题面描述 Alex doesn't like boredom. That's why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and decided to play it. 亚历克斯不喜欢无聊.这就是为什么每当他感到无聊时,他就会想出一些游戏.在一个漫长的冬日傍晚,他想出了一个游戏并决定玩它. Given a sequence a consisti…

Boredom CF#260 div2 C. Boredom Codeforces Round #260 C. Boredom time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Alex doesn't like boredom. That's why whenever he gets bored, he comes up wit…

A. Boredom Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/455/problem/A Description Alex doesn't like boredom. That's why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and d…

Boredom 题目链接: http://acm.hust.edu.cn/vjudge/contest/121334#problem/G Description Alex doesn't like boredom. That's why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and decided to play it. Given a sequ…

A. Boredom time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Alex doesn't like boredom. That's why whenever he gets bored, he comes up with games. One long winter evening he came up with a ga…

C. Boredom time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Alex doesn't like boredom. That's why whenever he gets bored, he comes up with games. One long winter evening he came up with a ga…

Alex doesn't like boredom. That's why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and decided to play it. Given a sequence a consisting of n integers. The player can make several steps. In a single s…

题目链接:853C - Boredom/854E - Boredom 题目大意:在\(n\times n\)的方格中,每一行,每一列都恰有一个被标记的方格,称一个矩形为漂亮的当且仅当这个矩形有两个角是被标记的方格(这样的矩形有\(\frac{n(n-1)}{2}\)个).给出\(q\)组询问,询问为一个二维区间,问有多少个漂亮的矩形与之相交. 题解:考虑每一个询问,将题中的方格分为如图所示9个区间 每个区间上的数字表示该区间内包含的被标记的点的个数,其中B[1]是询问的区域,为闭区间 将这些区间…

题目链接:CodeForces -456C Description Alex doesn't like boredom. That's why whenever he gets bored, he comes up with games. One long winter evening he came up with a game and decided to play it. Given a sequence a consisting of n integers. The player can…

A. Boredom time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Alex doesn't like boredom. That's why whenever he gets bored, he comes up with games. One long winter evening he came up with a ga…