本来兴致勃勃的想乘着这一次上紫,于是很早很早的到了机房

但是好像并没有什么用,反而rating-=47

Codeforces Round #438(Div.1+Div.2)

今天就这样匆匆的总结一下,心情不好qaq

首先是 A.Bark to Unlock

启示:(1)不能直接把char数组进行比较!!!

(2)读题要读清,不能漏读条件!!!

 #include<bits/stdc++.h>
using namespace std;
int bo[][],n;
string s,t;
int main(){
cin>>s;
scanf("%d",&n); cin>>t;
bo[][t[]-'a']=; bo[][t[]-'a']=;
if (bo[][s[]-'a']&&bo[][s[]-'a']||bo[][s[]-'a']&&bo[][s[]-'a']){
printf("YES"); return ;
}
for (int i=;i<=n;++i){
cin>>t;
if (s==t){
printf("YES"); return ;
}
bo[][t[]-'a']=; bo[][t[]-'a']=;
if (bo[][s[]-'a']&&bo[][s[]-'a']){
printf("YES"); return ;
}
}
printf("NO");
}

然后是 B. Race Against Time

总之我的做法时先把时针,分针,秒针在秒意义下的位置,进行排序

然后把t1和t2也转化成相同状态,最后判断t1和t2分别在哪个位置

大概就是这样

 #include<bits/stdc++.h>
using namespace std;
int h,m,s,t1,t2,s1,s2,s3,a1,a2;
int main(){
cin>>h>>m>>s>>t1>>t2;
s1=*(h%)+*m+s; s2=*m+*s; s3=*s;
a1=*(t1%); a2=*(t2%);
if(s1>s2)swap(s1,s2); if(s2>s3)swap(s2,s3); if(s1>s2)swap(s1,s2);
if(a1>a2)swap(a1,a2); bool bo=;
if(s1<=a1&&a2<=s2|| s2<=a1&&a2<=s3)bo=;
if(a2<=s1||a1>=s3)bo=; if(a1<=s1&&a2>=s3)bo=;
if(bo) puts("YES"); else puts("NO");
}

最后只希望今天的CF我的rating不会掉吧,上紫我的水平可能还不够吧

Codeforces Round #438 (Div.1+Div.2) 总结的更多相关文章

  1. Educational Codeforces Round 60 (Rated for Div. 2) - C. Magic Ship

    Problem   Educational Codeforces Round 60 (Rated for Div. 2) - C. Magic Ship Time Limit: 2000 mSec P ...

  2. Educational Codeforces Round 60 (Rated for Div. 2) - D. Magic Gems(动态规划+矩阵快速幂)

    Problem   Educational Codeforces Round 60 (Rated for Div. 2) - D. Magic Gems Time Limit: 3000 mSec P ...

  3. Educational Codeforces Round 43 (Rated for Div. 2)

    Educational Codeforces Round 43 (Rated for Div. 2) https://codeforces.com/contest/976 A #include< ...

  4. Educational Codeforces Round 35 (Rated for Div. 2)

    Educational Codeforces Round 35 (Rated for Div. 2) https://codeforces.com/contest/911 A 模拟 #include& ...

  5. Codeforces Educational Codeforces Round 44 (Rated for Div. 2) F. Isomorphic Strings

    Codeforces Educational Codeforces Round 44 (Rated for Div. 2) F. Isomorphic Strings 题目连接: http://cod ...

  6. Codeforces Educational Codeforces Round 44 (Rated for Div. 2) E. Pencils and Boxes

    Codeforces Educational Codeforces Round 44 (Rated for Div. 2) E. Pencils and Boxes 题目连接: http://code ...

  7. Educational Codeforces Round 63 (Rated for Div. 2) 题解

    Educational Codeforces Round 63 (Rated for Div. 2)题解 题目链接 A. Reverse a Substring 给出一个字符串,现在可以对这个字符串进 ...

  8. Educational Codeforces Round 39 (Rated for Div. 2) G

    Educational Codeforces Round 39 (Rated for Div. 2) G 题意: 给一个序列\(a_i(1 <= a_i <= 10^{9}),2 < ...

  9. Educational Codeforces Round 48 (Rated for Div. 2) CD题解

    Educational Codeforces Round 48 (Rated for Div. 2) C. Vasya And The Mushrooms 题目链接:https://codeforce ...

随机推荐

  1. MatLab之Simulink之simple model

    Use Simulink to model a system and then simulate the dynamic behavior of that system. 1 Open in Comm ...

  2. VHDL之concurrent之generate

    GENERATE It is another concurrent statement (along with operators and WHEN). It is equivalent to the ...

  3. Caffe+Kubuntu16.04_X64+CUDA 8.0配置

    前言: 经过尝试过几次Caffe,theano,MxNet之后,很长时间没有进行caffe的更新,此次在Ubuntu16.04下安装Caffe,折腾了一天时间,终于安装成功. 参考链接:Caffe+U ...

  4. excel 打开显示安装office自定义项 安装期间出错的解决方法

    用管理员身份运行EXCEL,转到COM加载项,删除对应加载项,即可. 注:上下两张图中的加载项信息不一致,仅作图示参考.

  5. style 使用lang = ‘scss’ 报错

    <style lang="scss" rel="stylesheet/scss" scoped> .export-wrapper{ } </s ...

  6. SP1825 FTOUR2 - Free tour II 点分治+启发式合并+未调完

    题意翻译 给定一棵n个点的树,树上有m个黑点,求出一条路径,使得这条路径经过的黑点数小于等于k,且路径长度最大 Code: #include <bits/stdc++.h> using n ...

  7. String使用方式详细总结

    1.用双引号创建 2.用new String方式创建 3.双引号相加创建 4.两个new String相加时 5.两个引用相加时 6.双引号加new String创建或者new String加双引号创 ...

  8. Git 基础教程 之 添加远程仓库

    b, 本地内容推送至远程库上         git push -u origin master        实际上是把当前分支master推送到远程仓库,第一次推送时,加上-u参数, 表示Git不 ...

  9. Codeforces 892C/D

    C. Pride 传送门:http://codeforces.com/contest/892/problem/C 本题是一个关于序列的数学问题——最大公约数(GCD). 对于一个长度为n的序列A={a ...

  10. 一维数组快速转集合(List)

    String[] arr={"qwe","asd","zxc","asddf","hghgf"}; ...