My requirement is to print x numbers of prime integer. So my code starts off by asking user to input a number, e.g. 7, I want it to produce 7 prime numbers.

I've now coded to a step where it produces all the prime numbers that are less than 50. But how do I code it in a way that I only want it to output, in this case, 7 prime numbers ?

I've searched up but I do not understand other people's code. I will appreciate if you can edit from my code and guide me through explanation. Thank you

#include <stdio.h>
int main(void)
{
    int x,y,z;

    printf("Input a number: ");
    scanf("%d", &x);

      for (z=2; z<=50; z  )
        {
            for (y=2; y<=z; y  )
            {
                if (z%y==0)
                    break;
            }
            if (z==y)
            printf("%d\n", z);
            
        }
}

CodePudding user response：

Add a "prime number counter"

#include <stdio.h>
int main(void)
{
    int x,y,z;
    int primes = 0; // no primes found so far

    printf("Input a number: ");
    scanf("%d", &x);

      for (z=2; z<=50; z  )
        {
            for (y=2; y<=z; y  )
            {
                if (z%y==0)
                    break;
            }
            if (z==y) {
                printf("%d\n", z);
                primes  = 1; // found a prime
            }

            if (primes == x) break; // stop z loop after x primes
            
        }
}