Решение задачи B городской олимпиады по информатике (г. Луганск, 2019 г.)

B.py

from collections import Counter
M, N = [int(i) for i in input().split()]
members = Counter()
for _ in range(M):
    member = input()
    members[member] += 1
members = list(filter(lambda x: x[1] >= N, members.most_common()))
members = sorted(members, key=lambda x: (-x[1], x[0]))
if members:
    for member in members:
        print(member[0], member[1])
else:
    print('No truants')