Eroare de compilare: user.cpp: In function ‘void read()’: user.cpp:15: error: ‘scanf’ was not declared in this scope user.cpp:16: error: ‘stdin’ was not declared in this scope user.cpp:16: error: ‘fgets’ was not declared in this scope user.cpp:17: error: ‘strlen’ was not declared in this scope user.cpp: In function ‘void solve()’: user.cpp:51: error: ‘printf’ was not declared in this scope user.cpp: In function ‘int main()’: user.cpp:56: error: ‘stdin’ was not declared in this scope user.cpp:56: error: ‘freopen’ was not declared in this scope user.cpp:57: error: ‘stdout’ was not declared in this scope