random number in c++

// C program to generate random numbers 
#include <stdio.h> 
#include <stdlib.h> 
#include<time.h> 
  
// Driver program 
int main(void) 
{ 
    // This program will create different sequence of  
    // random numbers on every program run  
  
    // Use current time as seed for random generator 
    srand(time(0)); 
  
    for(int i = 0; i<5; i++) 
        printf(" %d ", rand()); 
  
    return 0; 
} 
v1 = rand() % 100;         // v1 in the range 0 to 99
v2 = rand() % 100 + 1;     // v2 in the range 1 to 100
v3 = rand() % 30 + 1985;   // v3 in the range 1985-2014 rand() % (max_number + 1 - minimum_number) + minimum_numberGuess the number (1 to 10): 5
The secret number is higher
Guess the number (1 to 10): 8
The secret number is lower
Guess the number (1 to 10): 7
Congratulations!
/* rand example: guess the number */
#include <stdio.h>      /* printf, scanf, puts, NULL */
#include <stdlib.h>     /* srand, rand */
#include <time.h>       /* time */

int main ()
{
  int iSecret, iGuess;

  /* initialize random seed: */
  srand (time(NULL));

  /* generate secret number between 1 and 10: */
  iSecret = rand() % 10 + 1;

  do {
    printf ("Guess the number (1 to 10): ");
    scanf ("%d",&iGuess);
    if (iSecret<iGuess) puts ("The secret number is lower");
    else if (iSecret>iGuess) puts ("The secret number is higher");
  } while (iSecret!=iGuess);

  puts ("Congratulations!");
  return 0;
}