day 5

py-ver/05.py

@@ -0,0 +1,54 @@
+import re
+
+with open("05.txt") as f:
+  data = f.read()
+
+def solve(data, part2=False):
+  crates, insns = data.split("\n\n")
+
+  crates = crates.split("\n")
+  insns = insns.split("\n")
+
+  stacks = dict()
+  crateDefs, stackNames = crates[:-1], crates[-1]
+
+  # Parse
+  crateCoords: dict[int, list[str]] = dict()
+  for i, line in enumerate(crateDefs):
+    for j, c in enumerate(line):
+      if c == "[":
+        j2 = j // 4
+        bucket = j2
+        if bucket not in crateCoords: crateCoords[bucket] = []
+        crateCoords[bucket].insert(0, line[j + 1])
+
+  pat = re.compile(r"move (\d+) from (\d+) to (\d+)")
+  for line in insns:
+    m = pat.match(line)
+    if m is None: continue
+    c, f, t = int(m.group(1)), int(m.group(2)) - 1, int(m.group(3)) - 1
+
+    moved = crateCoords[f][-c:]
+    crateCoords[f] = crateCoords[f][:-c]
+    crateCoords[t] += (moved if part2 else moved[::-1])
+
+  for i in sorted(crateCoords.keys()):
+    stk = crateCoords[i]
+    print(stk[-1], end="")
+  print()
+
+ex_data = """    [D]    
+[N] [C]    
+[Z] [M] [P]
+ 1   2   3 
+
+move 1 from 2 to 1
+move 3 from 1 to 3
+move 2 from 2 to 1
+move 1 from 1 to 2"""
+
+solve(ex_data)
+solve(data)
+
+solve(ex_data, part2=True)
+solve(data, part2=True)

py-ver/05.txt

@@ -0,0 +1,512 @@
+[W] [V]     [P]                    
+[B] [T]     [C] [B]     [G]        
+[G] [S]     [V] [H] [N] [T]        
+[Z] [B] [W] [J] [D] [M] [S]        
+[R] [C] [N] [N] [F] [W] [C]     [W]
+[D] [F] [S] [M] [L] [T] [L] [Z] [Z]
+[C] [W] [B] [G] [S] [V] [F] [D] [N]
+[V] [G] [C] [Q] [T] [J] [P] [B] [M]
+ 1   2   3   4   5   6   7   8   9 
+
+move 2 from 8 to 4
+move 2 from 7 to 3
+move 2 from 9 to 2
+move 4 from 1 to 9
+move 1 from 7 to 8
+move 1 from 9 to 6
+move 6 from 6 to 1
+move 6 from 1 to 6
+move 2 from 7 to 1
+move 9 from 4 to 1
+move 6 from 2 to 7
+move 5 from 9 to 7
+move 7 from 3 to 7
+move 19 from 7 to 9
+move 1 from 7 to 1
+move 3 from 6 to 8
+move 4 from 5 to 6
+move 1 from 4 to 1
+move 2 from 5 to 2
+move 8 from 9 to 7
+move 1 from 5 to 1
+move 3 from 9 to 4
+move 1 from 4 to 9
+move 2 from 4 to 7
+move 1 from 7 to 6
+move 3 from 8 to 9
+move 17 from 1 to 7
+move 21 from 7 to 3
+move 4 from 6 to 2
+move 1 from 7 to 2
+move 8 from 9 to 2
+move 2 from 8 to 3
+move 1 from 1 to 7
+move 2 from 7 to 9
+move 1 from 6 to 1
+move 1 from 7 to 4
+move 1 from 1 to 2
+move 4 from 6 to 1
+move 1 from 9 to 2
+move 1 from 7 to 9
+move 1 from 4 to 1
+move 7 from 3 to 7
+move 6 from 2 to 8
+move 3 from 3 to 4
+move 1 from 8 to 4
+move 12 from 2 to 8
+move 2 from 9 to 2
+move 12 from 3 to 2
+move 12 from 8 to 6
+move 3 from 4 to 2
+move 19 from 2 to 8
+move 4 from 1 to 9
+move 1 from 3 to 8
+move 1 from 4 to 6
+move 1 from 2 to 4
+move 1 from 6 to 3
+move 8 from 9 to 6
+move 1 from 4 to 9
+move 1 from 3 to 1
+move 1 from 9 to 5
+move 11 from 6 to 3
+move 5 from 8 to 6
+move 14 from 6 to 9
