
以为多难,没想到emm
S,T = list(map(int,input().split()))
count = 0
for i in range(S,T+1):
if '20' not in str(i):
count += 1
print(count)
自己看吧,做题思路都懒得写,要不是难度那写了个”中”这篇文都不想发
以为多难,没想到emm
S,T = list(map(int,input().split()))
count = 0
for i in range(S,T+1):
if '20' not in str(i):
count += 1
print(count)
自己看吧,做题思路都懒得写,要不是难度那写了个”中”这篇文都不想发