update 283

Author: KaidiGuo

Two Pointers/283. Move Zeroes.py

@@ -0,0 +1,14 @@
+# nums[p2] = 0 is used to set allocated number to 0
+# this row needs to be placed before nums[p1] = element
+# because if there is only one element in the list, put nums[p2] = 0 later will overwrite the correct answer
+
+class Solution:
+    def moveZeroes(self, nums: List[int]) -> None:
+        p1,p2=0,0
+        for p2, element in enumerate(nums):
+            if element != 0:
+                nums[p2] = 0
+                nums[p1] = element
+                p1 += 1
+               
+        return nums