#Printing
##getchar and putchar
Each time getchar() is called, it reads the next input character from the
text stream. In our command line programs, the stream of text input will come
from a user typing into the terminal.
// Reads a character entered from the keyboard
c = getchar();To print characters one at a time, use putchar().
// If the variable 'c' is a character, it will print that character to the
// terminal output.
putchar(c);##puts
To print out a statement on the command line, puts will do the trick.
puts("Hello world.");##printf
The printf() function is used to display formatted output. It replaces
format characters with the values of variables.
printf("My favorite integer is %i", 7);You can include as many parameters as you like when calling printf(),
but make sure you have a matching % format character for each one.