Group Anagrams

Given a list of lowercase words, group words that are anagrams of each other. Input format: - First line: n - Next n lines: one word per line Sort words inside each group alphabetically. Sort groups by their first word. Print one group per line with words separated by spaces.

1 <= n <= 10^4
1 <= word length <= 100
Words contain lowercase English letters.

6
eat
tea
tan
ate
nat
bat

ate eat tea
bat
nat tan

1
a

a