HDU 2639 第K大背包问题

【HDU 2639 第K大背包问题】的更多相关文章

HDU 2639 第K大背包问题

//状态方程和01背包类似,dp[j][k]表示背包容量为j的第k大背包的值.......... //应当注意的是此时dp[j][1.....k]应当是递减的.................... #include<stdio.h> #include<string.h> #define Max(x,y) (x>y?x:y) #define max_v 1000+10 #define max_k 30+5 #define max_n 100+5 int dp[max_v][m…

hdu 2639 第k大01背包

求每个状态里的k优解,然后合并 /* HDU 2639 求01背包的第k大解. 合并两个有序序列 */ #include<stdio.h> #include<iostream> #include<string.h> #include<algorithm> using namespace std; ; ][];//dp[i][j]表示容量为i,第j大的值 int value[MAXN]; int weight[MAXN]; ]; ]; int N,V,K; v…

HDU 2639 Bone Collector II(01背包变形【第K大最优解】)

Bone Collector II Time Limit: 5000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4739 Accepted Submission(s): 2470 Problem Description The title of this problem is familiar,isn't it?yeah,if you had took pa…

（01背包第k优解） Bone Collector II（hdu 2639）

http://acm.hdu.edu.cn/showproblem.php?pid=2639 Problem Description The title of this problem is familiar,isn't it?yeah,if you had took part in the "Rookie Cup" competition,you must have seem this title.If you haven't seen it before,it does…

HDU 2639（01背包求第K大值）

题目链接: http://acm.hdu.edu.cn/showproblem.php?pid=2639 Bone Collector II Time Limit: 5000/2000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5817 Accepted Submission(s): 3067 Problem Description The title of this…

HDU 2639(01背包第K大)

http://acm.hdu.edu.cn/showproblem.php?pid=2639 http://blog.csdn.net/lulipeng_cpp/article/details/7584981 求第K大的思路是把每个d[v]看成是由d[v]和d[v-cost]+weight两个序列组成的,然后分别记录每个序列的第k大,然后逐项更新. 用个形象的比喻吧:如果我想知道学年最高分,那么,我只要知道每个班级的最高分,然后统计一遍就可以了. 如果我想知道学年前十呢?我必须要知道每个班的前十…