Certain special characters are represented as escape sequences. An escape sequence begins with a (backslash) followed by an alphanumeric character. For example, the
escape sequence represents the newline character. Note that the two characters of an escape sequence are construed as a single character. Here’s a complete list of the escape sequences in C++:

a /*alert (bell)*/ /*backspace*/f /*formfeed*/
/*newline*/
/*carriage return*/ /*horizontal tab*/v /*vertical tab*/\ /*backslash*/? /*question mark*/’ /*single quote*/” /*double quote*/00 /*octal number*/xhh /*hexadecimal number*/