Anagrams

n = int(input())

groups = {}
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 groups:
        groups[group] = []
    groups[group].append(word)

print(len([group for group, elements in groups.items() if len(elements) >= 2]))
for group, elements in groups.items():
    if len(elements) >= 2:
        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