Problem	addition
User	yikai
Submission Time	2026-02-11 18:12:20
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

addition.cpp: In function ‘int main()’:
addition.cpp:3:2: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
3 | cin >> a >> b;
| ^~~
| std::cin
In file included from addition.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
60 | extern istream cin; /// Linked to standard input
| ^~~
addition.cpp:3:9: error: ‘a’ was not declared in this scope
3 | cin >> a >> b;
| ^
addition.cpp:3:14: error: ‘b’ was not declared in this scope
3 | cin >> a >> b;
| ^
addition.cpp:4:2: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
4 | cout a+b;
| ^~~~
| std::cout
In file included from addition.cpp:1:
/usr/include/c++/9/iostream:61:18: note: ‘std::cout’ declared here
61 | extern ostream cout; /// Linked to standard output