correct1.c

#include "pilib.h"


/* program */ 

int limit, num, counter; 
int prime(int n)
{
int i; 
int y; 
if (n < 0) 
 result = prime (-n); 
else if(n < 2) 
result = 0; 
else if(n == 2) 
result = 1; 
else if (n % 2 == 0) 
 result = 0; 
else 
{
i = 3;
isPrime = 1;
while(isPrime) 
{
isPrime = n % i != 0;
i = i + 2;
}
result = isPrime;
}
return result;
}

int main() {
limit = readInt ();
counter = 0;
num = 2;
while(num <= limit) 
{
if (prime (num))
{
counter = counter + 1;
writeInt (num);
writeString (" ");
}
num = num + 1;
} 
writeString ("\n");
writeString (counter);
}