题解 | 小红书推荐系统
小红书推荐系统
https://www.nowcoder.com/practice/e5b39c9034a84bf2a5e026b2b9b973d0
import sys
line = sys.stdin.readline().split()
d = dict()
for i in line:
if i in d.keys():
d[i] += 1
elif i not in d.keys():
d[i] = 1
d = sorted(d.items(), key=lambda x: (-x[1], x[0]))
d = dict(d)
for key, value in d.items():
if value >= 3:
print(key)
