What is wrong with my source file that it will not compile? // Is Prime Function // Author: Lila Bailey // Date: 11/03/2016 #include \"time.h\" #include #include using namespace std; // Function Prototype bool isPrime(int); int main() { // Variable declaration fstream outfile(int); int num; // Open an output file outfile.open(\"primesBefore100.txt\") //Repeat loop 100 times for (int num = 1; num <= 100; num++) { //call isPrime function with each variable if (isPrime(num)) outfile << num << endl; } //close output file outfile.close(int); system(\"pause\"); return 0; } //************************************************************** // The isPrime function determines whether a number is prime. * // It displays \"Is a prime number\" or \"Is not a prime number\" * //************************************************************** bool isPrime(int num) { int count = 0; for (int i = 2; i <= num / 2; i++) { if (num%i == 0) count++; } if (count > 0) return false; else return true; } Solution Hi, I have fixed the issue It is working fine now and highlighted the code changes beow. #include \"time.h\" #include #include using namespace std; // Function Prototype bool isPrime(int); int main() { // Variable declaration ofstream outfile; int num; // Open an output file outfile.open(\"primesBefore100.txt\"); //Repeat loop 100 times for (int num = 1; num <= 100; num++) { //call isPrime function with each variable if (isPrime(num)) outfile << num << endl; } //close output file outfile.close(); system(\"pause\"); return 0; } //************************************************************** // The isPrime function determines whether a number is prime. * // It displays \"Is a prime number\" or \"Is not a prime number\" * //************************************************************** bool isPrime(int num) { int count = 0; for (int i = 2; i <= num / 2; i++) { if (num%i == 0) count++; } if (count > 0) return false; else return true; } Output: primesBefore100.txt 1 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97.

1. What is wrong with my source file that it will not compile?
// Is Prime Function
// Author: Lila Bailey
// Date: 11/03/2016
#include "time.h"
#include
#include
using namespace std;
// Function Prototype
bool isPrime(int);
int main()
{
// Variable declaration
fstream outfile(int);
int num;
// Open an output file
outfile.open("primesBefore100.txt")
//Repeat loop 100 times
for (int num = 1; num <= 100; num++)
{
//call isPrime function with each variable
if (isPrime(num))
outfile << num << endl;
}
//close output file
outfile.close(int);
system("pause");
return 0;
}
//**************************************************************
// The isPrime function determines whether a number is prime. *
// It displays "Is a prime number" or "Is not a prime number" *
//**************************************************************
bool isPrime(int num)
{

2. int count = 0;
for (int i = 2; i <= num / 2; i++)
{
if (num%i == 0)
count++;
}
if (count > 0)
return false;
else
return true;
}
Solution
Hi,
I have fixed the issue It is working fine now and highlighted the code changes beow.
#include "time.h"
#include
#include
using namespace std;
// Function Prototype
bool isPrime(int);
int main()
{
// Variable declaration
ofstream outfile;
int num;
// Open an output file
outfile.open("primesBefore100.txt");
//Repeat loop 100 times
for (int num = 1; num <= 100; num++)
{
//call isPrime function with each variable
if (isPrime(num))
outfile << num << endl;
}

3. //close output file
outfile.close();
system("pause");
return 0;
}
//**************************************************************
// The isPrime function determines whether a number is prime. *
// It displays "Is a prime number" or "Is not a prime number" *
//**************************************************************
bool isPrime(int num)
{
int count = 0;
for (int i = 2; i <= num / 2; i++)
{
if (num%i == 0)
count++;
}
if (count > 0)
return false;
else
return true;
}
Output:
primesBefore100.txt
1
2
3
5
7
11
13
17
19
23
29
31

4. 37
41
43
47
53
59
61
67
71
73
79
83
89
97