Compilare: main.cpp: In function 'int main()': main.cpp:29:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<el>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 29 | for(int j=0;j<v.size();++j) | ~^~~~~~~~~ main.cpp:35:33: warning: narrowing conversion of '(vit + 1)' from 'int' to 'double' [-Wnarrowing] 35 | v.push_back({vit+1 , x.dr , x.cost1+b , x.cost2+d}); | ~~~^~