In a given integer array nums, there is always exactly one largest element. Find whether the largest element in the array is at least twice as much as ...
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其他好文 时间:
2018-08-28 13:07:04
阅读次数:
201
题目传送门:http://codeforces.com/contest/799/problem/C C. Fountains time limit per test 2 seconds memory limit per test 256 megabytes input standard input ...
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编程语言 时间:
2018-08-26 20:51:06
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184
Count Numbers 题目描述 Now Alice wants to sum up all integers whose digit sum is exactly ab .However we all know the number of this kind of integers are u ...
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其他好文 时间:
2018-08-25 21:48:53
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256
Notice that the number 123456789 is a 9-digit number consisting exactly the numbers from 1 to 9, with no duplication. Double it we will obtain 2469135 ...
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其他好文 时间:
2018-08-25 00:34:05
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233
Problem Description: Given an array of integers, return indices of the two numbers such that they add up to a specific target. You may assume that eac ...
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编程语言 时间:
2018-08-24 23:41:35
阅读次数:
196
[抄题]: Given a positive 32-bit integer n, you need to find the smallest 32-bit integer which has exactly the same digits existing in the integer n and ...
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其他好文 时间:
2018-08-21 22:40:44
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313
天天和数据库打交道,powderdesigner设计表,数据库简单操作——增删改,上面是操作数据库大头,项目也用到redis,读写分离的;数据慢慢变多,开始时候表没有建什么索引,后面会慢慢多起来。 索引:我理解这个和书的目录相同,通过特定方式快速查找要的内容, 原因:索引查找过程中就要产生磁盘I/O ...
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数据库 时间:
2018-08-20 23:49:39
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252
In graph theory, an Eulerian path is a path in a graph which visits every edge exactly once. Similarly, an Eulerian circuit is an Eulerian path which ...
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其他好文 时间:
2018-08-20 17:22:11
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225
Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a specific target number. The function ...
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其他好文 时间:
2018-08-19 14:47:18
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194
这道题一眼就是一个DP(大雾),但题目中有一句很有趣的话 “He wants to visit all the cells exactly once and maximize the total weight of the collected mushrooms.” 也就是每个格子必须且只能经过一次 ...
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其他好文 时间:
2018-08-18 13:09:47
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206