Initial commit

simprizza.py

@@ -0,0 +1,76 @@
+#!/usr/bin/env python
+
+import math
+
+
+def main():
+	print("Reduction in cents: ", end="")
+	reduction = int(input())
+	print()
+
+	prices = []
+	i = 1
+	done = False
+	while not done:
+
+		if i == 1:
+			print(f"Price {i} in cents: ", end="")
+		else:
+			print(f"Price {i} (empty to finish): ", end="")
+		read = input()
+		if not read:
+			break
+		price = int(read)
+
+		print(f"  Amount of orders at this price: ", end="")
+		amount = int(input())
+
+		print()
+
+		prices.append((amount, price))
+
+		i += 1
+
+	print()
+
+	print("----------------")
+	print()
+
+	total_without_reduction = sum(amount * price for amount, price in prices)
+	total_with_reduction = total_without_reduction - reduction
+
+	reduction_percentage = reduction / total_without_reduction
+	reduction_prices = [
+		math.ceil((1 - reduction_percentage) * price)
+		for _, price in prices
+	]
+	total_reducted_prices = sum(
+		amount * reduction_price
+		for (amount, _), reduction_price in zip(prices, reduction_prices)
+	)
+	gap = total_with_reduction - total_reducted_prices
+
+	total_items = sum(amount for amount, _ in prices)
+
+
+	print(f"You got {reduction_percentage:.0%} reduction")
+	print()
+
+	print(" # | Normal price | Reduction price")
+	print("---|--------------|----------------")
+
+	for (amount, price), reduction_price in zip(prices, reduction_prices):
+		print(f"{amount:2d} | €{price/100:11.2f} | €{reduction_price/100:14.2f}")
+
+	print("---|--------------|----------------")
+	print(f"{total_items:2d} | €{total_without_reduction/100:11.2f} | €{total_reducted_prices/100:14.2f}")
+	if abs(gap) > 1e-9:
+		print(f"           You paid €{total_with_reduction/100:14.2f}")
+		if gap < 0:
+			print(f"This solution has a bonus of {-gap}¢ for the courier.")
+		else:
+			print(f"This solution leaves {gap}¢ unaccounted for.")
+
+
+if __name__ == "__main__":
+	main()