Eroare de compilare: user.c: In function ‘pow3’: user.c:27:17: error: ‘x’ undeclared (first use in this function) long long x1 = x; ^ user.c:27:17: note: each undeclared identifier is reported only once for each function it appears in user.c:46:5: warning: ‘main’ is normally a non-static function [-Wmain] int main() ^ user.c:59:1: error: expected declaration or statement at end of input } ^ user.c:59:1: warning: control reaches end of non-void function [-Wreturn-type] } ^