점수: 12

Fatal error: Uncaught Error: Call to undefined function ptint_grade() in /users/2018/i1858011/public_html/2019/webprog/ch08/exam08-06.php:34 Stack trace: #0 {main} thrown in /users/2018/i1858011/public_html/2019/webprog/ch08/exam08-06.php on line 34