https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/ 【题目】 给定一个仅包含数字 2-9 的字符串,返回所有它能表示的字母组合。 给出数字到字母的映射如下(与电话按键相同)。注意 1 不对应任何字母。 代码语言:javascript 复制 示例:输入:"23"输出:["ad","ae","af","bd","be",...
Leetcode不定期更Up,深度学习NLP方向苦难研究生,人生体验派。人生得意须尽欢( ´ ▽ ` )ノ 730 下来播放 自动连播 :54 code力扣78. Subsets子集(python版解析) 魔法少女马曰曰 237 1 :56 code力扣77. Combinations组合(python版解析) 少女马曰曰 0 ...
result.append(current)returnforcinself.digit2letters[digits[0]]: self.dfs(digits[1:], current + c, result)if__name__ =="__main__":assertSolution().letterCombinations("23") == ["ad","ae","af","bd","be","bf","cd","ce","cf"]...
https://leetcode.com/problems/letter-combinations-of-a-phone-number/ 先手工枚举,构造解空间树.标准dfs求解。 class Solution(object): def dfs(self, digits, target_lvl, mydict, subres, res): lvl = len(subres) if lvl == target_lvl: if subres: res.append(subres[:]) return else: for ...
首先放出原题:Letter Combinations of a Phone Number Given a string containing digits from2-9inclusive, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telephone buttons) is given below. Note that 1 does not map to any ...
题目链接:https://leetcode.com/problems/letter-combinations-of-a-phone-number/ 题目: Given a digit string, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telephone buttons) is given below. ...
题目链接:https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/ 给定一个仅包含数字 2-9 的字符串,返回所有它能表示的字母组合。 给出数字到字母的映射如下(与电话按键相同)。注意 1 不对应任何字母。 示例: 输入:"23" 输出:["ad", "ae", "af", "bd", "be", "bf", "cd"...
今天的题目是17. 电话号码的字母组合 :https://leetcode-cn.com/problems/letter-combinations-of-a-phone-number/ 题意 给定一个仅包含数字 2-9 的字符串,返回所有它能表示的字母组合。答案可以按 任意顺序 返回。 给出数字到字母的映射如下(与电话按键相同)。注意 1 不对应任何字母。
LeetCode 0017. Letter Combinations of a Phone Number电话号码的字母组合【Medium】【Python】【回溯】【DFS】【暴力】 Problem LeetCode Given a string containing digits from2-9inclusive, return all possible letter combinations that the number could represent. ...
leetcode: 17. Letter Combinations of a Phone Number 其他 Problem # Given a digit string, # return all possible letter combinations that the number could represent. # # A mapping of digit to letters (just like on the telephone buttons) is given below. # # Input:Digit string "23" # Outp...