Add day 5 solutions

python/2023/README.org

@@ -44,3 +44,24 @@ where =avg-time= is [[https://stackoverflow.com/a/54920339][this bit of ~awk~]]
 *** Answers
 19135
 5704953
+
+** Day 5
+*** Answers
+324724204
+104070862
+
+#+begin_src shell
+  -> date -Iseconds; cat src/andy_aoc_2023/BIG_INPUTS | xargs -P 0 -I '%' python src/andy_aoc_2023/day5.py src/andy_aoc_2023/BIG_MAPS %; date -Iseconds
+  2023-12-05T12:55:55-05:00
+  856496588
+  547766656
+  990928320
+  104899384
+  516299014
+  104070862  <-- This is the min aka the answer
+  324724204
+  344671053
+  114257961
+  146071405
+  2023-12-05T14:46:41-05:00
+#+end_src

python/2023/src/andy_aoc_2023/BIG_INPUTS

@@ -0,0 +1,10 @@
+4106085912 135215567
+529248892 159537194
+1281459911 114322341
+1857095529 814584370
+2999858074 50388481
+3362084117 37744902
+3471634344 240133599
+3737494864 346615684
+1585884643 142273098
+917169654 286257440

python/2023/src/andy_aoc_2023/day5.py

@@ -6,16 +6,15 @@ import sys
 
 def parse_raw_input(lines):
     chunks = []
-    input_map = {}
+    input_map = []
     for line in lines:
         if (matches := re.match(r"(\d+) (\d+) (\d+)", line)):
             dest, source, range_length = map(int, matches.groups())
-            input_map = input_map | dict(zip(range(source, source + range_length),
-                                             range(dest, dest + range_length)))
+            input_map.append((dest, source, range_length))
         else:
             if input_map:
                 chunks.append(input_map)
-                input_map = {}
+                input_map = []
 
     # Need to get the last lines processed
     if input_map:
@@ -23,19 +22,80 @@ def parse_raw_input(lines):
 
     return chunks
 
-input_file = sys.argv[1]
 
-with open(input_file) as infile:
-    seeds = infile.readline().strip().split(": ")[1].split(" ")
-    input_maps = parse_raw_input(infile.readlines())
-
-
-states = []
-for seed in map(int, seeds):
+def part1(seeds, input_maps, states):
+    for seed in seeds:
         state = seed
         for input_map in input_maps:
-        new_state = input_map.get(state, state)
+            new_state = state
+            for partition in input_map:
+                dest, source, range_length = partition
+                if source <= state < source + range_length:
+                    offset = dest - source
+                    new_state = state + offset
+                    break
             state = new_state
         states.append(state)
 
-print(f"{min(states)}")
+    return min(states)
+    # print(f"{min(states)}")
+
+
+# input_file = sys.argv[1]
+
+# with open(input_file) as infile:
+#     seeds = infile.readline().strip().split(": ")[1].split(" ")
+#     input_maps = parse_raw_input(infile.readlines())
+
+# part1(map(int, seeds), input_maps, [])
+
+def partition(input, size):
+    for i in range(0, len(input), size):
+        yield input[i: i + size]
+
+
+
+# states = []
+# for start, size in partition(list(int(s) for s in seeds), 2):
+#     print(start)
+#     seed_range = range(start, start + size)
+
+#     part1(seed_range, input_maps, states)
+#     # part1((start, start + size), input_maps, states)
+#     print(f"{states} : {min(states)}")
+
+# print(f"{min(states)}")
+
+# for start, size in partition(list(int(s) for s in seeds), 2):
+#     print(start, size)
+
+import json
+# print(json.dumps(input_maps))
+with open(sys.argv[1]) as infile:
+    input_maps = json.load(infile)
+start, length = map(int, sys.argv[2].split(" "))
+# length = sys.argv[3]
+
+# print(f"Would run with maps {len(input_maps)} {start} {length}")
+seed_range = range(start, start + length)
+print(part1(seed_range, input_maps, []))
+
+#print(input_maps)
+
+
+
+
+# for seed in map(int, seeds):
+#     state = seed
+#     for input_map in input_maps:
+#         new_state = state
+#         for partition in input_map:
+#             dest, source, range_length = partition
+#             if source <= state < source + range_length:
+#                 offset = dest - source
+#                 new_state = state + offset
+#                 break
+#         state = new_state
+#     states.append(state)
+
+# print(f"{min(states)}")