Day 16 part 2 (WIP)

2019/day16.py

@@ -4,7 +4,19 @@ import math
 def main():
     with open("day16.txt", "rt") as input_file:
         inputs = [int(i) for i in input_file.read().rstrip()]
+    inputs_orig = inputs.copy()
 
+    # result = phaze2phaze(inputs)
+    # print(f"First 8 digits: {''.join(str(int(i)) for i in result[:8])}")
+
+    # Part 2
+    offset = int(''.join(str(i) for i in inputs[:7]))
+    inputs = [i for _ in range(10000) for i in inputs_orig]
+    result = phaze2phaze(inputs)
+    print(f"8 digits at offset: {''.join(str(int(i)) for i in result[offset:offset + 8])}")
+
+
+def phaze2phaze(inputs):
     p = [0, 1, 0, -1]
     for phase_id in range(100):
         phase_id += 1
@@ -19,7 +31,7 @@ def main():
             out = sum(a * b for a, b in zip(inputs, ex_p))
             outputs[index] = abs(math.fmod(out, 10))
         inputs = outputs
-    print(f"First 8 digits: {''.join(str(int(i)) for i in inputs[:8])}")
+    return inputs
 
 
 if __name__ == "__main__":