count=0
s=''
try:
while True:
s=s+input()+' '
except: pass
print(len(set(s.split())))
python 牛客真题 下厨房
最新推荐文章于 2025-05-06 14:40:22 发布
count=0
s=''
try:
while True:
s=s+input()+' '
except: pass
print(len(set(s.split())))