Problem	exam
User	zq
Submission Time	2026-11-07 16:06:44
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

exam.cpp: In function ‘int main()’:
exam.cpp:5:7: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
5 | std:;cin >> qn;
| ^~~
| std::cin
In file included from exam.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
60 | extern istream cin; /// Linked to standard input
| ^~~
exam.cpp:7:3: error: duplicate label ‘std’
7 | std:/cout << "Hello World";
| ^~~
exam.cpp:7:7: error: expected primary-expression before ‘/’ token
7 | std:/cout << "Hello World";
| ^
exam.cpp:7:8: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
7 | std:/cout << "Hello World";
| ^~~~
| std::cout
In file included from exam.cpp:1:
/usr/include/c++/9/iostream:61:18: note: ‘std::cout’ declared here
61 | extern ostream cout; /// Linked to standar