http://acm.hdu.edu.cn/showproblem.php?pid=3183 A Magic Lamp Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2556    Accepted Submission(s): 999 Problem Description Kiki likes traveling. One day…

#include <stdio.h> #include <string.h> #include <iostream> #include <algorithm> #include <vector> #include <queue> #include <stack> #include <set> #include <map> #include <string> #include <ma…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3183 题解: 方法一:贪心. 在草稿纸上试多几次可以知道,删除数字中从左到右最后一位递增(可以等于)的数字,可以得到最小值,在这个基础下,又继续删除最后一位递增的数字,得到的依然是最小值.这就表明当前这步的贪心不仅是当前最优,而且对于下一步贪心来说也是最优的.所以每次删除最后递增项就可以了. 初期代码(每次循环找最后递增项): Accepted 3183 46MS 1408K 1259 B G++…

Kiki likes traveling. One day she finds a magic lamp, unfortunately the genie in the lamp is not so kind. Kiki must answer a question, and then the genie will realize one of her dreams. The question is: give you an integer, you are allowed to delete…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3183 Problem DescriptionKiki likes traveling. One day she finds a magic lamp, unfortunately the genie in the lamp is not so kind. Kiki must answer a question, and then the genie will realize one of her d…

题目链接:hdu 3183 A Magic Lamp 题目大意:给定一个字符串,然后最多删除K个.使得剩下的组成的数值最小. 解题思路:问题等价与取N-M个数.每次取的时候保证后面能取的个数足够,而且取的数最小,查询最小的操作用RMQ优化. #include <cstdio> #include <cstring> #include <algorithm> using namespace std; const int maxn = 10005; int N, M, d[m…

A Magic Lamp Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2521    Accepted Submission(s): 986 Problem Description Kiki likes traveling. One day she finds a magic lamp, unfortunately the genie…

hdu 3183 A Magic Lamp RMQ ST 坐标最小值 题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=3183 题目大意: 从给定的串中挑出来m个数使得剩余的数字最小,串的序列不能改变 思路: 将问题转化为求在n个数中挑选n-m个数,使之最小.假设最极端的情况,所有最大的数字都在左侧,占据了m个位置,那么我们需要挑选的最小的数字的第一位就是在m+1位上.依次类推,第二位在m+2位上,最后一位也就在原串的最后一位上.反过来,假设最大的数…

http://acm.hdu.edu.cn/showproblem.php?pid=3183 A Magic Lamp Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 2515    Accepted Submission(s): 983 Problem Description Kiki likes traveling. One day…

A Magic Lamp                                                                               Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Problem Description Kiki likes traveling. One day she finds a magic lamp, u…