2016/9

y2016/p09.py

+import sys
+
+
+def unzip_len(text, recurse=False):
+    ptr = 0
+    size = 0
+    while ptr < len(text):
+        if text[ptr] == '(':
+            ptr += 1
+
+            l1 = ptr + text[ptr:].index('x')
+            l2 = ptr + text[ptr:].index(')')
+            span = int(text[ptr:l1])
+            repeat = int(text[l1 + 1:l2])
+
+            l3 = l2 + 1
+            l4 = l3 + span
+            frag = text[l3:l4]
+            length = unzip_len(frag, True) if recurse else len(frag)
+
+            ptr = l4
+            size += int(repeat) * length
+
+        else:
+            ptr += 1
+            size += 1
+
+    return size
+
+
+text = sys.stdin.read().strip()
+
+# ans1 = unzip_len(text)
+# print(ans1)
+
+ans2 = unzip_len(text, recurse=True)
+print(ans2)