Compilare: user.cpp: In function ‘void Citire()’: user.cpp:15:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=1;i<=n;i++) ^ user.cpp: In function ‘long long int NrSecvente(int)’: user.cpp:26:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=1;j<=n;j++) ^ user.cpp:29:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(M.size()>k) ^ user.cpp:40:12: warning: ‘cnt’ may be used uninitialized in this function [-Wmaybe-uninitialized] return cnt; ^