+move 2 from 1 to 4
+move 3 from 8 to 1
+move 8 from 8 to 4
+move 3 from 3 to 4
+move 8 from 3 to 1
+move 9 from 8 to 2
+move 12 from 4 to 2
+move 12 from 9 to 3
+move 9 from 3 to 4
+move 1 from 5 to 3
+move 7 from 7 to 1
+move 2 from 9 to 1
+move 2 from 4 to 6
+move 16 from 2 to 6
+move 1 from 2 to 8
+move 10 from 1 to 4
+move 1 from 8 to 2
+move 4 from 1 to 6
+move 15 from 4 to 8
+move 1 from 4 to 2
+move 2 from 6 to 8
+move 5 from 2 to 8
+move 21 from 8 to 3
+move 6 from 1 to 3
+move 15 from 6 to 1
+move 1 from 2 to 1
+move 1 from 8 to 9
+move 15 from 1 to 3
+move 7 from 3 to 8
+move 1 from 7 to 9
+move 2 from 9 to 8
+move 2 from 3 to 7
+move 4 from 6 to 1
+move 2 from 7 to 8
+move 1 from 6 to 2
+move 4 from 8 to 3
+move 2 from 4 to 8
+move 1 from 2 to 1
+move 4 from 1 to 5
+move 3 from 5 to 8
+move 1 from 5 to 1
+move 12 from 8 to 3
+move 3 from 1 to 2
+move 17 from 3 to 5
+move 2 from 5 to 3
+move 15 from 5 to 1
+move 1 from 1 to 4
+move 17 from 3 to 2
+move 5 from 2 to 8
+move 17 from 3 to 6
+move 6 from 1 to 3
+move 5 from 1 to 6
+move 4 from 8 to 9
+move 10 from 3 to 8
+move 7 from 2 to 9
+move 2 from 6 to 3
+move 2 from 2 to 8
+move 1 from 1 to 4
+move 17 from 6 to 9
+move 13 from 8 to 2
+move 2 from 4 to 1
+move 1 from 6 to 7
+move 2 from 2 to 4
+move 8 from 2 to 7
+move 1 from 6 to 1
+move 4 from 7 to 9
+move 1 from 4 to 7
+move 1 from 4 to 6
+move 1 from 1 to 7
+move 5 from 2 to 4
+move 2 from 3 to 8
+move 6 from 7 to 1
+move 1 from 7 to 4
+move 11 from 9 to 7
+move 1 from 8 to 4
+move 8 from 1 to 2
+move 1 from 1 to 4
+move 1 from 1 to 9
+move 1 from 6 to 1
+move 1 from 8 to 4
+move 6 from 2 to 3
+move 1 from 1 to 3
+move 1 from 6 to 7
+move 1 from 4 to 6
+move 6 from 2 to 5
+move 7 from 3 to 4
+move 2 from 7 to 6
+move 2 from 7 to 3
+move 8 from 7 to 5
+move 3 from 6 to 7
+move 1 from 5 to 7
+move 1 from 7 to 5
+move 13 from 9 to 3
+move 1 from 3 to 8
+move 8 from 4 to 3
+move 3 from 5 to 1
+move 7 from 4 to 1
+move 5 from 1 to 4
+move 3 from 1 to 4
+move 2 from 1 to 8
+move 2 from 7 to 5
+move 2 from 8 to 9
+move 1 from 7 to 6
+move 1 from 8 to 7
+move 4 from 5 to 1
+move 1 from 7 to 2
+move 2 from 1 to 8
+move 1 from 2 to 1
+move 5 from 9 to 7
+move 3 from 9 to 4
+move 8 from 4 to 8
+move 6 from 8 to 5
+move 11 from 5 to 1
+move 3 from 4 to 2
+move 9 from 3 to 7
+move 6 from 7 to 2
+move 13 from 3 to 2
+move 3 from 8 to 1
+move 2 from 2 to 8
+move 1 from 6 to 7
+move 3 from 8 to 4
+move 9 from 1 to 5
+move 5 from 5 to 8
+move 2 from 8 to 4
+move 3 from 9 to 4
+move 2 from 8 to 2
+move 8 from 1 to 5
+move 8 from 7 to 9
+move 1 from 8 to 3
+move 15 from 5 to 9
+move 6 from 4 to 1
+move 1 from 7 to 2
+move 4 from 2 to 1
+move 1 from 3 to 4
+move 5 from 1 to 7
+move 3 from 7 to 3
+move 14 from 9 to 8
+move 1 from 4 to 8
+move 1 from 7 to 6
+move 2 from 4 to 5
+move 4 from 1 to 5
+move 1 from 6 to 5
+move 4 from 9 to 3
+move 5 from 3 to 7
+move 4 from 5 to 9
+move 1 from 3 to 7
