IO调度的四种算法 IO调度器的总体目标是希望让磁头能够总是往一个方向移动,移动到底了再往反方向走,这恰恰就是现实生活中的电梯模型,所以IO调度器也被叫做电梯. (elevator)而相应的算法也就被叫做电梯算法.而Linux中IO调度的电梯算法有好几种,一个叫做as(Anticipatory),一 ...
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编程语言 时间:
2020-07-17 19:42:49
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Tom and Jerry are going on a vacation. They are now driving on a one-way road and several cars are in front of them. To be more specific, there are nn ...
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2020-07-17 09:30:42
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Pass a year learning in Hangzhou, yifenfei arrival hometown Ningbo at finally. Leave Ningbo one year, yifenfei have many people to meet. Especially a ...
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2020-07-17 01:14:23
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一个数最多能取8-9次根号。 #include <bits/stdc++.h> using namespace std; #define debug printf("bug!!!\n"); typedef long long ll; const int MAXN=1e5+10; const ll M ...
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2020-07-16 10:11:53
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链接:https://leetcode-cn.com/problems/subsets-ii/ 代码 class Solution { public: vector<vector<int>> ans; vector<int> path; vector<vector<int>> subsetsWith ...
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2020-07-16 00:27:10
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Description A wqb-number, or B-number for short, is a non-negative integer whose decimal form contains the sub- string "13" and can be divided by 13. ...
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2020-07-15 23:20:22
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##题面 Problem Description Queues and Priority Queues are data structures which are known to most computer scientists. The Queue occurs often in our dai ...
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其他好文 时间:
2020-07-12 17:05:48
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列一下hdu,poj,CF上常见的Stirling数相关的习题(补充完善中): hdu2643 hdu3625 hdu4372 hdu4045 POJ1430 POJ2621 CF932E CF961G CF960G ...
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2020-07-12 16:52:18
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##题面 Problem Description Lele now is thinking about a simple function f(x). If x < 10 f(x) = x. If x >= 10 f(x) = a0 * f(x-1) + a1 * f(x-2) + a2 * f(x ...
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2020-07-12 16:40:31
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#include<iostream> #include<cmath> #include<algorithm> #include<string> #include<cstring> #define DEBUG if( 1 )//是否输出调试用信息 using namespace std; int W, ...
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其他好文 时间:
2020-07-11 19:21:29
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