Compilare: main.cpp: In function 'int main()': main.cpp:53:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 53 | if (pos == v.size()) | ~~~~^~~~~~~~~~~ main.cpp:51:17: warning: unused variable 'ok' [-Wunused-variable] 51 | int ok = 1; | ^~ main.cpp: In function 'void makeCiur(int)': main.cpp:23:18: warning: 'ver' may be used uninitialized [-Wmaybe-uninitialized] 23 | for(int i=ver+2;i<=nr;i+=2){ | ~~~^~ main.cpp:10:26: note: 'ver' was declared here 10 | int *v=new int[nr+4],ver; | ^~~