Compilare: user.cpp:6:48: warning: integer overflow in expression [-Woverflow] unsigned long long MAX_NR = 1024 * 1024 * 1024 * 1024 * 1024 * 1024 * 4; ~~~~~~~~~~~~~~~~~~~^~~~~~ user.cpp: In function ‘void Remove(long long unsigned int, int)’: user.cpp:14:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < v [poz].size (); i ++){ ~~^~~~~~~~~~~~~~~~~ user.cpp: In function ‘int main()’: user.cpp:60:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 1; i < v [index].size (); i ++){ ~~^~~~~~~~~~~~~~~~~~~ user.cpp:52:21: warning: ‘index’ may be used uninitialized in this function [-Wmaybe-uninitialized] int index; ^~~~~