cppNumSumAvgZeroes

#include <iostream>

int main()
{
    int num{12345};

    int digitsCount{ 0 };
    int digitsSum{ 0 };
    float digitsAvg{ 0 };
    int zeroCount{ 0 };

    char menu{ 'x' };
    do
    {
        std::cout << "a - Enter new number to get statistics for\nb - Get digits count\nc - Get digits sum\nd - Get digits avg\ne - Get zeroes count\nx - Exit\n";
        std::cin >> menu;

        if (menu == 'a')
        {
            std::cout << "Enter new numger:\n";
            std::cin >> num;

            digitsSum = 0;
            digitsAvg = 0;

            if (num)
            {
                for (digitsCount = 0, zeroCount = 0; num; ++digitsCount, num /= 10)
                {
                    int digit{ num % 10 };
                    digitsSum += digit;
                    if (digit == 0) { ++zeroCount; }
                }
                digitsAvg = (float)digitsSum / digitsCount;
            }
            else
            {
                digitsCount = 1;
                zeroCount = 1;
            }
        }
        else if (menu == 'b') { std::cout << "Digits count: " << digitsCount << '\n'; }
        else if (menu == 'c') { std::cout << "Digits sum: " << digitsSum << '\n'; }
        else if (menu == 'd') { std::cout << "Digits avg: " << digitsAvg << '\n'; }
        else if (menu == 'e') { std::cout << "Zeroes count: " << zeroCount << '\n'; }
        else if (menu == 'x') { std::cout << "Exiting...\n"; break; }
        else { std::cout << "Invalid menu item! Try again!\n"; }
    }while (menu != 'x');
    return 0;
}