boost::tuple is a generalized version of std::pair. While std::pair can only store exactly two values, boost::tuple lets you choose how many values to ...
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其他好文 时间:
2019-06-20 12:48:09
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125
题目如下: Return the lexicographically smallest subsequence of text that contains all the distinct characters of text exactly once. Example 1: Example 2: ...
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其他好文 时间:
2019-06-15 10:09:22
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108
Source: PAT A1126 Eulerian Path (25 分) Description: In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Simil ...
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其他好文 时间:
2019-06-01 21:13:11
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128
RabbitMQ和Kafka都提供持久的消息保证。两者都提供至少一次和至多一次的保证,另外,Kafka在某些限定情况下可以提供精确的一次(exactly-once)保证。 让我们首先理解一下上述术语的含义: 至多一次投递:消息绝对不会被重复投递,但是消息可能丢失 至少一次投递:消息绝对不会被丢失,但 ...
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其他好文 时间:
2019-06-01 19:36:41
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105
137. Single Number II Given a non-empty array of integers, every element appears three times except for one, which appears exactly once. Find that sin ...
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Web程序 时间:
2019-05-31 00:46:17
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158
链接:https://codeforces.com/contest/1167/problem/A 题意: A telephone number is a sequence of exactly 11 digits, where the first digit is 8. For example, t ...
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其他好文 时间:
2019-05-21 15:54:36
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176
https://leetcode.com/problems/longest-string-chain/ Let's say word1 is a predecessor of word2 if and only if we can add exactly one letter anywhere in ...
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其他好文 时间:
2019-05-19 13:59:38
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225
问题 报错ValueError: must have exactly one of create/read/write/append mode 原因是你使用了不存在的使用方式,例如rw。 合法的mode有: r、rb、r+、rb+、w、wb、w+、wb+、a、ab、a+、ab+ 这些在C语言中都有, ...
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其他好文 时间:
2019-05-18 14:00:37
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160
场景: 浏览器请求 >python数据生成 >python-生成excel >浏览器下载excel 目标: 重构为 浏览器请求 >python数据生成 >golang-生成excel >浏览器下载excel 二阶目标: 后端全部golang实现 https://developers.google.c ...
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其他好文 时间:
2019-05-12 19:44:38
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160
A character is unique in string S if it occurs exactly once in it. For example, in string S = "LETTER", the only unique characters are "L" and "R". Le ...
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其他好文 时间:
2019-04-28 09:42:03
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118