10 --> 2 21 --> 1 3 4 32 --> 1 3 4 43 --> 1 4 54 --> 0 1 60 --> 2 71 --> 1 3 4 82 --> 1 3 4 93 --> 1 4 104 --> 0 1 11distances: 0 2 1 2 2 12parent[0] = 0 13parent[1] = 2 14parent[2] = 0 15parent[3] = 2 16parent[4] = 2 17