B. Island Puzzle time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A remote island chain contains n islands, labeled 1 through n. Bidirectional bridges connect the islands to form a simple c…

A. Orchestra time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output Paul is at the orchestra. The string section is arranged in an r × c rectangular grid and is filled with violinists with the ex…

B. Island Puzzle time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A remote island chain contains n islands, labeled 1 through n. Bidirectional bridges connect the islands to form a simple c…

A. Island Puzzle time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output A remote island chain contains n islands, labeled 1 through n. Bidirectional bridges connect the islands to form a simple c…

题意: 给定一个靠着坐标轴长为n,宽为m的矩形和 矩形中的一个点A,求在这个矩形内部一个 长宽比为a/b的小矩形,使这个小矩形的长宽尽量大使点A在小矩形内部,并且点A尽量靠近小矩形的中心 CF的思维题确实牛,让点A尽量靠近小矩形的中心其实是比较障眼法的,让你觉得这个问题又需要考虑 小矩形最大又需要考虑点A的问题,然是考虑这样一个问题,小矩形的大小和点A在小矩形内部,两个问题是否矛盾. 这是解决问题的关键,所以这不仅是思维的难度,也是心理的考验,在思考这个问题之初就默认这两个问题是矛盾的, 为之后…

模拟枚举... A - New Year and Buggy Bot(http://codeforces.com/problemset/problem/908/B) 暴力枚举即可,但是直接手动暴力会非常繁琐,所以用到了STL,next_permutation(a,a+4),这个函数便是对a内元素进行全排列. #include<bits/stdc++.h> #define N 100000 #define ll long long using namespace std; ]; ][],s[];…

暴力 A - Orchestra import java.io.*; import java.util.*; public class Main { public static void main(String[] args) { Scanner cin = new Scanner (System.in); int r = cin.nextInt (); int c = cin.nextInt (); int n = cin.nextInt (); int k = cin.nextInt ();…

由于换了台电脑,而我的贪心 & 构造能力依然很拉跨,所以决定再开一个坑( 前传: 贪心/构造/DP 杂题选做 u1s1 我预感还有Ⅲ(欸,这不是我在多项式Ⅱ中说过的原话吗) 24. P5912 [POI2004]JAS 一开始直接莽了个点分治,当我测过了样例美滋滋地一交,发现自己获得了 20 分的好成绩之后,才发现事情有那么亿点点不对劲( 不难发现,题目等价于求高度最小的点分树的高度,直接求有点困难,我们不妨来对其进行一些转化:我们考虑给每个点一个标号,那么问题可以转化为,求使得任意两个标号相同…

B - Hongcow Solves A Puzzle 题目连接: http://codeforces.com/contest/745/problem/B Description Hongcow likes solving puzzles. One day, Hongcow finds two identical puzzle pieces, with the instructions "make a rectangle" next to them. The pieces can be…

C. Rectangle Puzzle Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/281/problem/C Description You are given two rectangles on a plane. The centers of both rectangles are located in the origin of coordinates (meaning the cen…