Eroare de compilare: main.cpp: In function 'void read()': main.cpp:57:14: error: request for member 'push_back' in 'v.std::vector<_Tp, _Alloc>::operator[]<int, std::allocator<int> >(((std::vector<int>::size_type)x))', which is of non-class type '__gnu_cxx::__alloc_traits<std::allocator<int> >::value_type {aka int}' v[x].push_back(y); ^~~~~~~~~ main.cpp: In function 'bool bfs(int, int)': main.cpp:73:25: error: 'begin' was not declared in this scope for(int i: v[nod]){ ^ main.cpp:73:25: note: suggested alternatives: In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95:0, from main.cpp:1: /usr/include/c++/6/valarray:1206:5: note: 'std::begin' begin(const valarray<_Tp>& __va) ^~~~~ /usr/include/c++/6/valarray:1206:5: note: 'std::begin' main.cpp:73:25: error: 'end' was not declared in this scope for(int i: v[nod]){ ^ main.cpp:73:25: note: suggested alternatives: In file included from /usr/include/x86_64-linux-gnu/c++/6/bits/stdc++.h:95:0, from main.cpp:1: /usr/include/c++/6/valarray:1226:5: note: 'std::end' end(const valarray<_Tp>& __va) ^~~ /usr/include/c++/6/valarray:1226:5: note: 'std::end' Non zero exit status: 1