Count Color Time Limit: 1000MS Memory Limit: 65536K Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of problems. Here, we get a new problem. There is a very long board with length L cen…
http://acm.hdu.edu.cn/showproblem.php?pid=5023 在片段上着色,有两种操作,如下: 第一种:P a b c 把 a 片段至 b 片段的颜色都变为 c . 第二种:Q a b 询问 a 片段至 b 片段有哪些颜色,把这些颜色按从小到大的编号输出,不要有重复 片段上默认的初始颜色为编号2的颜色. 颜色30种,状压:线段树进行更新和询问 #include <iostream> #include <cstring> #include <cs…
这道题对于我这样的初学者还是有点难度的不过2遍A了还是很开心,下面说说想法-- Count Color Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 40302 Accepted: 12161 Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of p…
Count Color Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 34950 Accepted: 10542 Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of problems. Here, we get a new problem.…
题目背景 阿宝上学了,今天老师拿来了一块很长的涂色板. 题目描述 色板长度为L,L是一个正整数,所以我们可以均匀地将它划分成L块1厘米长的小方格.并从左到右标记为1, 2, ... L. 现在色板上只有一个颜色,老师告诉阿宝在色板上只能做两件事: "C A B C" 指在A到 B 号方格中涂上颜色 C. "P A B" 指老师的提问:A到 B号方格中有几种颜色. 学校的颜料盒中一共有 T 种颜料.为简便起见,我们把他们标记为 1, 2, ... T. 开始时色板上原…
Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of problems. Here, we get a new problem. There is a very long board with length L centimeter, L is a positive integer, so we can evenly d…
Count Color Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 39917 Accepted: 12037 Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of problems. Here, we get a new problem. The…
Count Color Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 33311 Accepted: 10058 Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of problems. Here, we get a new problem. The…
题目地址:http://poj.org/problem?id=2777 Count Color Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 30995 Accepted: 9285 Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of pr…
题目链接: poj 2777 Count Color 题目大意: 给出一块长度为n的板,区间范围[1,n],和m种染料 k次操作,C a b c 把区间[a,b]涂为c色,P a b 查询区间[a,b]有多少种不同颜色 解题思路: 很明显的线段树的区间插入和区间查询,但是如何统计有多少不同的颜色呢? 如果每个结点数组来存储颜色的种类,空间复杂度很高,而且查询很慢 颜色最多只有30种,可以用位运算中的“按位或|” 颜色也用二进制来处理,和存储: 第一种颜色的二进制表示1 第二种颜色…
描述Painting some colored segments on a line, some previously painted segments may be covered by some the subsequent ones.Your task is counting the segments of different colors you can see at last. InputThe first line of each data set contains exactly…
Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 42472 Accepted: 12850 Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of problems. Here, we get a new problem. There is a…
题目:http://www.51nod.com/Challenge/Problem.html#!#problemId=1673 建一个虚树. 一种贪心的想法是把较小的值填到叶子上,这样一个小值限制到的叶子比较少. 但不太会贪心了,所以考虑 DP .只有 20 个叶子,(不是用来暴搜的!)可以状压DP了. dp[ S ]表示选了点集 S 的叶子的方案数.再记一个 ct[ S ] 表示选这个点集的叶子.不影响到其他叶子,最多可以填几个点. dp[ S ]可以枚举最后一个填的是哪个叶子来转移:ct[…
http://acm.hdu.edu.cn/showproblem.php? pid=5372 Segment Game Time Limit: 3000/1500 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 1284 Accepted Submission(s): 375 Problem Description Lillian is a clever girl so…
Count Color Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 38921 Accepted: 11696 Description Chosen Problem Solving and Program design as an optional course, you are required to solve all kinds of problems. Here, we get a new problem.…