Problem	addition
User	Ningja
Submission Time	2023-11-08 09:54:47
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

addition.cpp:4:5: error: cannot declare ‘::main’ to be a global variable
4 | int main {
| ^~~~
addition.cpp:5:2: error: expected primary-expression before ‘int’
5 | int a,b;
| ^~~
addition.cpp:5:2: error: expected ‘}’ before ‘int’
addition.cpp:4:10: note: to match this ‘{’
4 | int main {
| ^
addition.cpp:6:7: error: ‘cin’ in namespace ‘std’ does not name a type
6 | std::cin >> a >> b;
| ^~~
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:7:7: error: ‘cout’ in namespace ‘std’ does not name a type
7 | std::cout << a+b;
| ^~~~
In file included from addition.cpp:1:
/usr/include/c++/9/iostream:61:18: note: ‘std::cout’ declared here
61 | extern ostream cout; /// Linked t