Create add-minimum-number-of-rungs.py

Author: kamyu104

Python/add-minimum-number-of-rungs.py

@@ -0,0 +1,18 @@
+# Time:  O(n)
+# Space: O(1)
+
+class Solution(object):
+    def addRungs(self, rungs, dist):
+        """
+        :type rungs: List[int]
+        :type dist: int
+        :rtype: int
+        """
+        def ceil_divide(a, b):
+            return (a+(b-1))//b
+
+        result = prev = 0
+        for curr in rungs:
+            result += ceil_divide(curr-prev, dist)-1
+            prev = curr
+        return result