Compilare: user.cpp: In function ‘void update_aib(std::vector<int>&, int, const int&)’: user.cpp:22:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( poz < aib.size() ){ ^ user.cpp: In function ‘void init(int, int, int)’: user.cpp:58:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( p1 < num[nodst].size() && p2 < num[noddr].size() ){ ^ user.cpp:58:57: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( p1 < num[nodst].size() && p2 < num[noddr].size() ){ ^ user.cpp:67:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( p1 < num[nodst].size() ) num[nod][++in] = num[nodst][p1++]; ^ user.cpp:68:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ( p2 < num[noddr].size() ) num[nod][++in] = num[noddr][p2++]; ^