1

def solution(price):
discount=0

if 100000<=price < 300000:
    price -= price*0.05
elif 300000<= price < 500000:
    price -= price*0.1
elif 500000 <= price :
    price -= price*0.2
    
return int(price)

2

def solution(price):
discount=0

if 100000<=price < 300000:
    discount = price*0.05
elif 300000<= price < 500000:
    discount = price*0.1
elif 500000 <= price :
    discount = price*0.2
    
return int(price – discount)

3

def solution(price):
discount=0

if 500000<=price:
    price*= 0.8
elif 300000<= price < 500000:
    price*= 0.9
elif 100000 <= price :
    price*= 0.95
    
return int(price)