Compilare: main.cpp: In function 'long long int k_elem(long long int, long long int, long long int, long long unsigned int*, long long unsigned int*, long long int)': main.cpp:52:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int l=st;l<=i;l++) ~^~~ main.cpp:55:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(k>nr_elem+elem_curente-cnt[i] && k<=nr_elem+elem_curente) ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:64:1: warning: control reaches end of non-void function [-Wreturn-type] } ^