+move 1 from 3 to 2
+move 4 from 5 to 2
+move 4 from 7 to 5
+move 4 from 2 to 1
+move 1 from 5 to 4
+move 7 from 9 to 7
+move 1 from 4 to 2
+move 1 from 5 to 8
+move 21 from 2 to 4
+move 1 from 9 to 8
+move 1 from 9 to 4
+move 3 from 4 to 1
+move 7 from 1 to 6
+move 1 from 5 to 1
+move 18 from 4 to 7
+move 1 from 5 to 8
+move 27 from 7 to 8
+move 1 from 7 to 3
+move 1 from 3 to 7
+move 1 from 7 to 2
+move 1 from 2 to 1
+move 42 from 8 to 9
+move 1 from 8 to 7
+move 1 from 8 to 2
+move 1 from 4 to 6
+move 1 from 2 to 9
+move 2 from 1 to 2
+move 1 from 7 to 3
+move 7 from 6 to 4
+move 4 from 9 to 6
+move 1 from 3 to 2
+move 1 from 2 to 7
+move 2 from 2 to 5
+move 1 from 8 to 4
+move 1 from 9 to 3
+move 5 from 4 to 7
+move 1 from 5 to 6
+move 1 from 5 to 9
+move 1 from 6 to 3
+move 1 from 7 to 5
+move 2 from 3 to 2
+move 22 from 9 to 7
+move 2 from 2 to 3
+move 18 from 7 to 9
+move 1 from 4 to 9
+move 1 from 1 to 4
+move 4 from 7 to 3
+move 4 from 3 to 2
+move 3 from 4 to 5
+move 1 from 2 to 4
+move 5 from 6 to 9
+move 1 from 5 to 3
+move 1 from 4 to 7
+move 2 from 5 to 1
+move 3 from 2 to 4
+move 1 from 5 to 6
+move 2 from 7 to 9
+move 1 from 6 to 8
+move 2 from 3 to 2
+move 2 from 4 to 7
+move 1 from 8 to 7
+move 1 from 4 to 6
+move 35 from 9 to 7
+move 13 from 7 to 3
+move 1 from 2 to 7
+move 1 from 2 to 5
+move 1 from 5 to 8
+move 1 from 8 to 5
+move 8 from 7 to 3
+move 1 from 6 to 4
+move 6 from 3 to 9
+move 1 from 1 to 9
+move 1 from 4 to 1
+move 14 from 9 to 8
+move 1 from 5 to 7
+move 16 from 3 to 2
+move 2 from 1 to 2
+move 1 from 9 to 2
+move 1 from 8 to 1
+move 1 from 1 to 3
+move 7 from 2 to 9
+move 6 from 9 to 8
+move 1 from 3 to 4
+move 3 from 7 to 6
+move 2 from 2 to 1
+move 1 from 4 to 7
+move 2 from 2 to 5
+move 1 from 9 to 6
+move 2 from 2 to 5
+move 2 from 6 to 2
+move 4 from 5 to 4
+move 5 from 2 to 6
+move 1 from 1 to 7
+move 1 from 1 to 2
+move 13 from 8 to 1
+move 2 from 8 to 4
+move 19 from 7 to 4
+move 3 from 1 to 6
+move 11 from 4 to 3
+move 2 from 7 to 9
+move 4 from 2 to 5
+move 2 from 9 to 5
+move 1 from 7 to 4
+move 2 from 5 to 7
+move 4 from 3 to 4
+move 3 from 4 to 1
+move 3 from 5 to 1
+move 9 from 6 to 4
+move 1 from 7 to 9
+move 1 from 7 to 5
+move 10 from 1 to 4
+move 1 from 9 to 6
+move 1 from 6 to 8
+move 32 from 4 to 5
+move 7 from 5 to 4
+move 27 from 5 to 9
+move 5 from 3 to 2
+move 3 from 2 to 8
+move 1 from 6 to 2
+move 8 from 4 to 9
+move 1 from 2 to 9
+move 8 from 8 to 6
+move 2 from 4 to 3
+move 1 from 2 to 3
+move 15 from 9 to 8
+move 4 from 1 to 4
+move 3 from 4 to 8
+move 6 from 9 to 7
+move 1 from 4 to 9
+move 8 from 8 to 2
+move 2 from 1 to 9
+move 2 from 7 to 9
+move 10 from 8 to 3
+move 6 from 2 to 6
+move 2 from 3 to 2
+move 6 from 6 to 3
+move 1 from 7 to 5
+move 8 from 3 to 2
+move 4 from 3 to 2
+move 1 from 3 to 5
+move 6 from 6 to 1
+move 4 from 3 to 7
+move 2 from 5 to 8
+move 3 from 7 to 5
+move 6 from 1 to 7
+move 1 from 3 to 4
+move 1 from 3 to 9
