Given an arbitrary ransom note string and another string containing letters from all the magazines, write a function that will return true if the rans ...
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其他好文 时间:
2017-03-25 19:46:01
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130
题目: Given a string which consists of lowercase or uppercase letters, find the length of the longest palindromes that can be built with those letters. ...
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其他好文 时间:
2017-03-24 10:32:02
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125
#!/usr/bin/envpython#coding:utf8#随机生成8位、20位、10位密码importrandomimportstringall_chs=string.letters+string.digitsdefgen_pass(num=8):pwd=‘‘#num=int(raw_input(‘numer:‘))foriinrange(num):mima=random.choice(all_chs)pwd+=mimareturnpwdif__name__==‘__main__..
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编程语言 时间:
2017-03-21 13:21:25
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179
importstringdefis_valid_identifier(param):alphas=string.letters+‘_‘nums=string.digitsiflen(param)>1:ifparam[0]notinalphas:print‘invalid:firstsymbolmustbealphabetic‘else:forotherCharinparam[1:]:ifotherCharnotinalphas+nums:print‘invalid:remindingsymbolsmus..
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编程语言 时间:
2017-03-20 19:44:42
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387
第一反应感觉是排列组合及字符匹配问题 【既不是可重复排列,有可能不是全排列】 ...
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编程语言 时间:
2017-03-15 12:48:52
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224
A message containing letters from A-Z is being encoded to numbers using the following mapping: Given an encoded message containing digits, determine t ...
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其他好文 时间:
2017-03-13 15:11:13
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172
A message containing letters from A-Z is being encoded to numbers using the following mapping: Given an encoded message containing digits, determine t ...
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其他好文 时间:
2017-03-13 13:31:18
阅读次数:
129
[SPOJ8222]Substrings 试题描述 You are given a string S which consists of 250000 lowercase latin letters at most. We define F(x) as the maximal number of t ...
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其他好文 时间:
2017-03-13 11:17:35
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210
using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.IO;using System.Diagnostics; namespace GuessWord{ class ...
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其他好文 时间:
2017-03-11 12:47:36
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155
A regular palindrome is a string of numbers or letters that is the same forward as backward. For example, the string "ABCDEDCBA" is a palindrome becau ...
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其他好文 时间:
2017-03-10 13:12:58
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270