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[?*]Letter Combinations of a Phone Number
Given a digit string, return all possible letter combinations that the number could represent.A mapping of digit to letters (just like on the telephon...
分类:其他好文   时间:2015-11-17 08:24:43    阅读次数:199
LeetCode OJ:Decode Ways(解码方法)
A message containing letters fromA-Zis being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26Given an encoded message conta...
分类:其他好文   时间:2015-11-14 18:02:29    阅读次数:247
Leetcode Decode Ways
A message containing letters fromA-Zis being encoded to numbers using the following mapping:'A' -> 1'B' -> 2...'Z' -> 26Given an encoded message conta...
分类:其他好文   时间:2015-11-14 06:25:36    阅读次数:288
Machine Learning for hackers读书笔记(七)优化:密码破译
#凯撒密码:将每一个字母替换为字母表中下一位字母,比如a变成b。english.letters<-c('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u
分类:系统相关   时间:2015-11-08 17:43:19    阅读次数:234
lintcode 中等题: Implement Trie
题目Implement TrieImplement a trie with insert, search, and startsWith methods.样例注意You may assume that all inputs are consist of lowercase letters a-z.解...
分类:其他好文   时间:2015-11-06 20:47:13    阅读次数:267
Word Search II
Given a 2D board and a list of words from the dictionary, find all words in the board.Each word must be constructed from letters of sequentially adjac...
分类:其他好文   时间:2015-11-06 01:38:08    阅读次数:296
Word Search
Given a 2D board and a word, find if the word exists in the grid.The word can be constructed from letters of sequentially adjacent cell, where "adjace...
分类:其他好文   时间:2015-11-05 23:58:27    阅读次数:336
Codeforces Round #327 (Div. 2) B. Rebranding C. Median Smoothing
B. RebrandingThe name of one small but proud corporation consists ofnlowercase English letters. The Corporation has deci...
分类:其他好文   时间:2015-11-01 21:12:54    阅读次数:430
HDU 5056 Boring count(BestCoder Round #11 (Div. 2))
Problem Description:You are given a string S consisting of lowercase letters, and your task is counting the number of substring that the number of eac...
分类:其他好文   时间:2015-10-30 20:22:11    阅读次数:169
异常:Error: Aesthetics must either be length one, or the same length as the dataProblems:AData
今天遇到一个异常,代码如下:set.seed(12345)require(ggplot2)AData <- data.frame(Glabel=LETTERS[1:7], A=rnorm(7, mean = 0, sd = 1), B=rnorm(7, mean = 0, sd = 1))i <- ...
分类:其他好文   时间:2015-10-28 17:14:02    阅读次数:1081
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