y2024d18

test.py

@@ -1,26 +0,0 @@
-# JS sucks
-for line in open('./y2024/resources/17_input.txt'):
-    if line.startswith('Program:'):
-        instructions = list(map(int, line.split(': ')[1].split(',')))
-
-def outFromA(a):
-    interim = (a % 8) ^ 3
-    c = a // (2 ** interim)
-    postC = c ^ 6
-    return (postC ^ (a % 8)) % 8
-
-candidates = [0]
-for i in range(len(instructions) - 1, -1, -1):
-    newCandidates = []
-    # print(f'Instruction: {instructions[i]}, candidates: {candidates}')
-    for c in candidates:
-        for j in range(8):
-            num = (c << 3) + j
-            out = outFromA(num)
-            # print(f'Num: {num}, Out: {out}, Instruction: {instructions[i]}')
-            if out == instructions[i]:
-                newCandidates.append(num)
-    candidates = newCandidates
-
-# print(candidates)
-print(min(candidates))