Fix

Author: MaximSmolskiy

project_euler/problem_002/sol4.py

@@ -61,7 +61,7 @@ def solution(n: int = 4000000) -> int:
     if n <= 0:
         raise ValueError("Parameter n must be greater than or equal to one.")
     getcontext().prec = 100
-    phi = (Decimal(5) ** Decimal(0.5) + 1) / Decimal(2)
+    phi = (Decimal(5) ** Decimal("0.5") + 1) / Decimal(2)
 
     index = (math.floor(math.log(n * (phi + 2), phi) - 1) // 3) * 3 + 2
     num = Decimal(round(phi ** Decimal(index + 1))) / (phi + 2)