day22

3 files changed, 480 insertions, 0 deletions

diff --git a/2022/day22.py b/2022/day22.py
new file mode 100755
index 0000000..1aab294
--- /dev/null
+++ b/2022/day22.py
@@ -0,0 +1,264 @@
+#!/usr/bin/env python3
+
+# import numpy as np
+from functools import reduce
+from re import findall
+from copy import deepcopy
+import sys
+
+# filename = "in/day22.ref"
+filename = "in/day22.pzl"
+data = open(filename).read()
+lines = [line for line in data.rstrip('\n').split('\n')]
+# print(lines)
+
+res2 = 0
+
+y_len = len(lines) - 2 + 2
+x_len = max([len(lines[i]) for i in range(y_len-2)]) + 2
+# print(y_len)
+# print(x_len)
+
+A = [ [' ' for x in range(x_len)] for y in range(y_len)]
+for y,line in enumerate(lines[:-2]):
+    for x, val in enumerate(line):
+        A[y+1][x+1] = val
+
+# for line in A:
+#     for char in line:
+#         print(char, end='')
+#     print()
+
+ops_s = lines[-1]
+i = 0
+ops = list()
+
+while i < len(ops_s):
+    find_r = ops_s.find('R',i)
+    find_l = ops_s.find('L',i)
+
+    if find_r == -1 and find_l == -1:
+        ops.append(int(ops_s[i:]))
+        break
+    elif find_r == -1:
+        lr = 'L'
+        nxt = find_l
+    elif find_l == -1:
+        lr = 'R'
+        nxt = find_r
+    elif find_l < find_r:
+        lr = 'L'
+        nxt = find_l
+    else:
+        lr = 'R'
+        nxt = find_r
+
+    ops.append(int(ops_s[i:nxt]))
+    ops.append(lr)
+    i = nxt+1
+# print(ops)
+
+
+def wrap(A, z, d):
+    new_z = z
+    new_d = -d
+    while A[int(new_z.imag)][int(new_z.real)] != ' ':
+        new_z += new_d
+    new_z += d
+
+    if A[int(new_z.imag)][int(new_z.real)] == '#':
+        # print('unsuccessful wrap from', z)
+        return z, d
+    else:
+        # print('wrapping to', new_z)
+        return new_z, d
+
+def solve(part):
+    d = 1
+    z = 1 + 1j
+    while A[int(z.imag)][int(z.real)] != '.':
+        z += 1
+    # print(z)
+
+    for op in ops:
+        # print(op)
+        if type(op) == int:
+            for i in range(op):
+                new_z = z + d
+                val = A[int(new_z.imag)][int(new_z.real)]
+                if val == '.':
+                    z = new_z
+                elif val == '#':
+                    # print('hit #')
+                    break
+                else:
+                    if part == 1:
+                        z, d = wrap(A, z, d)
+                    elif part == 2:
+                        z, d = wrap2(A, z, d)
+                # print('z', z)
+
+        elif type(op) == str:
+            if op == 'R':
+                d *= 1j
+            elif op == 'L':
+                d *= -1j
+        # print(op, z, d, new_z)
+        # print()
+
+    res = 0
+    res += 1000*int(z.imag)
+    res += 4*int(z.real)
+    if d == 1:
+        res += 0
+    elif d == 1j:
+        res += 1
+    elif d == -1:
+        res += 2
+    elif d == -1j:
+        res += 3
+    return res
+
+
+# len
+# L = 4
+
+# # tiles
+# T = dict()
+# T['a'] = 9 + 1j
+# T['b'] = 1 + 5j
+# T['c'] = 5 + 5j
+# T['d'] = 9 + 5j
+# T['e'] = 9 + 9j
+# T['f'] = 13 + 9j
+
+# # edges
