Predictyourage!.cpp

#include<iostream>
#include<algorithm>
#include<cmath>
#include<vector>
using namespace std;
/*قال الله تعالى: {اللَّهُ يَتَوَفَّى الْأَنْفُسَ حِينَ مَوْتِهَا وَالَّتِي لَمْ تَمُتْ
فِي مَنَامِهَا فَيُمْسِكُ الَّتِي قَضَى عَلَيْهَا الْمَوْتَ وَيُرْسِلُ
الْأُخْرَى إِلَى أَجَلٍ مُسَمًّى إِنَّ فِي ذَلِكَ لَآيَاتٍ لِقَوْمٍ يَتَفَكَّرُونَ}.
*/
int predictAge(int age1, int age2, int age3, int age4, int age5, int age6, int age7, int age8)
{
    return (sqrt((age1 * age1) + (age2 * age2) + (age3 * age3) + (age4 * age4) + (age5 * age5) + (age6 * age6) + (age7 * age7) + (age8 * age8))) / 2;
}
int main() {
    cout << predictAge(65, 60, 75, 55, 60, 63, 64, 45);
    return 0;
}
/*Description:

My grandfather always predicted how old people would get, and right before he passed away he revealed his secret!

In honor of my grandfather's memory we will write a function using his formula!

    Take a list of ages when each of your great-grandparent died.
    Multiply each number by itself.
    Add them all together.
    Take the square root of the result.
    Divide by two.

Example

predictAge(65, 60, 75, 55, 60, 63, 64, 45) === 86

Note: the result should be rounded down to the nearest integer.

Some random tests might fail due to a bug in the JavaScript implementation. Simply resubmit if that happens to you.
Fundamentals*/