[Python/2017] Move solutions into .py files

Python/2017/13.py

@@ -0,0 +1,56 @@
+from lib import *
+
+input = read_input(2017, 13)
+
+lines = input.splitlines()
+
+
+R = {}
+S = {}
+for line in lines:
+    a, b = map(int, line.split(": "))
+    R[a] = b
+    S[a] = 0
+
+n = max(S)
+out = 0
+for i in range(n):
+    if i in S and S[i] == 0:
+        out += i * R[i]
+
+    for k, v in S.items():
+        S[k] = (v + 1) % (R[k] * 2 - 2)
+
+print(out)
+
+
+def step(R, S):
+    for k, v in S.items():
+        S[k] = (v + 1) % (R[k] * 2 - 2)
+
+
+R = {}
+SC = {}
+for line in lines:
+    a, b = map(int, line.split(": "))
+    R[a] = b
+    SC[a] = 0
+
+n = max(SC)
+
+
+def test():
+    S = SC.copy()
+    for i in range(n + 1):
+        if i in S and S[i] == 0:
+            return False
+        step(R, S)
+    return True
+
+
+k = 0
+while not test():
+    k += 1
+    step(R, SC)
+
+print(k)