Nodes with dead power supplies

[[1,12],[1,14]]

Nodes with issues

[[1,6],[1,7],[1,9],[1,13]][

[[16,6]]

[[14,12],[14,13],[14,14]]

Working nodes

[[1,10],[],[]]


[[4,10],[],[]]
[[5,7],[5,8],[5,11],[5,13],[5,16],[5,18]]
[[6,6],[6,9],[6,13],[6,16]]
[[7,8],[7,10],[7,11],[7,15],[7,16],[7,18],[7,20]]


[[10,11],[10,16],[10,18]]

[[12,1],[12,5],[12,10]]
[[13,8],[13,10],[13,18],[13,20]]
[[14,10],[14,15],[]]
[[15,9],[15,16],[15,17],[15,18],[15,19]]

[[17,4],[17,7],[17,10],[17,13],[17,16]]
[[18,6],[18,12],[18,13],[18,14],[18,18],[]]
[[19,2],[]]