+move 10 from 7 to 4
+move 8 from 2 to 8
+move 11 from 9 to 5
+move 11 from 4 to 1
+move 5 from 2 to 6
+move 3 from 2 to 7
+move 11 from 1 to 6
+move 1 from 5 to 6
+move 8 from 5 to 4
+move 19 from 6 to 7
+move 3 from 7 to 9
+move 3 from 5 to 4
+move 1 from 2 to 5
+move 3 from 5 to 7
+move 8 from 9 to 6
+move 2 from 4 to 1
+move 1 from 1 to 9
+move 2 from 9 to 7
+move 6 from 6 to 2
+move 2 from 4 to 6
+move 4 from 8 to 6
+move 1 from 8 to 1
+move 7 from 6 to 7
+move 1 from 9 to 4
+move 5 from 8 to 4
+move 3 from 2 to 6
+move 4 from 6 to 4
+move 2 from 9 to 6
+move 3 from 2 to 9
+move 16 from 4 to 8
+move 1 from 6 to 8
+move 2 from 9 to 5
+move 1 from 9 to 7
+move 2 from 5 to 2
+move 1 from 4 to 6
+move 2 from 2 to 5
+move 1 from 9 to 6
+move 3 from 7 to 3
+move 7 from 7 to 8
+move 2 from 7 to 1
+move 3 from 8 to 5
+move 3 from 6 to 2
+move 4 from 7 to 4
+move 1 from 5 to 1
+move 1 from 5 to 7
+move 3 from 3 to 4
+move 5 from 1 to 4
+move 16 from 7 to 2
+move 5 from 4 to 7
+move 19 from 8 to 1
+move 11 from 2 to 9
+move 11 from 9 to 6
+move 2 from 1 to 6
+move 2 from 4 to 1
+move 5 from 4 to 6
+move 1 from 5 to 9
+move 1 from 9 to 6
+move 2 from 2 to 6
+move 1 from 5 to 4
+move 8 from 6 to 5
+move 16 from 1 to 6
+move 1 from 4 to 9
+move 3 from 2 to 9
+move 2 from 2 to 5
+move 2 from 5 to 8
+move 4 from 8 to 4
+move 4 from 9 to 7
+move 2 from 1 to 3
+move 5 from 6 to 4
+move 21 from 6 to 2
+move 9 from 7 to 3
+move 1 from 1 to 2
+move 1 from 5 to 3
+move 23 from 2 to 7
+move 1 from 7 to 5
+move 3 from 6 to 1
+move 9 from 4 to 5
+move 11 from 7 to 1
+move 2 from 3 to 4
+move 1 from 3 to 7
+move 1 from 4 to 1
+move 10 from 1 to 6
+move 5 from 7 to 1
+move 3 from 1 to 4
+move 7 from 1 to 7
+move 4 from 3 to 8
+move 4 from 7 to 4
+move 5 from 7 to 3
+move 2 from 4 to 9
+move 1 from 8 to 1
+move 4 from 4 to 1
+move 1 from 6 to 1
+move 1 from 6 to 5
+move 16 from 5 to 1
+move 2 from 5 to 7
+move 1 from 5 to 6
+move 2 from 8 to 2
+move 1 from 7 to 9
+move 3 from 9 to 5
+move 2 from 5 to 4
+move 6 from 7 to 1
+move 3 from 4 to 7
+move 1 from 8 to 6
+move 5 from 1 to 4
+move 1 from 6 to 1
+move 19 from 1 to 5
+move 1 from 7 to 6
+move 9 from 3 to 1
+move 6 from 6 to 5
+move 4 from 6 to 9
+move 3 from 9 to 4
+move 13 from 1 to 4
+move 1 from 3 to 1
+move 2 from 5 to 1
+move 1 from 2 to 3
+move 1 from 3 to 9
+move 4 from 5 to 4
+move 1 from 2 to 3
+move 1 from 3 to 5
+move 1 from 9 to 1
+move 1 from 9 to 5
+move 19 from 4 to 7
+move 4 from 1 to 6
+move 5 from 4 to 3
+move 3 from 6 to 1
+move 1 from 6 to 8
+move 2 from 1 to 6
+move 2 from 1 to 7
+move 2 from 6 to 3
+move 2 from 3 to 1
+move 8 from 7 to 6
+move 5 from 3 to 9
+move 2 from 4 to 9
+move 2 from 6 to 8
+move 10 from 7 to 2
+move 7 from 2 to 9
+move 1 from 8 to 9
+move 1 from 1 to 2
+move 2 from 9 to 3
+move 2 from 8 to 7
+move 1 from 1 to 6
+move 1 from 2 to 8
+move 2 from 2 to 5
+move 4 from 5 to 7
+move 5 from 6 to 1
+move 1 from 3 to 4