排序. 分别按照$x$,$y$以及对角线排序,统计一下方案数就可以了. #include<bits/stdc++.h> using namespace std; int n; struct X { int x,y; }s[]; bool cmp1(X a, X b) { return a.x<b.x; } bool cmp2(X a, X b) { return a.y<b.y; } bool cmp3(X a, X b) { return a.x+a.y<b.x+b.y;…

#!/usr/bin/env python # coding:utf-8 # Queen Attack # https://hihocoder.com/problemset/problem/1497 # Author: kngxscn # Date: 2017-04-22 """ 时间限制:10000ms 单点时限:1000ms 内存限制:256MB 描述 There are N queens in an infinite chessboard. We say two que…

[题目链接]:http://hihocoder.com/problemset/problem/1497 [题意] 给你n个皇后; 然后问你其中能够互相攻击到的皇后的对数; 皇后的攻击可以穿透; [题解] 对角线的话 就把x+y和x-y占据; 然后把x行和y列占据了; 每次对输入的数据看看对角线和行和列有没有棋子; 有的话就加上相应的数目; 这个用map就能搞定; 可能会爆int [Number Of WA] 0 [完整代码] #include <bits/stdc++.h> using nam…

#1392 : War Chess 时间限制:1000ms 单点时限:1000ms 内存限制:256MB 描述 Rainbow loves to play kinds of War Chess games. There are many famous War Chess games such as "Biography of Cao Cao", "Anecdotes of Wagang Mountain", etc. In this problem, let's c…

题目如下: On an 8x8 chessboard, there can be multiple Black Queens and one White King. Given an array of integer coordinates queens that represents the positions of the Black Queens, and a pair of coordinates king that represent the position of the White…

作者: 负雪明烛 id: fuxuemingzhu 个人博客:http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 遍历 日期 题目地址:https://leetcode.com/problems/queens-that-can-attack-the-king/ 题目描述 On an 8x8 chessboard, there can be multiple Black Queens and one White King. Given an array of int…

hihocoder -1121-二分图的判定 1121 : 二分图一•二分图判定 时间限制:10000ms 单点时限:1000ms 内存限制:256MB 描述 大家好,我是小Hi和小Ho的小伙伴Nettle,从这个星期开始由我来完成我们的Weekly. 新年回家,又到了一年一度大龄剩男剩女的相亲时间.Nettle去姑姑家玩的时候看到了一张姑姑写的相亲情况表,上面都是姑姑介绍相亲的剩男剩女们.每行有2个名字,表示这两个人有一场相亲.由于姑姑年龄比较大了记性不是太好,加上相亲的人很多,所以姑姑一时也…

Hihocoder 太阁最新面经算法竞赛18 source: https://hihocoder.com/contest/hihointerview27/problems 题目1 : Big Plus 描述 Given an NxN 01 matrix, find the biggest plus (+) consisting of 1s in the matrix. size 1 plus size 2 plus size 3 plus size 4 plus 1 1 1 1 111 1 1…

hihoCoder太阁最新面经算法竞赛15 Link: http://hihocoder.com/contest/hihointerview24 题目1 : Boarding Passes 时间限制:10000ms 单点时限:1000ms 内存限制:256MB   描述 Long long ago you took a crazy trip around the world. You can not remember which cities did you start and finish t…

http://hihocoder.com/problemset/problem/1454 调了好长时间,谜之WA... 等我以后学好dp再来看为什么吧,先弃坑(╯‵□′)╯︵┻━┻ #include<cstdio> #include<cstring> #include<algorithm> using namespace std; typedef long long ll; const int pp = 998244353; const int N = 503; int…