Compilare: user.cpp: In member function ‘void Numar::normalize()’: user.cpp:13:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < c.size() - 1; ++i) { ^ user.cpp:20:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while (c[i] >= BASE && i < c.size()) { ^ user.cpp: In function ‘Numar operator*(const Numar&, int)’: user.cpp:44:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < sol.c.size(); ++i) { ^ user.cpp: In function ‘Numar operator+(const Numar&, const Numar&)’: user.cpp:57:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = lm; i < left.c.size(); ++i) sol.c.push_back(left.c[i]); ^ user.cpp:58:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = lm; i < right.c.size(); ++i) sol.c.push_back(right.c[i]); ^