제출 #1079948

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1079948		xinyubb2000	Type Printer (IOI08_printer)	Cpython 3	0 / 100	882 ms	64816 KiB

printer

class TrieNode:
    def __init__(self):
        self.children = {}
        self.is_end_of_word = False
        self.depth = 0

class Trie:
    def __init__(self):
        self.root = TrieNode()

    def insert(self, word: str) -> None:
        node = self.root
        for char in word:
            if char not in node.children:
                node.children[char] = TrieNode()
            node = node.children[char]
        node.is_end_of_word = True

    def starts_with(self, prefix: str) -> bool:
        node = self.root
        for char in prefix:
            if char not in node.children:
                return False
            node = node.children[char]
        return True

# import sys

# sys.stdin = open('1.in', 'r')

trie = Trie()

n = int(input())
for _ in range(n):
    word = input()
    trie.insert(word)

cnt = 0

def dfs1(node):
    depth = 0
    for child in node.children.values():
        depth = max(depth, dfs1(child))

    node.depth = depth + 1
    return node.depth

def dfs2(node):
    if node.is_end_of_word:
        print('P')
        global cnt
        cnt += 1
        if cnt == n:
            exit()

    for char, child in sorted(node.children.items(), key=lambda item: item[1].depth):
        print(char)
        dfs2(child)
        print('-')

dfs1(trie.root)
dfs2(trie.root)

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