Compilare: main.cpp: In function 'int isPrime(int, std::vector<int>)': main.cpp:16:18: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<vect.size();i++) ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:34:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<unu.size();i++) ~^~~~~~~~~~~ main.cpp:40:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(i==(unu.size()-1)) ~^~~~~~~~~~~~~~~~ main.cpp:69:34: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(index=0;index<unu.size();index++) ~~~~~^~~~~~~~~~~ main.cpp: In function 'int isPrime(int, std::vector<int>)': main.cpp:21:1: warning: control reaches end of non-void function [-Wreturn-type] } ^