@justingraham/

# Regional 2016 - Generating Fibonacci/Perfect

## No description

Files
• main.cpp
main.cpp
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```
```//NOTE TO GRADER:
//This is just a sample source code. Contestant code may differ.
//****************************************************************
//MAIN
//****************************************************************
// Regional2015FibonacciPerfectNumbers.cpp
//This program displays a menu to generate Fibonacci numbers and perfect numbers.
#include <iostream>
using namespace std;

void generateFibonacciNumbers();
void generatePerfectNumbers();

int main()
{
int option; // user's entered option will be saved in this variable
do //do-while loop starts here.that display menu again and again until user select to exit program
{
cout << "***********************************\n";
cout << " Special Number Generator\n";
cout << "***********************************\n";
cout << " 1) Calculate Fibonacci Numbers " << endl;
cout << " 2) Calculate Perfect Numbers " << endl;
cout << " 3) Exit Program " << endl;
//Prompting user to enter an option according to menu
cout << " Please select an option : ";
cin >> option; // taking option value as input and saving in variable "option"
if(option == 1) // Checking if user selected option 1
{
//Call Fibonacci Method
generateFibonacciNumbers();
}
else if(option == 2) // Checking if user selected option 2
{
//Call Perfect Number Method
generatePerfectNumbers();
}
else if(option == 3) // Checking if user selected option 4
{
cout << "Terminating Program" << endl;
}
else //if user has entered invalid choice (other than 1,2,3 or 4)
{
//Displaying error message
cout << "Invalid Option entered" << endl;
}
}

while(option != 3); //condition of do-while loop

return 0;
}

void generateFibonacciNumbers()
{
cout << "\n";
//Calculate and output the first 20 Fibonacci numbers. (Assume it starts with 1).
int max, current, first = 1, second = 1;
double next;
max = 20;
for (current = 0 ; current < max ; current++)
{
if (current <= 1)
{
next = 1;
}
else
{
next = first + second;
first = second;
second = next;
}
cout << " Fibonacci # " << current + 1 << " is: " << next << endl;
}

cout << "\nEnter anything in to continue . . .";
}

void generatePerfectNumbers()
{
int i = 1, sum = 0;
cout << "\n";
cout << " Here are all the perfect numbers less than 1000.\n";
//Output all perfect numbers less than 1000.
for (int num = 1; num < 1000; num++)
{
while(i < num)
{
//Check for factors of current number, if factor is found, add it tothe sum
if(num % i == 0)
{
sum = sum + i;
}
i++;
}
if(sum == num)
{
cout << " " << num << endl;
}
i = 1; //reset i
sum = 0; //reset sum to check next number
}