Compilare: user.cpp: In function ‘bool find(int)’: user.cpp:14:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < table[xmod].size(); i++) { ^ user.cpp: In function ‘void _delete(int)’: user.cpp:30:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < table[xmod].size(); i++) { ^