Problem	exam
User	BuiNgocDuc
Submission Time	2025-06-16 15:20:10
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

exam.cpp: In function ‘int main()’:
exam.cpp:3:5: error: ‘cin’ was not declared in this scope
3 | cin >> a;
| ^~~
exam.cpp:5:9: error: ‘cout’ was not declared in this scope
5 | cout << "Hello World";
| ^~~~
exam.cpp:9:9: error: ‘cout’ was not declared in this scope
9 | cout << b * c;
| ^~~~
exam.cpp:10:5: error: expected ‘}’ at end of input
10 | }
| ^
exam.cpp:1:12: note: to match this ‘{’
1 | int main() {
| ^