题目链接:http://codeforces.com/contest/651/problem/C 思路:结果就是计算同一横坐标.纵坐标上有多少点,再减去可能重复的数量(用map,pair存一下就OK了). #include<bits/stdc++.h> using namespace std; typedef long long ll; typedef pair <int,int> pii; const int N = 2e5 + 5; map <int,int> x,…

Watchmen CodeForces - 650A Watchmen are in a danger and Doctor Manhattan together with his friend Daniel Dreiberg should warn them as soon as possible. There are n watchmen on a plane, the i-th watchman is located at point (xi, yi). They need to arra…

package main import "fmt" //map例题 //寻找最长不含有重复字符的子串 // abcabcbb -> abc //pwwkew ->wke //对每一个字母x: // lastOccurred[x]不存在,或者< start -> 无需操作 // lastOccurred[x] >= start -> 更新start // 更新lastOccurred[x],更新maxLength func lengthOfNonRep…

Watchmen are in a danger and Doctor Manhattan together with his friend Daniel Dreiberg should warn them as soon as possible. There are n watchmen on a plane, the i-th watchman is located at point (xi, yi). They need to arrange a plan, but there are s…

Watchmen 直接上中文 Descriptions: 钟表匠们的好基友马医生和蛋蛋现在要执行拯救表匠们的任务.在平面内一共有n个表匠,第i个表匠的位置为(xi, yi). 他们需要安排一个任务计划,但是确发现了一些问题很难解决.马医生从第i个表匠到第j个表匠所需要的时间为|xi - xj| + |yi - yj|.然而蛋蛋所需要的时间为 要想成功完成任务,必须保证两人从第i个表匠出发,同时到达第j个表匠.现在请你计算最多有多少组表匠的位置满足条件 Input 第一行只有一个数n( 1 ≤ n…

Watchmen are in a danger and Doctor Manhattan together with his friend Daniel Dreiberg should warn them as soon as possible. There are n watchmen on a plane, the i-th watchman is located at point (xi, yi). They need to arrange a plan, but there are s…

Watchmen are in a danger and Doctor Manhattan together with his friend Daniel Dreiberg should warn them as soon as possible. There are n watchmen on a plane, the i-th watchman is located at point (xi, yi). They need to arrange a plan, but there are s…

题意: 求欧几里得距离与曼哈顿距离相等的组数. 分析: 化简后得到xi=xj||yi=yj,即为求x相等 + y相等 - x与y均相等. 代码: #include<iostream> #include<algorithm> using namespace std; const int maxn = 1000000 + 5; typedef pair<long long , long long>pii; pii p[maxn]; bool cmp(pii a, pii b…

Description Watchmen are in a danger and Doctor Manhattan together with his friend Daniel Dreiberg should warn them as soon as possible. There are n watchmen on a plane, the i-th watchman is located at point (xi, yi).They need to arrange a plan, but…

A. Watchmen time limit per test 3 seconds memory limit per test 256 megabytes input standard input output standard output Watchmen are in a danger and Doctor Manhattan together with his friend Daniel Dreiberg should warn them as soon as possible. The…