原因是什么呢?是ts编译器在编译时诊断到document.getElementById('test')可能会为null,所以给出了这样一个提示:对象可能为null,解决方式是这样: document.getElementById('test')!.innerHTML = greeter(user);
原创 2022-01-20 10:20:11
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看了一下0ms,16ms,100ms左右过了的代码,思维量对我来说比較大,不是非常easy理解。我的作法:用并查集算权值和。用dfs枚举两个点集的全部可能,因为是全然图,枚举一半的点就可以。#include#includeusing namespace std;int map[30][30],N,v...
转载 2014-08-11 14:30:00
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// 3916K 375MS G++#include #include using namespace std; #define MAX 22 int NodeBitId[MAX]; int G[MAX][MAX]; it
原创 2023-05-23 16:04:36
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题目链接:http://poj.org/problem?id=2531思路:由于N才20,可以dfs爆搞,枚举所有的情况,复杂度为2^(n)。 1 #include 2 #include 3 #include 4 #include 5 using namespace std; 6 7 int map[22][22]; 8 int belong[22]; 9 int n,ans;10 11 void dfs(int pos,int sum)12 {13 if(pos==n+1){14 ans=max(ans,sum);15 return ;16 ...
转载 2013-09-02 19:14:00
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Network Saboteur Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 13748 Accepted: 6700 Description A university network is composed of N com
转载 2018-02-04 20:58:00
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现象: git clone 或是 git pull的时候会出错,error 大概如下 remote: Enumerating objects: 7433, done.remote: Counting objects: 100% (7433/7433), done.error: pack-object
转载 2021-06-25 23:07:00
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http://poj.org/problem?id=2531 1 import java.util.*; 2 import java.math.*; 3 public class Main { 4 public static int ans=0; 5 public static vo...
转载 2014-07-08 17:09:00
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#include<iostream> //dfs,实质是利用dfs生成组合数using namespace std;int ans[25],n,matrix[21][21],sum;void dfs(int b){ if(b>n) { int s=0; for(int i=1;i<=n;++i) if(ans[i]==1) for(int j=1;j<=n;++j) if(ans[j]==0) s+=matrix[i][j]; sum=max(sum,s); } for(int i=b;i<=n;++i) { if(ans[i]==1) continue;
转载 2011-07-22 19:47:00
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原题链接 考察:dfs 不看算法标签完全看不出是dfs系列 思路: 枚举每一个点选与不选的集合.依次考虑几个剪枝: 搜索顺序剪枝,可能要按点权值和排序?,这样写挺麻烦的= = 最优性剪枝,这里本蒟蒻不知道怎么剪,可能存在选d较小,选c较大,但是选d a是ans的情况. 可行性剪枝,如果算出来加入这个
转载 2021-03-10 09:18:00
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注意sum的改变共2^20种情况,应该也可以用位运算Program P2531;Var n,i,j:longint; a:array[1..20,1..20] of longint; b:array[1..20] of boolean; ans:longint;procedure dfs(k,sum:longint);var i,j,sum2:l
原创 2012-08-08 11:01:24
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在使用git的过程中,一直出现fatal: protocol error: bad pack header,导致git无法更新以及上传。具体报错见以下: fatal: git upload-pack: aborting due to possible repositor
原创 2022-07-09 00:07:55
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Network Saboteur Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 10216 Accepted: 4885 Description A university network is composed of N com
转载 2017-06-14 14:43:00
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Des
原创 2022-08-10 10:48:04
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把第i个节点 放在A集合中 加上没有放在A集合中的节点与之相连的数值 减去已经放在A节点中与之相连的数值View Code 1 #include <iostream>
转载 2013-01-26 15:27:00
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Description A university network is composed of N computers. System administrators gathered information on the traffic between nodes, and carefully divided the network into two subnetworks in order t
转载 2013-12-09 10:53:00
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Description
原创 2023-02-03 10:03:10
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Network Saboteur Time Limit: 2000MS   Memory Limit: 65536K Total Submissions: 10084   Accepted: 4819 Description A university network is composed of N computers. System a
原创 2023-04-21 02:10:02
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  Catch him Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 444    Accepted Submission(s): 204 Problem Description 在美式足球中,四分卫负责指挥整只
转载 2013-07-28 21:21:00
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Network Saboteur Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 9364 Accepted: 4417 Description A university network is composed of N comp
转载 2017-05-13 14:33:00
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Catch him Time Limit: 5000/1000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 444Accepted Submission(s):
转载 2013-07-27 21:42:00
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