辣鸡会考考完啦哈哈哈哈 题意:一块板分成$L$块,每次给一段连续的块染色或者询问一段有几种颜色,颜色的范围$\leq 30$ 我记得我好像做过一个类似的二维染色的问题-不过那个用树状数组直接过掉了- 这题颜色范围这么小的范围直接想到线段树了吧,直接把一个区间的颜色二进制按位压缩成一个状态,维护区间或 题面还特地说了可能$a>b$-然而我没看到 #include<cstdio> const int N=100005; inline int read() { int s=0,f=1;char…

发现自己越来越傻逼了.一道傻逼题搞了一晚上一直超时,凭啥子就我不能过??? 然后发现cin没关stdio同步... 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…

题目描写叙述: 长度为L个单位的画板,有T种不同的颜料.现要求按序做O个操作,操作分两种: 1."C A B C",即将A到B之间的区域涂上颜色C 2."P A B".查询[A,B]区域内出现的颜色种类 出现操作2时.请输出答案 PS:初始状态下画板颜色为1 一開始没有想那么好,用int整型位移来取代颜色.还是使用了最传统的bool color[来记录.但是不知道错在了哪里. #include<iostream> #include<cstdio&g…

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…

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.…

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…

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…