http://codeforces.com/group/1EzrFFyOc0/contest/711/problem/C https://blog.csdn.net/qq_36368339/article/details/78568585?locationNum=6&fps=1  题解 题意:(真难理解)有n个点,m种颜色,你要给n个点上没有颜色的点染色.每个点i对应染的颜色j有一个颜料消耗,p[i][j]是点i染成j颜色的花费,你必须保证有k段颜色的点,输出最少花费多少颜料. 思路:题意稍微不…

Coloring Trees Problem Description: ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided to be naughty and color the trees in the park. The trees are numbered with integers from 1 to n fr…

C. Coloring Trees 题目连接: http://www.codeforces.com/contest/711/problem/C Description ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided to be naughty and color the trees in the park. The…

C. Coloring Trees   ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided to be naughty and color the trees in the park. The trees are numbered with integers from 1 to n from left to right…

C. Coloring Trees time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided to be…

题目链接 http://codeforces.com/contest/711/problem/C Description ZS the Coder and Chris the Baboon has arrived at Udayland! They walked in the park where n trees grow. They decided to be naughty and color the trees in the park. The trees are numbered wit…

题目:https://codeforces.com/problemset/problem/711/C 题意:给你n,m,k,代表n个数的序列,有m种颜色可以涂,0代表未涂颜色,其他代表已经涂好了,连着一段是相同颜色的是一个连通块,求正好有k个连通块的最小花费 思路:首先每个位置有可能有m中颜色,而且要满足k个,我们我们可以推出所有情况 dp[n][m][k] n代表前n个数 m代表当前涂m色 k代表满足k个了 #include<cstdio> #include<cmath> #in…

题目大意:有n个点,由m种颜料,有些点没有涂色,有些点已经涂色了,告诉你每个点涂m种颜色的价格分别是多少, 让你求将这n个点分成k段最少需要多少钱. 思路:动态规划,我们另dp[ i ][ j ][ k ] 表示到i个点为止,分成j段,最后一段的颜色为k的最少值,然后就能很容易地 写出状态转移方程. #include<bits/stdc++.h> #define ll long long using namespace std; ; const ll inf=0x3f3f3f3f3f3f3f3…

题目链接:http://codeforces.com/contest/981/problem/D 题目大意:给你n本书以及每本书的价值,现在让你把n本书放到k个书架上(只有连续的几本书可以放到一个书架上),每个书架的价值值是书架上每本书的价值和,总的价值每个书架权值按位与的结果,要求输出最大的总价值.解题思路:按位从高到低枚举,每次都判断一下是否符合条件(即判断ans|(1<<i)是否能够取到),如果符合则更新答案.判断过程:设dp[i][j]表示将1~i分为j段是否符合条件,然后枚举区间,状…

题目链接:http://codeforces.com/contest/761/problem/C 题意:给出n行的字符串每一列都从第一个元素开始可以左右移动每一行字符串都是首位相连的. 最后问最少移动几次能够构成一个合理字符串,构成方法每一行取当前位置那个数.只要这个字符串 中有数字,有小写字母,有特殊符号就算合理. 先预处理一下每行到达各种符号所要移动的最小距离,最后设p[i][j][k][l] i=1表示有数字,0表示没有,j,k分别表示字母和特殊符号,l表示取到第l行. 最后p值表示最小要…