2016 day22 setup

3 files changed, 1049 insertions, 2 deletions

diff --git a/src/2016/day22/README.md b/src/2016/day22/README.md
index e69de29..a611359 100644
--- a/src/2016/day22/README.md
+++ b/src/2016/day22/README.md
@@ -0,0 +1,21 @@
+--- Day 22: Grid Computing ---
+
+You gain access to a massive storage cluster arranged in a grid; each storage node is only connected to the four nodes directly adjacent to it (three if the node is on an edge, two if it's in a corner).
+
+You can directly access data only on node /dev/grid/node-x0-y0, but you can perform some limited actions on the other nodes:
+
+    You can get the disk usage of all nodes (via df). The result of doing this is in your puzzle input.
+    You can instruct a node to move (not copy) all of its data to an adjacent node (if the destination node has enough space to receive the data). The sending node is left empty after this operation.
+
+Nodes are named by their position: the node named node-x10-y10 is adjacent to nodes node-x9-y10, node-x11-y10, node-x10-y9, and node-x10-y11.
+
+Before you begin, you need to understand the arrangement of data on these nodes. Even though you can only move data between directly connected nodes, you're going to need to rearrange a lot of the data to get access to the data you need. Therefore, you need to work out how you might be able to shift data around.
+
+To do this, you'd like to count the number of viable pairs of nodes. A viable pair is any two nodes (A,B), regardless of whether they are directly connected, such that:
+
+    Node A is not empty (its Used is not zero).
+    Nodes A and B are not the same node.
+    The data on node A (its Used) would fit on node B (its Avail).
+
+How many viable pairs of nodes are there?
+
diff --git a/src/2016/day22/input b/src/2016/day22/input
index e69de29..ffcc4a6 100644
--- a/src/2016/day22/input
+++ b/src/2016/day22/input
@@ -0,0 +1,1026 @@
+root@ebhq-gridcenter# df -h
+Filesystem              Size  Used  Avail  Use%
+/dev/grid/node-x0-y0     94T   72T    22T   76%
+/dev/grid/node-x0-y1     88T   73T    15T   82%
+/dev/grid/node-x0-y2     88T   65T    23T   73%
+/dev/grid/node-x0-y3     85T   72T    13T   84%
+/dev/grid/node-x0-y4     91T   68T    23T   74%
+/dev/grid/node-x0-y5     88T   67T    21T   76%
+/dev/grid/node-x0-y6     94T   71T    23T   75%
+/dev/grid/node-x0-y7     94T   64T    30T   68%
+/dev/grid/node-x0-y8     93T   67T    26T   72%
+/dev/grid/node-x0-y9     87T   64T    23T   73%
+/dev/grid/node-x0-y10    91T   68T    23T   74%
+/dev/grid/node-x0-y11    94T   66T    28T   70%
+/dev/grid/node-x0-y12    89T   66T    23T   74%
+/dev/grid/node-x0-y13    90T   65T    25T   72%
+/dev/grid/node-x0-y14    94T   71T    23T   75%
+/dev/grid/node-x0-y15    88T   65T    23T   73%
+/dev/grid/node-x0-y16    86T   64T    22T   74%
+/dev/grid/node-x0-y17    94T   67T    27T   71%
+/dev/grid/node-x0-y18    93T   71T    22T   76%
+/dev/grid/node-x0-y19    86T   73T    13T   84%
+/dev/grid/node-x0-y20    89T   72T    17T   80%
+/dev/grid/node-x0-y21    91T   72T    19T   79%
+/dev/grid/node-x0-y22    89T   66T    23T   74%
+/dev/grid/node-x0-y23    85T   71T    14T   83%
+/dev/grid/node-x0-y24    91T   73T    18T   80%
+/dev/grid/node-x0-y25    89T   67T    22T   75%
+/dev/grid/node-x0-y26    89T   70T    19T   78%
+/dev/grid/node-x0-y27    87T   73T    14T   83%
