백준 9498 (파이썬)

1.문제

https://www.acmicpc.net/problem/9498

2.코드

score = int(input())
if score >= 90 and score <= 100 : print("A")
elif score >= 80 and score <= 89 : print("B")
elif score >= 70 and score <= 79 : print("C")
elif score >= 60 and score <= 69 : print("D")
else : print("F")

3.코드해설