add some array playing

arrays_and_strings/array-move-zeros-inplace.py

@@ -0,0 +1,42 @@
+'''
+Given an integer array nums, move all 0's to the end of it while
+maintaining the relative order of the non-zero elements.
+
+Note that you must do this in-place without making a copy of the array.
+Example 1:
+
+Input: nums = [0,1,0,3,12]
+Output: [1,3,12,0,0]
+Example 2:
+
+Input: nums = [0]
+Output: [0]
+'''
+
+
+def move_zeroes(nums: list[int]) -> list[int]:
+        """
+        Do not return anything, modify nums in-place instead.
+        """
+        
+        i = 0
+        
+        while i < len(nums) - 1:
+            
+            if nums[i] == 0:
+                j = i + 1
+                while nums[j] == 0 and j < len(nums) - 1:
+                    j += 1
+                    
+                nums[i], nums[j] = nums[j], nums[i]
+            
+            i += 1
+            
+            
+        return nums
+
+
+if __name__ == "__main__":
+
+    nums = [0,1,0,3,12]
+    assert(move_zeroes(nums) == [1,3,12,0,0])