Compilare: main.cpp: In function 'int main()': main.cpp:43:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 43 | for(int i=0;i<la[next].v.size();i++) | ~^~~~~~~~~~~~~~~~~~ main.cpp:44:24: warning: 'next' may be used uninitialized in this function [-Wmaybe-uninitialized] 44 | if(sol[next]+la[next].v[i].second < sol[la[next].v[i].first]) | ~~~~~~~~^