Anagrams

n = int(input())

groups = {}
alones = {}
alphabet = "abcdefghijklmnopqrstuvwxyz"

for i in range(n):
    word = input()
    chars = [0] * 26
    for c in word:
        chars[alphabet.index(c)] += 1
    group = " ".join([str(char) for char in chars])

    if group not in alones:
        alones[group] = word
    else:
        if group not in groups:
            groups[group] = [alones[group]]
        groups[group].append(word)

print(len(groups))
for group, elements in groups.items():
    print(len(elements))
    print("\n".join(elements))

Test 1

Verdict: ACCEPTED

Test 2

Verdict: TIME LIMIT EXCEEDED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: TIME LIMIT EXCEEDED

Test 5

Verdict: TIME LIMIT EXCEEDED

Test 6

Verdict: TIME LIMIT EXCEEDED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED