Series

budget = float(input())
volume = int(input())

for i in range(volume):
    name = input()
    cash = float(input())
    if name == "Thrones":
        cash /= 2
    elif name == "Lucifer":
        cash *= 0.6
    elif name == "Protector":
        cash *= 0.7
    elif name == "TotalDrama":
        cash *= 0.8
    elif name == "Area":
        cash *= 0.9

    budget -= cash

if budget >= 0:
    print(f"You bought all the series and left with {budget:.2f} lv.")
else:
    print(f"You need {abs(budget):.2f} lv. more to buy the series!")


Решение с тернарен оператор леко тарикатската:)

budget = float(input())
volume = int(input())

for i in range(volume):
    name = input()

    budget -= (0.5 if name == 'Thrones' else
               0.6 if name == 'Lucifer' else
               0.7 if name == 'Protector' else
               0.8 if name == 'TotalDrama' else
               0.9 if name == 'Area' else 1) * float(input())

print(f'You bought all the series and left with {budget:.2f} lv.' if budget >= 0
      else f'You need {abs(budget):.2f} lv. more to buy the series!')