How can i print output with a specific number of digits after decimal in cpp

Answer 1

Include <iomanip> header, then look at `std::fixed` and `std::setprecision()`

double number {12345.6789};

std::cout << std::fixed << std::setprecision(2) << number << std::endl;

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