Compilare: main.cpp: In function 'int main()': main.cpp:72:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 72 | for(int i=1;i<ciclu.size();i++) | ~^~~~~~~~~~~~~ main.cpp:70:10: warning: unused variable 'ok' [-Wunused-variable] 70 | bool ok=1; | ^~