unsigned)time(NULL));
	
	long x = 1000000;
	long y = 99999999;

	for (int i = 0; i < N; i++) 
		printf("%ld\n", rand() % (y - x + 1) + x);
     
    return 0;
}

 
 
/*
run:
 
1022328
1032689
1017893
1018076
1021484
1008525
1011816
1027084
1003252
1027955
1020480
1015082
1008105
1008871
1024815
1032640
1018943
1008347
1016492
1025656

*/

 

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