제출 #133626

실행 실패 (제출 코드 컴파일 에러)

Main.cpp: In function ‘int main()’:
Main.cpp:10:15: error: ‘strlen’ was not declared in this scope
   10 |     int len = strlen(isbn);
      |               ^~~~~~
Main.cpp:3:1: note: ‘strlen’ is defined in header ‘<cstring>’; did you forget to ‘#include <cstring>’?
    2 | #include <cmath>
  +++ |+#include <cstring>
    3 |