CODEFORCE 246 Div.2 B题
题目例如以下:
1 second
256 megabytes
standard input
standard output
Consider a football tournament where n teams participate. Each team has two football kits: for home games, and for away games. The kit for home games of the
i-th team has color
xi and the kit for away games of this team has color
yi
(xi ≠ yi).
In the tournament, each team plays exactly one home game and exactly one away game with each other team (n(n - 1) games in total). The team, that plays the home game, traditionally plays in its home kit. The
team that plays an away game plays in its away kit. However, if two teams has the kits of the same color, they cannot be distinguished. In this case the away team plays in its home kit.
Calculate how many games in the described tournament each team plays in its home kit and how many games it plays in its away kit.
The first line contains a single integer n
(2 ≤ n ≤ 105) — the number of teams. Next
n lines contain the description of the teams. The
i-th line contains two space-separated numbers
xi,
yi
(1 ≤ xi, yi ≤ 105; xi ≠ yi)
— the color numbers for the home and away kits of the i-th team.
For each team, print on a single line two space-separated integers — the number of games this team is going to play in home and away kits, correspondingly. Print the answers for the teams in the order they appeared in the input.
2
1 2
2 1
2 0
2 0
3
1 2
2 1
1 3
3 1
4 0
2 2
刚開始用双重循环查找超时了,最后改为二分查找AC。
代码例如以下:
CODEFORCE 246 Div.2 B题的更多相关文章
- Codeforces Round #246 (Div. 2)——D题
KMP算法,没写出来,完全不理解NEXT数组.现在理解了很多 答案都在程序中 ,不过这个思想真的很神奇, 还有毛语不好,一直没看懂题目,现在懂了, 大概是:S中前缀等于后缀,求其长度,和其在S中出现了 ...
- Codeforces Round #246 (Div. 2) D. Prefixes and Suffixes
D. Prefixes and Suffixes You have a string s = s ...
- Codeforces Round #378 (Div. 2) D题(data structure)解题报告
题目地址 先简单的总结一下这次CF,前两道题非常的水,可是第一题又是因为自己想的不够周到而被Hack了一次(或许也应该感谢这个hack我的人,使我没有最后在赛后测试中WA).做到C题时看到题目情况非常 ...
- Codeforces Round #246 (Div. 2)
题目链接:Codeforces Round #246 (Div. 2) A:直接找满足的人数,然后整除3就是答案 B:开一个vis数组记录每一个衣服的主场和客场出现次数.然后输出的时候主场数量加上反复 ...
- Codeforces#441 Div.2 四小题
Codeforces#441 Div.2 四小题 链接 A. Trip For Meal 小熊维尼喜欢吃蜂蜜.他每天要在朋友家享用N次蜂蜜 , 朋友A到B家的距离是 a ,A到C家的距离是b ,B到C ...
- Codeforces Round #612 (Div. 2) 前四题题解
这场比赛的出题人挺有意思,全部magic成了青色. 还有题目中的图片特别有趣. 晚上没打,开virtual contest打的,就会前三道,我太菜了. 最后看着题解补了第四道. 比赛传送门 A. An ...
- Codeforce#331 (Div. 2) A. Wilbur and Swimming Pool(谨以此题来纪念我的愚蠢)
C time limit per test 1 second memory limit per test 256 megabytes input standard input output stand ...
- Codeforces Round #713 (Div. 3)AB题
Codeforces Round #713 (Div. 3) Editorial 记录一下自己写的前二题本人比较菜 A. Spy Detected! You are given an array a ...
- Codeforces Round #786 (Div. 3) 补题记录
小结: A,B,F 切,C 没写 1ll 对照样例才发现,E,G 对照样例过,D 对照样例+看了其他人代码(主要急于看后面的题,能调出来的但偷懒了. CF1674A Number Transforma ...
随机推荐
- Object类介绍
一.Object类介绍
- 修改Android手机的“虚拟机堆大小”和android:largeHeap来防止APP内存溢出问题
使用“RAM Manager”修改“虚拟机堆大小”为某一个阀值 xxMB大小 修改 AndroidManifest.xml 里的 Application 标签的属性 android:largeHeap ...
- duilib relativepos属性导致控件错误的bug修复
转载请说明出处,谢谢~~ 我在仿酷狗音乐播放器的开发日志系列里,曾经提到了这个bug,文章地址为:http://blog.csdn.net/zhuhongshu/article/details/381 ...
- cocos2d-x 详解之 CCLayer(触摸事件)
CCLayer继承自CCNode,在CCLayer中可以实现单点触摸.多点触摸和重力感应回调3种不同形式的交互.这部分的难点在于,当存在多个层都要去接收触摸时它的响应机制是如何处理的.了解内部的处理机 ...
- 通过简单的Linux内核启动程序代码窥探操作系统的启动原理
作者:吴乐 山东师范大学 <Linux内核分析> 孟宁 MOOC课程http://mooc.study.163.com/course/USTC-1000029000 一.程序设计与分析 ...
- 产品设计敏感度之kindle touch 4
这种训练方法来自于<嵌入式系统开发之道:菜鸟成长日志与项目经理的私房菜>,名字真够长的,但是里面都是干货,我虽然之前有短评这本书,但是后面看完之后会继续再做一个详细的感悟记录. 选出身边的 ...
- MFC记住上次路径---遇到的一些问题
今天完成一个需求,就是记住用户选择的文件路径,先是熟悉代码,然后在网上找解决方法,一开始感觉没什么,网上的方法差不多,应该很容易做出来,结果真是卡了一半天,到晚上自己才慢慢的搞清楚了. 遇到的问题真不 ...
- 开源项目SuperSocket的学习笔记
近几日想在一个项目中引进一个Socket Server,用来接收客户端发送的命令消息并根据具体的业务逻辑对消息进行处理,然后转发给其它在线的客户端.因为以前在博客园关注过江大渔开源的SuperSock ...
- homework08
1.局部变量生命周期 #include "iostream.h" ;} int main() { ; add1(n); cout << n << endl; ...
- Spring的ControllerAdvice注解
@ControllerAdvice,是spring3.2提供的新注解,其实现如下所示: @Target(ElementType.TYPE) @Retention(RetentionPolicy.RUN ...