day20

3 files changed, 5058 insertions, 0 deletions

diff --git a/2022/day20.py b/2022/day20.py
new file mode 100755
index 0000000..2680e76
--- /dev/null
+++ b/2022/day20.py
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+
+# import numpy as np
+from functools import reduce
+from re import findall
+from copy import deepcopy
+import sys
+
+# filename = "in/day20.ref"
+filename = "in/day20.pzl"
+data = open(filename).read()
+lines = [line for line in data.rstrip('\n').split('\n')]
+
+A = list()
+for oi,line in enumerate(lines):
+    A.append( (oi, int(line.strip())) )
+# print(A)
+
+def solve(part, A):
+    L = len(A)
+    key = 811589153
+    if part == 2:
+        for ci, (oi,mov) in enumerate(A):
+            A[ci] = oi, key*mov
+
+    for _ in range(1 if part == 1 else 10):
+        for ois in range(L):
+            for ci,(oi,mov) in enumerate(A):
+                if ois == oi:
+                    break
+            # print('moving index:', ci, 'for:', mov)
+            v = A.pop(ci)
+            ni = (ci + mov) % (L-1)
+            A.insert(ni, v)
+            # print(list(map(lambda x: x[1], A)))
+        # print(list(map(lambda x: x[1], A)))
+
+    iz = None
+    for ci,(oi,mov) in enumerate(A):
+        if mov == 0:
+            iz = ci
+
+    res = 0
+    res += A[(iz+1000) % L][1]
+    res += A[(iz+2000) % L][1]
+    res += A[(iz+3000) % L][1]
+    return res
+
+print('res1:', solve(1, A.copy()))
+print('res2:', solve(2, A.copy()))
+
diff --git a/2022/in/day20.pzl b/2022/in/day20.pzl
new file mode 100644
index 0000000..5f4bad1
--- /dev/null
+++ b/2022/in/day20.pzl
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diff --git a/2022/in/day20.ref b/2022/in/day20.ref
new file mode 100644
index 0000000..52c68ff
--- /dev/null
+++ b/2022/in/day20.ref
@@ -0,0 +1,7 @@
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