Conversion from 10 base number to any other base without using function and arrays

Question

How can I write it's program in c++?!

Answer 1

"To any other base" is not completely feasible, without writing your own helper function, or using language built-in feature e.g. std::bitset for binary conversion.

However, you can format decimal integer in octal or hexadecimal using std::oct or std::hex

int decimal {2022};
std::cout << std::oct << decimal << '\n';
std::cout << std::hex << decimal << '\n';

References:
https://en.cppreference.com/w/cpp/io/manip/fixed

https://en.cppreference.com/w/cpp/io/manip/hex