+/dev/grid/node-x0-y28    93T   73T    20T   78%
+/dev/grid/node-x0-y29    90T   67T    23T   74%
+/dev/grid/node-x0-y30    89T   68T    21T   76%
+/dev/grid/node-x1-y0     91T   67T    24T   73%
+/dev/grid/node-x1-y1     92T   68T    24T   73%
+/dev/grid/node-x1-y2     92T   69T    23T   75%
+/dev/grid/node-x1-y3     88T   71T    17T   80%
+/dev/grid/node-x1-y4     86T   64T    22T   74%
+/dev/grid/node-x1-y5     87T   73T    14T   83%
+/dev/grid/node-x1-y6     89T   73T    16T   82%
+/dev/grid/node-x1-y7     93T   68T    25T   73%
+/dev/grid/node-x1-y8     94T   71T    23T   75%
+/dev/grid/node-x1-y9     88T   71T    17T   80%
+/dev/grid/node-x1-y10    89T   71T    18T   79%
+/dev/grid/node-x1-y11    86T   67T    19T   77%
+/dev/grid/node-x1-y12    93T   67T    26T   72%
+/dev/grid/node-x1-y13    90T   67T    23T   74%
+/dev/grid/node-x1-y14    88T   70T    18T   79%
+/dev/grid/node-x1-y15    87T   67T    20T   77%
+/dev/grid/node-x1-y16    92T   68T    24T   73%
+/dev/grid/node-x1-y17    87T   69T    18T   79%
+/dev/grid/node-x1-y18    87T   69T    18T   79%
+/dev/grid/node-x1-y19    90T   71T    19T   78%
+/dev/grid/node-x1-y20   509T  492T    17T   96%
+/dev/grid/node-x1-y21    90T   69T    21T   76%
+/dev/grid/node-x1-y22    94T   65T    29T   69%
+/dev/grid/node-x1-y23    92T   65T    27T   70%
+/dev/grid/node-x1-y24    92T   70T    22T   76%
+/dev/grid/node-x1-y25    91T   64T    27T   70%
+/dev/grid/node-x1-y26    87T   65T    22T   74%
+/dev/grid/node-x1-y27    94T   68T    26T   72%
+/dev/grid/node-x1-y28    87T   69T    18T   79%
+/dev/grid/node-x1-y29    90T   71T    19T   78%
+/dev/grid/node-x1-y30    94T   70T    24T   74%
+/dev/grid/node-x2-y0     86T   65T    21T   75%
+/dev/grid/node-x2-y1     85T   73T    12T   85%
+/dev/grid/node-x2-y2     94T   64T    30T   68%
+/dev/grid/node-x2-y3     86T   64T    22T   74%
+/dev/grid/node-x2-y4     86T   65T    21T   75%
+/dev/grid/node-x2-y5     87T   67T    20T   77%
+/dev/grid/node-x2-y6     92T   71T    21T   77%
+/dev/grid/node-x2-y7     90T   66T    24T   73%
+/dev/grid/node-x2-y8     92T   68T    24T   73%
+/dev/grid/node-x2-y9     90T   70T    20T   77%
+/dev/grid/node-x2-y10    86T   71T    15T   82%
+/dev/grid/node-x2-y11    88T   71T    17T   80%
+/dev/grid/node-x2-y12    89T   73T    16T   82%
+/dev/grid/node-x2-y13    93T   69T    24T   74%
+/dev/grid/node-x2-y14    86T   65T    21T   75%
+/dev/grid/node-x2-y15    89T   72T    17T   80%
+/dev/grid/node-x2-y16    91T   66T    25T   72%
+/dev/grid/node-x2-y17    86T   70T    16T   81%
+/dev/grid/node-x2-y18    93T   65T    28T   69%
+/dev/grid/node-x2-y19    88T   66T    22T   75%
+/dev/grid/node-x2-y20   506T  494T    12T   97%
+/dev/grid/node-x2-y21    91T   64T    27T   70%
+/dev/grid/node-x2-y22    92T   65T    27T   70%
+/dev/grid/node-x2-y23    90T   67T    23T   74%
+/dev/grid/node-x2-y24    93T   73T    20T   78%
+/dev/grid/node-x2-y25    92T   68T    24T   73%
+/dev/grid/node-x2-y26    94T   73T    21T   77%
+/dev/grid/node-x2-y27    85T   69T    16T   81%
+/dev/grid/node-x2-y28    88T   69T    19T   78%
+/dev/grid/node-x2-y29    85T   68T    17T   80%
+/dev/grid/node-x2-y30    86T   73T    13T   84%
+/dev/grid/node-x3-y0     85T   68T    17T   80%
+/dev/grid/node-x3-y1     88T   64T    24T   72%
+/dev/grid/node-x3-y2     86T   65T    21T   75%
