Problem	psle
User	jian
Submission Time	2023-09-07 01:12:10
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

psle.cpp: In function ‘int main()’:
psle.cpp:7:10: error: ‘grade’ was not declared in this scope
7 | cout << grade(s) << endl;
| ^~~~~
psle.cpp: In function ‘const string& grade(int)’:
psle.cpp:21:13: error: ‘x’ was not declared in this scope
21 | } else if (x >= 20) {
| ^