Entropy Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 3648    Accepted Submission(s): 1451 Problem Description An entropy encoder is a data encoding method that achieves lossless data compress…

题目链接:http://poj.org/problem?id=1521 Entropy Time Limit: 1000MS    Memory Limit: 10000K Description An entropy encoder is a data encoding method that achieves lossless data compression by encoding a message with "wasted" or "extra" info…

传送门: http://acm.hdu.edu.cn/showproblem.php?pid=1053 Entropy Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7233    Accepted Submission(s): 3047 Problem Description An entropy encoder is a data…

// 两个队列+k叉哈夫曼树 HDU 5884 // camp题解: // 题意:nn个有序序列的归并排序.每次可以选择不超过kk个序列进行合并,合并代价为这些序列的长度和.总的合并代价不能超过TT, 问kk最小是多少. // . // 题解:首先二分一下这个kk.然后在给定kk的情况下,这个代价其实就是kk叉的哈夫曼树问题.因此直接套用哈夫曼树的堆做法即可.复杂度O(nlog^2n) // ​,这样优化一下读入是可以卡过去的. // 然后主代码手表示,利用合并的单调性,可以去掉优先队列得到O(…

Safe Or Unsafe Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1332    Accepted Submission(s): 524 Problem Description Javac++ 一天在看计算机的书籍的时候,看到了一个有趣的东西!每一串字符都可以被编码成一些数字来储存信息,但是不同的编码方式得到的储存空间是不一样…

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题意:n 个有序序列的归并排序.每次可以选择不超过 k 个序列进行合并,合并代价为这些序列的长度和.总的合并代价不能超过T, 问 k最小是多少. 析:首先二分一下这个 k .然后在给定 k 的情况下,这个代价其实就是 k 叉的哈夫曼树问题.然后用两个队列维护一下就好. 代码如下: #pragma comment(linker, "/STACK:1024000000,1024000000") #include <cstdio> #include <string>…

#include<stdio.h> #include<string.h> #define N  100 #define INF  2000000000  int b[N]; char s[100001]; struct nodee{    int parent,lson,rson,visit,weight; }a[N]; int main() {          int t,n,m,count,i,j,max1,max2,total,sum; scanf("%d&quo…

Sort Time Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=5884 Problem Description Recently, Bob has just learnt a naive sorting algorithm: merge sort. Now, Bob receives a tas…

Description An entropy encoder is a data encoding method that achieves lossless data compression by encoding a message with "wasted" or "extra" information removed. In other words, entropy encoding removes information that was not nece…