Improve Project Euler problem 070 solution 1 (#5166)

* Change has_same_digits doctest

* Improve has_same_digits function

project_euler/problem_070/sol1.py

@@ -60,34 +60,16 @@ def has_same_digits(num1: int, num2: int) -> bool:
     Return True if num1 and num2 have the same frequency of every digit, False
     otherwise.
 
-    digits[] is a frequency table where the index represents the digit from
-    0-9, and the element stores the number of appearances. Increment the
-    respective index every time you see the digit in num1, and decrement if in
-    num2. At the end, if the numbers have the same digits, every index must
-    contain 0.
-
     >>> has_same_digits(123456789, 987654321)
     True
 
-    >>> has_same_digits(123, 12)
+    >>> has_same_digits(123, 23)
     False
 
     >>> has_same_digits(1234566, 123456)
     False
     """
-    digits = [0] * 10
-
-    while num1 > 0 and num2 > 0:
-        digits[num1 % 10] += 1
-        digits[num2 % 10] -= 1
-        num1 //= 10
-        num2 //= 10
-
-    for digit in digits:
-        if digit != 0:
-            return False
-
-    return True
+    return sorted(str(num1)) == sorted(str(num2))
 
 
 def solution(max: int = 10000000) -> int: