Introduction - If you have any usage issues, please Google them yourself
The number guessing cout &l t " Guess the Number \ n" < " rules: 1. Enter a positive integer of 0 to 9 \ n" < < " number can not be a positive integer \ n" < < " 3. Enter four digits ( can not be repeated) \ n " < < 4.A = seat and figures on the \ n" < < " 5.B = digital but the seat does not \ n" < < " PS. input: 0000 for title \ n input " < < " : 3166 left Caishuozi \ n " < < " Enter 9958 for help \ n " < < " each number separated by a space \ n " < < " Ex: 0 9 7 8 \ n "