Compilare: main.cpp: In function 'int main()': main.cpp:49:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 49 | for(int i=1;i<l.size();i++) | ~^~~~~~~~~ main.cpp:56:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for(int i=1;i<c.size();i++) | ~^~~~~~~~~ main.cpp:84:9: warning: unused variable 'ap' [-Wunused-variable] 84 | int ap =0; | ^~