Compilare: user.cpp: In function ‘void Sort(int, std::vector<int>)’: user.cpp:18:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < x.size(); ++i) ^ user.cpp:29:6: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (l.size()) ^ user.cpp:35:6: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (r.size()) ^ user.cpp:43:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < l.size(); ++i) g << l[i] + 1 << ' '; ^ user.cpp:44:30: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < r.size(); ++i) g << r[i] + 1 << ' '; ^ user.cpp:15:6: warning: variable ‘c’ set but not used [-Wunused-but-set-variable] int c; ^ user.cpp: In function ‘int main()’: user.cpp:52:9: warning: unused variable ‘j’ [-Wunused-variable] int i, j; ^