[chueh]

Can anyone explain how this happens about this simple game?

http://www.regiftable.com/RegiftingRobinPopUp.html

The numbers are in my head, and I did not mouse over the number, so how did it happen?

Thanks

[burnthepc]

I googled the answer... wish I hadn't. It's not that hard to work out. If you like maths problems give it a try. The link below is a spoiler!

http://www.bored.com/forum/archive/i...hp/t-7601.html

See post of SharinganGuitargod

[chueh]

Thanks, burnthepc. Well, I know a little about programming. It it were about programming trick, I would probably get it. Now, it's math.... oh No.......

[-Fabez-]

I made this program below to demonstrate that the answer is always a multiple of nine, meaning that all squares on the grid that are multiples of nine will have the same object in. This enables the program to be right every time.

#include <iostream>

using namespace std;

int main(){
    int CurrentNumberTens = 1;
    int CurrentNumberUnits = 0;
    int CurrentNumber = 10;
    while (CurrentNumber <= 99){
        cout << "CurrentNumber: " << CurrentNumber << "\tResult: " << (CurrentNumber - (CurrentNumberTens + CurrentNumberUnits ))<< endl;
        CurrentNumberUnits += 1;
        if (CurrentNumberUnits == 10){
            CurrentNumberUnits = 0;
            CurrentNumberTens +=1;
        }
        CurrentNumber = (CurrentNumberTens * 10) + CurrentNumberUnits;
    }
    getchar();
}

[chueh]

Fabez. You are such a genius.