Step 1:
int get(); This is the function prototype for the funtion
get(), it tells the compiler returns an integer value and accept no parameters.
Step 2: const int x = get(); The constant variable x is declared as an integer data type and initialized with the value "20".
The function get() returns the value "20".
Step 3: printf("%d", x); It prints the value of the variable x.
Hence the output of the program is "20".