Compilare: main.cpp: In function 'double bfs(std::vector<std::vector<std::vector<double> > >&)': main.cpp:64:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::vector<double> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 64 | for(int i=0;i<graph[k.index].size();i++) | ~^~~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:102:37: warning: narrowing conversion of 'j' from 'int' to 'double' [-Wnarrowing] 102 | graph[i].push_back({j}); | ^ main.cpp:102:37: warning: narrowing conversion of 'j' from 'int' to 'double' [-Wnarrowing] main.cpp:103:37: warning: narrowing conversion of 'i' from 'int' to 'double' [-Wnarrowing] 103 | graph[j].push_back({i}); | ^ main.cpp:103:37: warning: narrowing conversion of 'i' from 'int' to 'double' [-Wnarrowing]