better name for variables

Author: aman2611

coding/python/binary_search.py

@@ -6,15 +6,15 @@
 target = random.randint(1, 50)
 
 
-def binary_search(li, le, ri, target):
- if le <= ri:
- mid = ri + le // 2
- if li[mid] == target:
+def binary_search(arr, lb, ub, target):
+ if lb <= ub:
+ mid = ub + lb // 2
+ if arr[mid] == target:
  return mid
- elif li[mid] < target:
- return binary_search(li, mid + 1, ri, target)
+ elif arr[mid] < target:
+ return binary_search(arr, mid + 1, ub, target)
  else:
- return binary_search(li, le, mid - 1, target)
+ return binary_search(arr, lb, mid - 1, target)
  else:
  return -1