[pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

Author: pre-commit-ci[bot]

data_structures/stacks/largest_rectangle_histogram.py

@@ -6,14 +6,14 @@
 
 THESE ARE THE ALGORITHM'S RULES:
 RULE 1: Scan `heights` array in left to right direction
-        if the height at this index is greater than the height at the top position of `stack` 
+        if the height at this index is greater than the height at the top position of `stack`
         we push the index at `stack`.
 
 RULE 2: If the `height` at the current `index` is smaller than the `height` at the top of the `stack`
-        process the stack now. Pop top `index` from `stack`. 
-        The `height` of the rectangle = `height` at popped `index`. 
-        Calculate `width` of the rectangle:  
-        if the `stack` is not empty. 
+        process the stack now. Pop top `index` from `stack`.
+        The `height` of the rectangle = `height` at popped `index`.
+        Calculate `width` of the rectangle:
+        if the `stack` is not empty.
         Then the `width` extends from `begin` of the `histogram` till current `index`.
         If the stack is not empty, the width stretches from a current index to an index that immediately comes after new stack top
 
@@ -31,6 +31,7 @@
 
 __author__ = "Ansh Dulewale"
 
+
 def largestRectangleArea(heights):
     stack = []
     max_area = 0
@@ -46,6 +47,7 @@ def largestRectangleArea(heights):
     heights.pop()  # Restore the original heights array.
     return max_area
 
+
 # Get input from the user
 user_input = input()
 heights = list(map(int, user_input.split()))