Added Python solution for "The Employee That Worked on the Longest Task"

Author: Kyrylo-Ktl

Python/The Employee That Worked on the Longest Task.py

@@ -0,0 +1,20 @@
+from typing import List
+
+
+class Solution:
+    """
+    Time:   O(n)
+    Memory: O(1)
+    """
+
+    def hardestWorker(self, n: int, logs: List[List[int]]) -> int:
+        best_id = best_time = start = 0
+
+        for emp_id, end in logs:
+            time = end - start
+            if time > best_time or (time == best_time and best_id > emp_id):
+                best_id = emp_id
+                best_time = time
+            start = end
+
+        return best_id