2016/15

y2016/p15.py

+import collections
+import itertools
+import re
+import sys
+
+
+text = sys.stdin.read()
+dqs = []
+for line in text.splitlines():
+    k, ps, _, i = map(int, re.findall(r'\d+', line))
+    dq = collections.deque(range(ps))
+    dq.rotate(-i - k + 1)
+    dqs.append(dq)
+
+for i in itertools.count():
+    for dq in dqs:
+        dq.rotate(-1)
+    if len({dq[0] for dq in dqs}) == 1:
+        break
+print(i)