+/dev/grid/node-x3-y3     89T   72T    17T   80%
+/dev/grid/node-x3-y4     86T   66T    20T   76%
+/dev/grid/node-x3-y5     94T   66T    28T   70%
+/dev/grid/node-x3-y6     91T   71T    20T   78%
+/dev/grid/node-x3-y7     88T   67T    21T   76%
+/dev/grid/node-x3-y8     90T   67T    23T   74%
+/dev/grid/node-x3-y9     92T   65T    27T   70%
+/dev/grid/node-x3-y10    89T   72T    17T   80%
+/dev/grid/node-x3-y11    92T   73T    19T   79%
+/dev/grid/node-x3-y12    91T   67T    24T   73%
+/dev/grid/node-x3-y13    90T   66T    24T   73%
+/dev/grid/node-x3-y14    86T   69T    17T   80%
+/dev/grid/node-x3-y15    90T   72T    18T   80%
+/dev/grid/node-x3-y16    92T   66T    26T   71%
+/dev/grid/node-x3-y17    90T   72T    18T   80%
+/dev/grid/node-x3-y18    90T   69T    21T   76%
+/dev/grid/node-x3-y19    90T   72T    18T   80%
+/dev/grid/node-x3-y20   508T  497T    11T   97%
+/dev/grid/node-x3-y21    91T   70T    21T   76%
+/dev/grid/node-x3-y22    87T   67T    20T   77%
+/dev/grid/node-x3-y23    86T   70T    16T   81%
+/dev/grid/node-x3-y24    90T   67T    23T   74%
+/dev/grid/node-x3-y25    90T   65T    25T   72%
+/dev/grid/node-x3-y26    87T   64T    23T   73%
+/dev/grid/node-x3-y27    85T   72T    13T   84%
+/dev/grid/node-x3-y28    88T    0T    88T    0%
+/dev/grid/node-x3-y29    90T   71T    19T   78%
+/dev/grid/node-x3-y30    87T   73T    14T   83%
+/dev/grid/node-x4-y0     86T   66T    20T   76%
+/dev/grid/node-x4-y1     94T   67T    27T   71%
+/dev/grid/node-x4-y2     89T   65T    24T   73%
+/dev/grid/node-x4-y3     89T   73T    16T   82%
+/dev/grid/node-x4-y4     92T   68T    24T   73%
+/dev/grid/node-x4-y5     94T   73T    21T   77%
+/dev/grid/node-x4-y6     94T   68T    26T   72%
+/dev/grid/node-x4-y7     90T   71T    19T   78%
+/dev/grid/node-x4-y8     86T   73T    13T   84%
+/dev/grid/node-x4-y9     88T   66T    22T   75%
+/dev/grid/node-x4-y10    90T   68T    22T   75%
+/dev/grid/node-x4-y11    87T   65T    22T   74%
+/dev/grid/node-x4-y12    91T   67T    24T   73%
+/dev/grid/node-x4-y13    93T   69T    24T   74%
+/dev/grid/node-x4-y14    90T   71T    19T   78%
+/dev/grid/node-x4-y15    85T   73T    12T   85%
+/dev/grid/node-x4-y16    85T   68T    17T   80%
+/dev/grid/node-x4-y17    89T   64T    25T   71%
+/dev/grid/node-x4-y18    91T   70T    21T   76%
+/dev/grid/node-x4-y19    87T   67T    20T   77%
+/dev/grid/node-x4-y20   501T  498T     3T   99%
+/dev/grid/node-x4-y21    88T   68T    20T   77%
+/dev/grid/node-x4-y22    88T   69T    19T   78%
+/dev/grid/node-x4-y23    91T   66T    25T   72%
+/dev/grid/node-x4-y24    93T   65T    28T   69%
+/dev/grid/node-x4-y25    90T   64T    26T   71%
+/dev/grid/node-x4-y26    86T   69T    17T   80%
+/dev/grid/node-x4-y27    88T   72T    16T   81%
+/dev/grid/node-x4-y28    92T   69T    23T   75%
+/dev/grid/node-x4-y29    91T   67T    24T   73%
+/dev/grid/node-x4-y30    86T   64T    22T   74%
+/dev/grid/node-x5-y0     92T   72T    20T   78%
+/dev/grid/node-x5-y1     92T   69T    23T   75%
+/dev/grid/node-x5-y2     94T   73T    21T   77%
+/dev/grid/node-x5-y3     87T   69T    18T   79%
+/dev/grid/node-x5-y4     90T   64T    26T   71%
+/dev/grid/node-x5-y5     85T   66T    19T   77%
+/dev/grid/node-x5-y6     90T   67T    23T   74%
+/dev/grid/node-x5-y7     87T   71T    16T   81%
+/dev/grid/node-x5-y8     92T   71T    21T   77%
