Compilare: main.cpp: In function 'int main()': main.cpp:34:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(k<p.size()&&(long long)p[k]*p[k]<=B) ~^~~~~~~~~ main.cpp:44:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation] if(B!=1) ^~ main.cpp:45:36: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if' v.push_back(B); for(int i=0;i<(1<<v.size());i++) ^~~ main.cpp:48:26: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<v.size();j++) ~^~~~~~~~~