Compilare: main.cpp: In function 'int main()': main.cpp:47:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(d=0;d < prime.size() && 1LL*prime[d]*prime[d] <= V[i];d++) ~~^~~~~~~~~~~~~~ main.cpp:38:9: warning: unused variable 't' [-Wunused-variable] int t,i,j,d,cate,mask,mask2,pos,ans; ^ main.cpp:38:13: warning: unused variable 'j' [-Wunused-variable] int t,i,j,d,cate,mask,mask2,pos,ans; ^