Thread: For loop fibonacci and prime number getting program not working

I have two programs, a program that outputs the Fibonacci sequence with for loops, and a program that determines if a entered number is prime. The Fibonacci one prints the incorrect result, and the prime number one has incorrect output and the result seems to be based on the return statements. Here is my code:

For Fibonacci:

Code:

#include <iostream>
using namespace std;
int main ( ) {
    int count = 0;
    cout << "This program lists the Fibonacci sequence." << endl;
    cout << "How many terms? ";
    cin >> count;
    int tracker = 0;
            cout << "F(0) = " << tracker << endl;
            tracker = 1;
            cout << "F(1) = " << tracker << endl;
    for(int track = 2; track < count; track++) {
            int output = tracker + track;
            int ovar = track;
            ovar = tracker;
            output = ovar + tracker;
            cout << "F(" << track;
            cout << ") = " << output;
            cout << "" << endl;
            
            }
            }

for Prime numbers:

Code:

#include <iostream>
using namespace std;
bool isPrime(int prime) {
     while(true) { 
         int track;
         track++;
         if(prime > track) {
                if(prime / track - 1 == 0) {
                         return 1; // I don't know what to return, this is a placeholder          
                         }
                         else {
                              return 0; // placeholder
                              }
                              
                              }
                              
                              else {
                                   break;
                                   }
                                   }
                                   }
     int main ( ) {
         int number;
         cout << "Enter number: ";
         cin >> number;
         cout << "" << endl;
         cout << isPrime(number);
         if ( isPrime(number) ) {
         cout << number << " is not prime.";
         }
         else {
         cout << number << " is prime.";
         return 0;
         }
         
         
         }

Please help. Also, do NOT post complete code as a reply, only help.

Any other help?

I don't fully understand the problem.

Have you learn recursion yet? This would be a great problem for that!!!!

If you have not learned that yet get a piece of paper and write down what is happening in the loop or use breaks in your compiler.

If you do not fully understand the problem you are solving you will waste your time looking for an easy to find solution to jump out at you on google.