Eroare de compilare: user.cpp: In member function ‘bool punct::operator<(const punct&) const’: user.cpp:19: warning: suggest parentheses around ‘&&’ within ‘||’ user.cpp: In function ‘int main()’: user.cpp:67: error: ‘stdin’ was not declared in this scope user.cpp:67: error: ‘freopen’ was not declared in this scope user.cpp:68: error: ‘stdout’ was not declared in this scope user.cpp:70: error: ‘scanf’ was not declared in this scope user.cpp:89: error: ‘printf’ was not declared in this scope user.cpp:101: error: ‘printf’ was not declared in this scope