Eroare de compilare: user.cpp: In function ‘int hatvany(int, unsigned int)’: user.cpp:6:5: error: default argument missing for parameter 2 of ‘int hatvany(int, unsigned int)’ int hatvany(int x = 3, unsigned int y) ^ user.cpp:11:25: error: ‘power’ was not declared in this scope temp = power(x, y/2); ^ user.cpp: In function ‘int main(int, const char**)’: user.cpp:27:23: error: ‘hatvanyoz’ was not declared in this scope out << hatvanyoz(k-1); ^