+/dev/grid/node-x5-y9     86T   67T    19T   77%
+/dev/grid/node-x5-y10    93T   66T    27T   70%
+/dev/grid/node-x5-y11    92T   68T    24T   73%
+/dev/grid/node-x5-y12    90T   64T    26T   71%
+/dev/grid/node-x5-y13    88T   66T    22T   75%
+/dev/grid/node-x5-y14    85T   71T    14T   83%
+/dev/grid/node-x5-y15    92T   68T    24T   73%
+/dev/grid/node-x5-y16    94T   64T    30T   68%
+/dev/grid/node-x5-y17    90T   68T    22T   75%
+/dev/grid/node-x5-y18    90T   64T    26T   71%
+/dev/grid/node-x5-y19    88T   68T    20T   77%
+/dev/grid/node-x5-y20   501T  493T     8T   98%
+/dev/grid/node-x5-y21    91T   64T    27T   70%
+/dev/grid/node-x5-y22    94T   69T    25T   73%
+/dev/grid/node-x5-y23    91T   65T    26T   71%
+/dev/grid/node-x5-y24    87T   70T    17T   80%
+/dev/grid/node-x5-y25    94T   64T    30T   68%
+/dev/grid/node-x5-y26    92T   71T    21T   77%
+/dev/grid/node-x5-y27    89T   64T    25T   71%
+/dev/grid/node-x5-y28    90T   66T    24T   73%
+/dev/grid/node-x5-y29    94T   73T    21T   77%
+/dev/grid/node-x5-y30    85T   68T    17T   80%
+/dev/grid/node-x6-y0     87T   70T    17T   80%
+/dev/grid/node-x6-y1     86T   65T    21T   75%
+/dev/grid/node-x6-y2     86T   67T    19T   77%
+/dev/grid/node-x6-y3     90T   66T    24T   73%
+/dev/grid/node-x6-y4     90T   70T    20T   77%
+/dev/grid/node-x6-y5     85T   66T    19T   77%
+/dev/grid/node-x6-y6     87T   70T    17T   80%
+/dev/grid/node-x6-y7     90T   68T    22T   75%
+/dev/grid/node-x6-y8     88T   71T    17T   80%
+/dev/grid/node-x6-y9     93T   70T    23T   75%
+/dev/grid/node-x6-y10    91T   73T    18T   80%
+/dev/grid/node-x6-y11    94T   70T    24T   74%
+/dev/grid/node-x6-y12    85T   65T    20T   76%
+/dev/grid/node-x6-y13    87T   71T    16T   81%
+/dev/grid/node-x6-y14    91T   70T    21T   76%
+/dev/grid/node-x6-y15    90T   67T    23T   74%
+/dev/grid/node-x6-y16    87T   65T    22T   74%
+/dev/grid/node-x6-y17    86T   67T    19T   77%
+/dev/grid/node-x6-y18    87T   73T    14T   83%
+/dev/grid/node-x6-y19    91T   67T    24T   73%
+/dev/grid/node-x6-y20   504T  490T    14T   97%
+/dev/grid/node-x6-y21    85T   69T    16T   81%
+/dev/grid/node-x6-y22    94T   71T    23T   75%
+/dev/grid/node-x6-y23    89T   68T    21T   76%
+/dev/grid/node-x6-y24    92T   73T    19T   79%
+/dev/grid/node-x6-y25    94T   72T    22T   76%
+/dev/grid/node-x6-y26    91T   67T    24T   73%
+/dev/grid/node-x6-y27    94T   67T    27T   71%
+/dev/grid/node-x6-y28    85T   66T    19T   77%
+/dev/grid/node-x6-y29    90T   72T    18T   80%
+/dev/grid/node-x6-y30    86T   71T    15T   82%
+/dev/grid/node-x7-y0     91T   69T    22T   75%
+/dev/grid/node-x7-y1     87T   66T    21T   75%
+/dev/grid/node-x7-y2     89T   69T    20T   77%
+/dev/grid/node-x7-y3     89T   71T    18T   79%
+/dev/grid/node-x7-y4     94T   71T    23T   75%
+/dev/grid/node-x7-y5     92T   65T    27T   70%
+/dev/grid/node-x7-y6     85T   64T    21T   75%
+/dev/grid/node-x7-y7     90T   71T    19T   78%
+/dev/grid/node-x7-y8     92T   69T    23T   75%
+/dev/grid/node-x7-y9     85T   66T    19T   77%
+/dev/grid/node-x7-y10    88T   67T    21T   76%
+/dev/grid/node-x7-y11    87T   73T    14T   83%
+/dev/grid/node-x7-y12    92T   69T    23T   75%
+/dev/grid/node-x7-y13    90T   70T    20T   77%
+/dev/grid/node-x7-y14    85T   73T    12T   85%
