Update max_heap.py

Author: halilylm

data_structures/heap/max_heap.py

@@ -41,9 +41,10 @@ def __swap_down(self, i: int) -> None:
             if 2 * i + 1 > self.__size:
                 bigger_child = 2 * i
             else:
-                bigger_child = 2 * \
-                               i if self.__heap[2 * i] > self.__heap[2 *
-                                                                     i + 1] else 2 * i + 1
+                if self.__heap[2 * i] > self.__heap[2 * i + 1]:
+                    bigger_child = 2 * i
+                else:
+                    bigger_child = 2 * i + 1
             temporary = self.__heap[i]
             if self.__heap[i] < self.__heap[bigger_child]:
                 self.__heap[i] = self.__heap[bigger_child]