Problem	mathematics
User	Dolphy
Submission Time	2025-04-07 13:56:58
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

mathematics.cpp: In function ‘int main()’:
mathematics.cpp:37:5: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
37 | cin >> q;
| ^~~
| std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:75,
from mathematics.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
60 | extern istream cin; /// Linked to standard input
| ^~~
mathematics.cpp:38:5: error: ‘cout’ was not declared in this scope; did you mean ‘std::cout’?
38 | cout << fixed << setprecision(40);
| ^~~~
| std::cout
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:75,
from mathematics.cpp:1:
/usr/include/c++/9/iostream:61:18: note: ‘std::cout’ declared here
61 | extern ostream cout; /// Linked to standard output
| ^~~~
mat