two pointers

Author: idf

283 Move Zeroes.py

@@ -15,6 +15,7 @@
 class Solution(object):
     def moveZeroes(self, nums):
         """
+        Two pointers at the left side
         Pivot
         """
         left = -1
@@ -31,17 +32,17 @@ def moveZeroes(self, nums):
         :type nums: List[int]
         :rtype: void Do not return anything, modify nums in-place instead.
         """
-        i = 0
+        cnt = 0
         for elt in nums:
             if elt != 0:
-                nums[i] = elt
-                i += 1
+                nums[cnt] = elt
+                cnt += 1
 
-        for j in xrange(i, len(nums)):
+        for j in xrange(cnt, len(nums)):
             nums[j] = 0
 
 
 if __name__ == "__main__":
     lst = [0, 1, 0, 3, 12]
     Solution().moveZeroes(lst)
-    assert lst == [1, 3, 12, 0, 0]
+    assert lst == [1, 3, 12, 0, 0]