+/dev/grid/node-x7-y15    90T   69T    21T   76%
+/dev/grid/node-x7-y16    87T   69T    18T   79%
+/dev/grid/node-x7-y17    93T   71T    22T   76%
+/dev/grid/node-x7-y18    91T   64T    27T   70%
+/dev/grid/node-x7-y19    90T   68T    22T   75%
+/dev/grid/node-x7-y20   505T  491T    14T   97%
+/dev/grid/node-x7-y21    87T   72T    15T   82%
+/dev/grid/node-x7-y22    86T   67T    19T   77%
+/dev/grid/node-x7-y23    85T   71T    14T   83%
+/dev/grid/node-x7-y24    86T   70T    16T   81%
+/dev/grid/node-x7-y25    90T   69T    21T   76%
+/dev/grid/node-x7-y26    89T   69T    20T   77%
+/dev/grid/node-x7-y27    87T   66T    21T   75%
+/dev/grid/node-x7-y28    85T   69T    16T   81%
+/dev/grid/node-x7-y29    85T   69T    16T   81%
+/dev/grid/node-x7-y30    88T   72T    16T   81%
+/dev/grid/node-x8-y0     92T   65T    27T   70%
+/dev/grid/node-x8-y1     90T   68T    22T   75%
+/dev/grid/node-x8-y2     89T   64T    25T   71%
+/dev/grid/node-x8-y3     87T   68T    19T   78%
+/dev/grid/node-x8-y4     92T   71T    21T   77%
+/dev/grid/node-x8-y5     87T   67T    20T   77%
+/dev/grid/node-x8-y6     91T   68T    23T   74%
+/dev/grid/node-x8-y7     86T   69T    17T   80%
+/dev/grid/node-x8-y8     90T   67T    23T   74%
+/dev/grid/node-x8-y9     94T   68T    26T   72%
+/dev/grid/node-x8-y10    93T   65T    28T   69%
+/dev/grid/node-x8-y11    85T   71T    14T   83%
+/dev/grid/node-x8-y12    94T   69T    25T   73%
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+/dev/grid/node-x8-y17    88T   70T    18T   79%
+/dev/grid/node-x8-y18    94T   73T    21T   77%
+/dev/grid/node-x8-y19    93T   64T    29T   68%
+/dev/grid/node-x8-y20   506T  496T    10T   98%
+/dev/grid/node-x8-y21    92T   73T    19T   79%
+/dev/grid/node-x8-y22    87T   66T    21T   75%
+/dev/grid/node-x8-y23    93T   73T    20T   78%
+/dev/grid/node-x8-y24    91T   69T    22T   75%
+/dev/grid/node-x8-y25    85T   68T    17T   80%
+/dev/grid/node-x8-y26    93T   65T    28T   69%
+/dev/grid/node-x8-y27    91T   64T    27T   70%
+/dev/grid/node-x8-y28    91T   73T    18T   80%
+/dev/grid/node-x8-y29    86T   71T    15T   82%
+/dev/grid/node-x8-y30    93T   70T    23T   75%
+/dev/grid/node-x9-y0     92T   69T    23T   75%
+/dev/grid/node-x9-y1     87T   71T    16T   81%
+/dev/grid/node-x9-y2     94T   64T    30T   68%
+/dev/grid/node-x9-y3     93T   64T    29T   68%
+/dev/grid/node-x9-y4     90T   73T    17T   81%
+/dev/grid/node-x9-y5     88T   65T    23T   73%
+/dev/grid/node-x9-y6     90T   69T    21T   76%
+/dev/grid/node-x9-y7     92T   69T    23T   75%
+/dev/grid/node-x9-y8     92T   64T    28T   69%
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+
diff --git a/test/test_2016.cpp b/test/test_2016.cpp
index cc3fcfd..dfbb462 100644
--- a/test/test_2016.cpp
+++ b/test/test_2016.cpp
@@ -186,7 +186,7 @@ TEST_CASE("Firewall Rules", "[2016]") {
 }
 
 
-TEST_CASE("", "[2016]") {
+TEST_CASE("Scrambled Letters and Hash", "[2016]") {
   line_view lv = load_file("../src/2016/day21/input");
   char cs[8] = {'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h'};
   char xs[8] = {'f', 'b', 'g', 'd', 'c', 'e', 'a', 'h'};
@@ -196,7 +196,7 @@ TEST_CASE("", "[2016]") {
 }
 
 
-TEST_CASE("", "[2016]") {
+TEST_CASE("Grid Computing", "[2016]") {
   line_view lv = load_file("../src/2016/day22/input");
   auto p = aoc2016::day22(lv);
   REQUIRE(0 == p.first);