A.题目链接:http://codeforces.com/contest/828/problem/A

解题思路:

直接暴力模拟

#include<bits/stdc++.h>
using namespace std; int main()
{
int m,d,s,i,num=,ans=,a[];
cin>>m>>d>>s;
for(i=;i<m;i++){
cin>>a[i];
if(a[i]==&&d)
d--;
else if(a[i]==&&d==&&s){
s--;num++;
}
else if(a[i]==&&s){
s--;
}
else if(a[i]==&&s==)
ans+=;
else if(a[i]==&&s==&&d==&&num)
num--;
else if(a[i]==&&s==&&d==&&num==)
ans++;
}
cout<<ans<<endl;
}

B.题目链接:http://codeforces.com/contest/828/problem/B

思路:

暴力

#include<bits/stdc++.h>
using namespace std;
#define inf 2e9
int main()
{
char mp[][];
int m,n,i,j,num=,ans=;
cin>>m>>n;
for(i=;i<=m;i++){
for(j=;j<=n;j++){
cin>>mp[i][j];
}
}
int maxi = -inf,maxj = -inf;
int mini = inf,minj=inf;
for(i=;i<=m;i++){
for(j=;j<=n;j++){
if(mp[i][j]=='B'){
if(i>maxi)
maxi = i;
if(i<mini)
mini = i;
if(j>maxj)
maxj = j;
if(j<minj)
minj = j;
num+=;
}
}
}
if(num==){
cout<<""<<endl;
return ;}
//cout<<num<<endl;
ans = max((maxi-mini+),(maxj - minj+));
//cout<<ans<<endl;
if(ans>m||ans>n)
cout<<"-1"<<endl;
else{
cout<<ans*ans-num<<endl;
}
return ;
}

C.题目链接:http://codeforces.com/contest/828/problem/C

解题思路:

暴力会超时,he前一区域比较,如果没有重合的进行替换操作,重合跳过;

#include<bits/stdc++.h>
using namespace std;
char s[];
int main()
{
int m,n,i,j,k,pre,x,maxx = -;
string s1;
ios::sync_with_stdio(false);
cin.tie();
cin>>m;
memset(s,'a',sizeof(s));
while(m--){
cin>>s1>>n;
int len = s1.size();
pre = -len;
for(i=;i<n;i++){
cin>>x;
for(k=max(,len-(x-pre));k<len;++k){
s[x+k-] = s1[k];
pre = x;
}
maxx = max(maxx,x+len-);
}
}
for(i=;i<maxx;i++)
cout<<s[i];
cout<<endl;
return ;
}

Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) A,B,C的更多相关文章

  1. Codeforces Round #423 (Div. 1, rated, based on VK Cup Finals)

    Codeforces Round #423 (Div. 1, rated, based on VK Cup Finals) A.String Reconstruction B. High Load C ...

  2. Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) E. DNA Evolution 树状数组

    E. DNA Evolution 题目连接: http://codeforces.com/contest/828/problem/E Description Everyone knows that D ...

  3. Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) Problem E (Codeforces 828E) - 分块

    Everyone knows that DNA strands consist of nucleotides. There are four types of nucleotides: "A ...

  4. Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) D. High Load 构造

    D. High Load 题目连接: http://codeforces.com/contest/828/problem/D Description Arkady needs your help ag ...

  5. Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) C. String Reconstruction 并查集

    C. String Reconstruction 题目连接: http://codeforces.com/contest/828/problem/C Description Ivan had stri ...

  6. Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) Problem D (Codeforces 828D) - 贪心

    Arkady needs your help again! This time he decided to build his own high-speed Internet exchange poi ...

  7. Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) Problem C (Codeforces 828C) - 链表 - 并查集

    Ivan had string s consisting of small English letters. However, his friend Julia decided to make fun ...

  8. Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals) Problem A - B

    Pronlem A In a small restaurant there are a tables for one person and b tables for two persons. It i ...

  9. Codeforces Round #423 (Div. 2, rated, based on VK Cup Finals)

    题目链接:http://codeforces.com/contest/828 A. Restaurant Tables time limit per test 1 second memory limi ...

随机推荐

  1. 2-微信小程序开发(开发界面说明,按钮点击切换显示内容)

    说一个功能,大家在用微信实现控制设备的时候,是不是都在为绑定设备发愁. 我看了很多厂家的微信控制,大部分都只是可以用微信给设备配网,但是没有做用微信绑定的. 一般做绑定都是用设备的MAC地址. 这里我 ...

  2. sql语句常用功能(null值转换为0)

    COALESCE(规格,' ') 或者 COALESCE(规格,0) select * from ( ) 客户,() 物料号,p4.name 内部批次,p4.outsidename 外部批次,p1.库 ...

  3. 通过chrome浏览器分析网页加载时间

    今天趁着下班的时间看了下chrome浏览器的网页加载时间分析工具和相关文档,简单写点儿东西记录一下. 以百度首页加载为例,分析下一张图片1.jgp(就是背景图)的加载时间 看右侧的Timing标签,从 ...

  4. CF613D Kingdom and its Cities 虚树

    传送门 $\sum k \leq 100000$虚树套路题 设$f_{i,0/1}$表示处理完$i$以及其所在子树的问题,且处理完后$i$所在子树内是否存在$1$个关键点满足它到$i$的路径上不存在任 ...

  5. mysql的聚簇索引与非聚簇索引的简短总结

    [原文]https://www.jianshu.com/p/72763d47aa1a 在mysql数据库中,myisam引擎和innodb引擎使用的索引类型不同,myisam对应的是非聚簇索引,而in ...

  6. 一次永久解决cmd窗口汉字显示乱码

    对于编译出的程序,在 cmd 和 power shell 运行时都不能正确显示汉字. 网上查,可以再命令窗口修改: 1.打开CMD.exe命令行窗口 2.通过 chcp命令改变代码页,UTF-8的代码 ...

  7. Luogu P2261 [CQOI2007]余数求和

    最近中考放假几天都在怼一道BJOI2018的水题,但卡死在90pts跑不动啊! 然后今天发现终于过了然而Hack的数据全RE了然后就开始找新的题目来找回信心. 然后发现智能推荐里有这道题,然后想了1m ...

  8. run `npm audit fix` to fix them, or `npm audit` for details

    问题 added 246 packages from 681 contributors and audited 382 packages in 17.509s found 13 vulnerabili ...

  9. GlusterFS分布式存储学习笔记

    分布式文件系统 分布式文件系统(Distributed File System)是指文件系统管理的物理存储资源并不直接与本地节点相连,而是分布于计算网络中的一个或者多个节点的计算机上.目前意义上的分布 ...

  10. windows平台下编辑的内容传到linux平台出现中文乱码的解决办法

    现象说明:在windows下编辑的内容,上传到linux平台下出现中文乱码.如下: 在windows平台编写haha.txt文件,内容如下: 上传到linux平台,出现中文乱码,如下: 基本上面出现的 ...