refactor: use descriptive parameter name number instead of n (algorithms-keeper)

Author: MeiSiristhebest

maths/digital_root.py

@@ -12,12 +12,12 @@
 """
 
 
-def digital_root(n: int) -> int:
+def digital_root(number: int) -> int:
     """
-    Return the digital root of a non-negative integer n.
+    Return the digital root of a non-negative integer number.
 
     The digital root is the single-digit value obtained by repeatedly summing
-    the decimal digits of n until only one digit remains. The input is taken by
+    the decimal digits of number until only one digit remains. The input is taken by
     its absolute value, so negative numbers behave like their positive
     counterpart.
 
@@ -34,10 +34,10 @@ def digital_root(n: int) -> int:
     >>> digital_root(999999999999)
     9
     """
-    n = abs(n)
-    while n >= 10:
-        n = sum(int(digit) for digit in str(n))
-    return n
+    number = abs(number)
+    while number >= 10:
+        number = sum(int(digit) for digit in str(number))
+    return number
 
 
 if __name__ == "__main__":