+# E = dict()
+# E[('a',1+0j)] = ('f',-1+0j)
+# E[('a',-1+0j)] = ('c',1j)
+# E[('a',-1j)] = ('b',1j)
+
+# E[('b', 1j)] = ('e',-1j)
+# E[('b',-1+0j)] = ('f',-1j)
+# E[('b',-1j)] = ('a',1j)
+
+# E[('c', 1j)] = ('e',1+0j)
+# E[('c',-1j)] = ('a',1+0j)
+
+# E[('d',1+0j)] = ('f',1j)
+
+# E[('e', 1j)] = ('b',-1j)
+# E[('e',-1+0j)] = ('c',-1j)
+
+# E[('f', 1+0j)] = ('a',-1)
+# E[('f', 1j)] = ('b',1+0j)
+# E[('f',-1j)] = ('d',-1)
+
+
+
+# len
+L = 50
+
+# tiles
+T = dict()
+T['a'] = 51 + 1j
+T['b'] = 101 + 1j
+T['c'] = 51 + 51j
+T['d'] = 1 + 101j
+T['e'] = 51 + 101j
+T['f'] = 1 + 151j
+
+# edges
+E = dict()
+# E[(' ', 1+0j)]  = (' ',1j)
+# E[(' ', 0+1j)]  = (' ',1j)
+# E[(' ',-1+0j)] =  (' ',1j)
+# E[(' ', 0-1j)]  = (' ',1j)
+
+E[('a',-1+0j)] =  ('d',1)
+E[('a', 0-1j)]  = ('f',1)
+
+E[('b', 1+0j)]  = ('e',-1)
+E[('b', 0+1j)]  = ('c',-1)
+E[('b', 0-1j)]  = ('f',-1j)
+
+E[('c', 1+0j)]  = ('b',-1j)
+E[('c',-1+0j)] =  ('d',1j)
+
+E[('d',-1+0j)] =  ('a',1)
+E[('d', 0-1j)]  = ('c',1)
+
+E[('e', 1+0j)]  = ('b',-1)
+E[('e', 0+1j)]  = ('f',-1)
+
+E[('f', 1+0j)]  = ('e',-1j)
+E[('f', 0+1j)]  = ('b',1j)
+E[('f',-1+0j)] =  ('a',1j)
+
+
+def get_tile(z):
+    for tile in T:
+        if T[tile].real <= z.real < T[tile].real+L and \
+                T[tile].imag <= z.imag < T[tile].imag+L:
+            return tile
+    return ' '
+
+# for y in range(y_len):
+#     for x in range(x_len):
+#         # print(A[y][x], end='')
+#         z = x + 1j*y
+#         print(get_tile(z), end='')
+#     print()
+
+# print(get_tile(9+1j))
+# exit()
+
+def wrap2(A, z, d):
+    tile = get_tile(z)
+
+    if (tile, d) not in E.keys():
+        print(z, tile, d)
+        assert False
+
+    # print('from tile', tile, d)
+    new_tile, new_d = E[(tile,d)]
+    # print('to tile', new_tile, new_d)
+
+    rela_z = ( ((z.real - 1)%L) )
+    rela_z += ( ((z.imag - 1)%L) ) *1j
+
+    # rot = new_d / d
+
+    if d == -1j:
+        w = rela_z.real
+    elif d == 1:
+        w = rela_z.imag
+    elif d == 1j:
+        w = L-1 - rela_z.real
+    elif d == -1:
+        w = L-1 - rela_z.imag
+
+    if new_d == 1j:
+        new_rela_z = L-1 - w + 0j
+    elif new_d == -1:
+        new_rela_z = (L-1) + (L-1 - w)*1j
+    elif new_d == -1j:
+        new_rela_z = w + (L-1)*1j
+    elif new_d == 1:
+        new_rela_z = 0 + w*1j
+
+    # print('w', w)
+    # print('new_rela_z', new_rela_z)
+    new_z = T[new_tile] +  new_rela_z
+
+    if A[int(new_z.imag)][int(new_z.real)] == '#':
+        # print('unsuccessful wrap from', z)
+        return z, d
+    else:
+        # print('wrapping to', new_z)
+        return new_z, new_d
+
+
+print('res1:', solve(1))
+print('res2:', solve(2))
+
diff --git a/2022/in/day22.pzl b/2022/in/day22.pzl
new file mode 100644
index 0000000..7c83b88
--- /dev/null
+++ b/2022/in/day22.pzl
@@ -0,0 +1,202 @@
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diff --git a/2022/in/day22.ref b/2022/in/day22.ref
new file mode 100644
index 0000000..8bc2e1e
--- /dev/null
+++ b/2022/in/day22.ref
@@ -0,0 +1,14 @@
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