Vasya came up with a password to register for EatForces — a string ss. The password in EatForces should be a string, consisting of lowercase and upper ...
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其他好文 时间:
2018-10-04 10:35:08
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275
Given an integer array of size n, find all elements that appear more than ? n/3 ? times. Note: The algorithm should run in linear time and in O(1) spa ...
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其他好文 时间:
2018-10-02 14:09:16
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153
Given an integer n, return the number of trailing zeroes in n!. Example 1: Example 2: Note: Your solution should be in logarithmic time complexity. 给一 ...
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其他好文 时间:
2018-10-02 13:53:46
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138
PHP 基本代码规范 PSR 1 本节我们将会讨论一些基本的代码规范问题,以此作为将来讨论更高级别的代码分享和技术互用的基础。 RFC 2119中的 ,`不可(MUST NOT) 建议(SHOULD) 不建议(SHOULD NOT) 可以/可能(MAY)`等关键词将在本节用来做一些解释性的描述。 1 ...
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Web程序 时间:
2018-10-01 19:51:54
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196
基本代码规范RFC 2119中的 必须(MUST) ,不可(MUST NOT),建议(SHOULD),不建议(SHOULD NOT),可以/可能(MAY)等关键词将在本节用来做一些解释性的描述。 1. 概述 源文件必须只使用 <?php 和 <?= 这两种标签。 源文件中php代码的编码格式 必须 ...
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其他好文 时间:
2018-10-01 19:14:24
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217
Description Consider a single-elimination football tournament involving 2n teams, denoted 1, 2, …, 2n. In each round of the tournament, all teams stil ...
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其他好文 时间:
2018-09-30 22:46:22
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202
Write a program that outputs the string representation of numbers from 1 to n. But for multiples of three it should output “Fizz” instead of the numbe ...
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其他好文 时间:
2018-09-30 13:02:36
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170
You are given a list of non-negative integers, a1, a2, ..., an, and a target, S. Now you have 2 symbols + and -. For each integer, you should choose o ...
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其他好文 时间:
2018-09-29 14:27:08
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469
Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the first two lists. ...
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其他好文 时间:
2018-09-28 22:08:12
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169
The string "PAYPALISHIRING" is written in a zigzag pattern on a given number of rows like this: (you may want to display this pattern in a fixed font ...
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其他好文 时间:
2018-09-28 19:13:37
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164