Time: 555 ms (92.73%) | Memory: 31.9 MB (10.30%) - LeetSync

Author: mrprashantkumar

3094-minimum-number-of-operations-to-make-array-empty/minimum-number-of-operations-to-make-array-empty.py

@@ -0,0 +1,11 @@
+class Solution:
+    def minOperations(self, nums: List[int]) -> int:
+        d = Counter(nums)
+        ans = 0
+        
+        for i in d:
+            if d[i] == 1:
+                return -1
+            ans += (d[i]+2)//3
+        
+        return ans