human
In c++ when using printf() can you tell me all of the different variable types I can use, like %i, %f, etc.
gpt
Here's a list of all the format specifiers supported by the printf function in C++:

%d or %i - Prints an integer in decimal
%u - Prints an unsigned integer in decimal
%f - Prints a floating-point number
%c - Prints a single character
%s - Prints a string of characters
%x or %X - Prints an integer in hexadecimal format
%o - Prints an integer in octal format
%p - Prints a pointer address
%e or %E - Prints a floating-point number in scientific notation
%g or %G - Prints the shorter of %f or %e
%a or %A - Prints a floating-point number in hexadecimal scientific notation
%n - Writes the number of characters written so far to an integer pointer argument
%ld or %li - Prints a long integer
%lu - Prints an unsigned long integer
%lld or %lli - Prints a long long integer
%llu - Prints an unsigned long long integer
%h - Indicates that the following integer argument is short
%L - Indicates that the following floating-point argument is a long double

Note that all compilers or platforms may not support some format specifiers. The best way to ensure compatibility is to consult the documentation for your current compiler.