this repo has no description
chore: small cleanups
+114
-20
+114
-20
2022/day12.livemd
+114
-20
2022/day12.livemd
···
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101
101
```
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102
warning: variable "graph" is unused (there is a variable with the same name in the context, use the pin operator (^) to match on it or prefix this variable with underscore if it is not meant to be used)
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2022/day12.livemd#cell:7urrvoyk6ltuxa4kdqc63nncfh37x2fn:30
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+
2022/day12.livemd#cell:6nz6sdhe57lxfvshc57dctj7qaalwwz3:42
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```
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···
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<!-- livebook:{"output":true} -->
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```
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-
[32256290, 409066827, 186924390, 1502865800, 887663648, 2543466388, 697356458, 1070575781,
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-
1659702078, 4000784021, 1947564743, 2361038489, 3904452243, 3615669650, 270460033, 1281654811,
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3153535741, 2393890474, 3946102901, 2210758189, 2982223724, 2654353783, 2656280720, 3935389969,
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-
2818948768, 4279780723, 3595206681, 3496428192, 2269119594, 2583881244, 3997991000, 520325395,
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-
457672928, 1453390554, 3289433936, 2574402082, 1560492086, 3242480874, 389839366, 4176230802,
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-
1147783117, 2469841095, 2034019869, 438932546, 1799582666, 1100008137, 467060197, 162439868,
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3928107970, 800548913, ...]
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+
[
211
+
{59, 38},
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+
{38, 5},
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+
{76, 17},
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+
{66, 36},
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+
{54, 26},
216
+
{10, 18},
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+
{3, 21},
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+
{42, 40},
219
+
{73, 32},
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+
{43, 36},
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+
{2, 9},
222
+
{80, 31},
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+
{20, 12},
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+
{63, 11},
225
+
{5, 15},
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+
{76, 4},
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+
{136, 4},
228
+
{3, 9},
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+
{90, 11},
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+
{85, 39},
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+
{24, 29},
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+
{91, 28},
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+
{55, 27},
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+
{108, 10},
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+
{84, 4},
236
+
{9, 9},
237
+
{161, 38},
238
+
{3, 33},
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+
{68, 22},
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+
{143, 3},
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+
{49, 8},
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+
{70, 26},
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+
{39, 25},
244
+
{18, 13},
245
+
{88, 0},
246
+
{32, 21},
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+
{96, 3},
248
+
{84, 40},
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+
{53, 1},
250
+
{88, 30},
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+
{120, 10},
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+
{36, 4},
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+
{115, 13},
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+
{112, 3},
255
+
{42, 0},
256
+
{4, 17},
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+
{35, 12},
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+
{114, 19},
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+
{20, ...},
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+
{...},
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+
...
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+
]
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```
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```elixir
···
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if has_negative_cycle?(distances, weights) do
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nil
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else
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Map.new(distances, fn {k, v} -> {Map.fetch!(vertices, k), v} end)
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Map.new(distances, fn {k, v} -> {Map.fetch!(vs, k), v} end)
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end
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end
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···
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<!-- livebook:{"output":true} -->
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```
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-
{:module, BellmanFord, <<70, 79, 82, 49, 0, 0, 19, ...>>, {:has_negative_cycle?, 2}}
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+
{:module, BellmanFord, <<70, 79, 82, 49, 0, 0, 18, ...>>, {:has_negative_cycle?, 2}}
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```
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```elixir
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min_paths =
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+
paths =
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tgraph
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# |> Graph.bellman_ford(stop)
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|> BellmanFord.call(stop)
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|> Map.take(lowest)
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-
|> Map.values()
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```
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301
345
<!-- livebook:{"output":true} -->
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346
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```
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-
[:infinity, :infinity, :infinity, 454, :infinity, :infinity, :infinity, :infinity, :infinity,
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-
:infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity,
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-
:infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity,
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-
:infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity,
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-
:infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity, :infinity,
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-
:infinity, :infinity, :infinity, :infinity, :infinity, ...]
348
+
%{
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+
{76, 13} => :infinity,
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+
{38, 2} => :infinity,
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+
{1, 26} => 430,
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+
{140, 11} => 100,
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+
{32, 15} => 388,
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+
{89, 14} => 328,
355
+
{35, 30} => 392,
356
+
{156, 9} => :infinity,
357
+
{4, 5} => 454,
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+
{74, 12} => :infinity,
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+
{11, 39} => 425,
360
+
{131, 5} => 323,
361
+
{22, 38} => 413,
362
+
{29, 25} => 403,
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+
{86, 10} => :infinity,
364
+
{83, 36} => 366,
365
+
{29, 26} => 402,
366
+
{47, 27} => :infinity,
367
+
{9, 34} => 426,
368
+
{137, 16} => 12,
369
+
{90, 0} => :infinity,
370
+
{103, 39} => 289,
371
+
{126, 13} => :infinity,
372
+
{47, 38} => :infinity,
373
+
{128, 35} => 268,
374
+
{20, 3} => 412,
375
+
{145, 20} => 24,
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+
{143, 39} => 247,
377
+
{79, 17} => 335,
378
+
{75, 0} => :infinity,
379
+
{150, 18} => 167,
380
+
{147, 10} => 178,
381
+
{148, 26} => 75,
382
+
{76, 2} => :infinity,
383
+
{138, 9} => 104,
384
+
{58, 33} => 372,
385
+
{150, 5} => 296,
386
+
{54, 31} => 374,
387
+
{22, 37} => 412,
388
+
{75, 36} => :infinity,
389
+
{91, 35} => :infinity,
390
+
{143, 4} => :infinity,
391
+
{121, 27} => 283,
392
+
{91, 38} => :infinity,
393
+
{159, 26} => 268,
394
+
{131, 24} => 124,
395
+
{58, 10} => 367,
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+
{111, 14} => :infinity,
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+
{75, ...} => 345,
398
+
{...} => 411,
399
+
...
400
+
}
310
401
```
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```elixir
313
-
Enum.min(min_paths)
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+
paths
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+
|> Map.take(lowest)
406
+
|> Map.values()
407
+
|> Enum.min()
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408
```
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<!-- livebook:{"output":true} -->