Compilare: main.cpp: In function 'bool e_prim(int)': main.cpp:16:15: warning: suggest parentheses around comparison in operand of '&' [-Wparentheses] if(n&i==0) return 0; ~^~~ main.cpp: In function 'int main()': main.cpp:26:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0; i<divizori_primi.size(); i++) cout<<divizori_primi[i]<<"\n"; ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:32:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<divizori_primi.size() && cnt<k; i++) ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:43:23: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(j=0; j<divizori_primi.size() && cnt<k; j++) ~^~~~~~~~~~~~~~~~~~~~~~