Д. М. Златопольский (10.20.)

#include <iostream>
using namespace std;

int SumOfThree(int m) {

    int sum = ((m / 100) % 10) + ((m / 10) % 10) + (m % 10);

    return sum;
}

int main()
{

    int k = 0;
    for (int i = 100000; i < 999999; i++) {
        if (SumOfThree(i/1000) == SumOfThree(i%1000)) {
            k++;
            cout << i << " <---- happy number " << endl;
        }
    }
    cout << k << " - amount of 6-digit happy numbers ";


    /* без функции

    int a, b, c, d, e, f;
    int k = 0;
    for (int i = 100000; i < 999999; i++)
    {
        a = i / 100000;
        b = (i / 10000) % 10;
        c = (i / 1000) % 10;
        d = (i / 100) % 10;
        e = (i / 10) % 10;
        f = i % 10;

        if(a + b + c == d + e + f){
            k++;
            cout << i << " <---- happy number " << endl;
        }
    }
    cout << k << " - amount of happy numbers ";*/


}