Eroare de compilare: user.cpp:1:17: stdio: No such file or directory user.cpp: In function `int main()': user.cpp:9: error: `stdin' undeclared (first use this function) user.cpp:9: error: (Each undeclared identifier is reported only once for each function it appears in.) user.cpp:9: error: `freopen' undeclared (first use this function) user.cpp:10: error: `stdout' undeclared (first use this function) user.cpp:11: error: `scanf' undeclared (first use this function) user.cpp:25: warning: converting to `int' from `double' user.cpp:36: warning: converting to `int' from `double' user.cpp:37: warning: converting to `int' from `double' user.cpp:43: warning: converting to `int' from `double' user.cpp:44: error: `printf' undeclared (first use this function)