Compilare: user.cpp:25:18: warning: multi-character character constant [-Wmultichar] g << '-1'; ^ user.cpp:41:26: warning: multi-character character constant [-Wmultichar] g << '-1'; ^ user.cpp: In function ‘int main()’: user.cpp:52:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i = 0; i < poz.size(); i++) ^