fibocheck cpp

// PROGRAM TO CHECK IF A NUMBER IF A FIBONACCI NUMBER OR NOT

#include<iostream>
#include<math.h>
using namespace std;

// method to check if the number is a perfect squre or not
bool isPerfect(int num){
    int n = sqrt(num);
    if(n*n == num){
        return true;
    }else{
        return false;
    }
}

// method to check if a number appears in fibonacci series or not
bool isFibonacci(int num){

    // calculating numbers to check if they are perfect squares or not
    int temp1 = 5*num*num - 4;
    int temp2 = 5*num*num + 4;
    if(isPerfect(temp1) || isPerfect(temp2)){
        return true;
    }else{
        return false;
    }
}

// main method
int main(){
    int myList[] = {22, 15, 5, 8, 21, 34, 38, 75, 55, 89};
    for(int i=0; i<10; i++){
        bool fibo = isFibonacci(myList[i]);
        if(fibo){
            cout<<myList[i]<<" is a Fibonacci number."<<endl;
        }else{
            cout<<myList[i]<<" is not a Fibonacci number."<<endl;
        }
    }
}