DEC to BIN and to HEX

#include <iostream>

using std::cout;
using std::cin;
using std::endl;

/*
void main()
{
    const int size = 33;
    int binary[size], decimal = (setlocale(LC_ALL, "Russian"), cout << "Введите десятичное число -> ", cin >> decimal, cout << endl, decimal);
    int i = size - 1;

while (i != -1)
{
    binary[i] = decimal % 2;
    decimal = (decimal - binary[i]) / 2;

    i--;
}

for (int i = 1; i < size; ((i % 8 == 0) ? cout << binary[i] << "  " : (i % 4 == 0) ? cout << binary[i] << " " : cout << binary[i]), i++);

cout << endl << endl;
}
*/




void main()
{
    const int size = 9;
    int decimal = (setlocale(LC_ALL, "Russian"), cout << "Введите десятичное число -> ", cin >> decimal, cout << endl, decimal);
    char hexadecimal[size];

    int i = size - 1;
    while (i != -1)
    {
        hexadecimal[i] = decimal % 16;
        decimal = (decimal - hexadecimal[i]) / 16;

        i--;
    }

    for (int i = 1; i < size; ((hexadecimal[i] == 10) ? cout << 'A' : (hexadecimal[i] == 11) ? cout << 'B' : (hexadecimal[i] == 12) ? cout << 'C' : (hexadecimal[i] == 13) ? cout << 'D' : (hexadecimal[i] == 14) ? cout << 'E' : (hexadecimal[i] == 15) ? cout << 'F' : (i % 4 == 0) ? cout << (int)hexadecimal[i] << " " : cout << (int)hexadecimal[i]), i++);

    cout << endl << endl;
    }