refactor: extract a reduce function

1 files changed, 8 insertions, 4 deletions

diff --git a/coins2.py b/coins2.py
index bc23c56..39bf534 100644
--- a/coins2.py
+++ b/coins2.py
@@ -11,17 +11,21 @@ def coins(total, coin):
     remainder = round(total % coin, 2)
     return round((total - remainder) / coin)
 
+def reduce(total, coin, number_of_coins):
+    return round(total - (number_of_coins * coin), 2)
+
 def calculate(total):
     quarters = coins(total, QUARTER)
-    total = round(total - (quarters * QUARTER), 2)
+    total = reduce(total, QUARTER, quarters)
 
     dimes = coins(total, DIME)
-    total = round(total - (dimes * DIME), 2)
+    total = reduce(total, DIME, dimes)
 
     nickels = coins(total, NICKEL)
-    total = round(total - (nickels * NICKEL), 2)
+    total = reduce(total, NICKEL, nickels)
 
-    pennies = round(total * 100)
+    pennies = coins(total, PENNY)
+    total = reduce(total, PENNY, pennies)
 
     print([quarters, dimes, nickels, pennies])
     return [quarters, dimes, nickels, pennies]