题意:给定一个 n 个字符串,然后问你怎么给 a-z赋值0-25,使得给定的字符串看成26进制得到的和最大,并且不能出现前导0. 析:一个很恶心的题目,细节有点多,首先是思路,给定个字符一个权值,然后要注意的进位,然后排序,从大到小,给每个字符赋值,如果最后一个出现前导0,就得向前找一个最小的不在首字符的来交换,但不能动了相对的顺序. 代码如下: #pragma comment(linker, "/STACK:1024000000,1024000000") #include <c…

/* HDU 6034 - Balala Power! [ 大数进位,贪心 ] 题意: 给一组字符串(小写英文字母),将上面的字符串考虑成26进制数,每个字母分配一个权值,问这组数字加起来的和最大是多少? 要求每个数字不能有前导0,即每个字符串首位字符不能赋0 分析: 对于每个字符,将每个字符串按位相加,得到这个字符的一个每位上的数量的数组 将其看成一个大数,满26进位,然后排序,从高到低赋值,注意考虑0 */ #include <bits/stdc++.h> using namespace…

Balala Power! Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 2668    Accepted Submission(s): 562 Problem Description Sample Input 1 a 2 aa bb 3 a ba abc Sample Output Case #1: 25 Case #2: 132…

Balala Power! Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others) Total Submission(s): 1411    Accepted Submission(s): 239 Problem Description Talented Mr.Tang has n strings consisting of only lower case characters.…

Balala Power! Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 3555    Accepted Submission(s): 844 Problem Description Talented Mr.Tang has n strings consisting of only lower case characters. H…

题目链接 Problem Description Talented Mr.Tang has n strings consisting of only lower case characters. He wants to charge them with Balala Power (he could change each character ranged from a to z into each number ranged from 0 to 25, but each two differen…

Balala Power![排序/进制思维] Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 6703    Accepted Submission(s): 1680 Problem Description Talented Mr.Tang has n strings consisting of only lower case cha…

Talented Mr.Tang has nn strings consisting of only lower case characters. He wants to charge them with Balala Power (he could change each character ranged from a to z into each number ranged from 0 to 25, but each two different characters should not…

B - Balala Power! 题目链接 http://acm.hdu.edu.cn/showproblem.php?pid=6034 题面描述 Talented Mr.Tang has n strings consisting of only lower case characters. He wants to charge them with Balala Power (he could change each character ranged from a to z into each…

点我看题目 题意 : 有n个人,每个人可以玩m轮,每一轮中每个参与者都有cj张票,第 i 轮的奖金是2的i次方,问你每个人所能赢得最多的奖金的概率是多少. 思路 : 这个题比较坑啊,其实不用去算前几轮的,因为题目中要能越多的奖金越好,所以肯定是最后一轮啊,所以把每个人手中最后一轮的票想加,然后占的那个比例就是要输出的. #include <stdio.h> #include <string.h> #include <iostream> using namespace s…

题目大意:给出的字符串,每个字符建立一种与0-25的对应关系.然后每个字符串看成是一个26进制的数.问能获得的数的总和的最大值.(最后对1e9+7取模). 题目思考:把每个字符的贡献值看做一个26进制数字,贪心排序后,确保没有前导零.写的要规范点,卡时间. #include <stdio.h> #include <string.h> #include <vector> #include<math.h> #include <algorithm> #…

Trouble Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 5388    Accepted Submission(s): 1494 Problem Description Hassan is in trouble. His mathematics teacher has given him a very difficult pro…

Problem Description Talented Mr.Tang has n strings consisting of only lower case characters. He wants to charge them with Balala Power (he could change each character ranged from a to z into each number ranged from 0 to 25, but each two different cha…

Fang Fang Time Limit: 1 Sec Memory Limit: 256 MB 题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5455 Description Fang Fang says she wants to be remembered.I promise her. We define the sequence F of strings.F0 = ‘‘f",F1 = ‘‘ff",F2 = ‘‘cff",F…

Balala Power! Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 3757    Accepted Submission(s): 907 Problem Description Talented Mr.Tang has n strings consisting of only lower case characters. H…

题目传送门:http://acm.hdu.edu.cn/showproblem.php?pid=4004 题目意思是青蛙要过河,现在给你河的宽度,河中石头的个数(青蛙要从石头上跳过河,这些石头都是在垂直于河岸的一条直线上) 还有青蛙能够跳跃的 最多 的次数,还有每个石头离河岸的距离,问的是青蛙一步最少要跳多少米可以过河> 这是一道二分加贪心的题,从0到的河宽度开始二分,二分出一个数然后判断在这样的最小步数(一步跳多少距离)下能否过河 判断的时候要贪心 主要难在思维上,关键是要想到二分上去,能想到…

Talented Mr.Tang has n strings consisting of only lower case characters. He wants to charge them with Balala Power (he could change each character ranged from a to z into each number ranged from 0 to 25, but each two different characters should not b…

1952: [Sdoi2010]城市规划 Time Limit: 10 Sec  Memory Limit: 128 MBSubmit: 73  Solved: 23[Submit][Status][Discuss] Description 小猪iPig来到了一个叫做pigsty的城市里,pigsty是一座专门为小猪所准备的城市,城市里面一共有n个小区给小猪们居住,并且存在许多条无向边连接着许多小区.因为这里是一个和谐的城市,所以小猪iPig准备在这个城市里面度过他的余生.若干年之后小猪iPig…

HDU 4041 Eliminate Witches! (模拟题 ACM ICPC 2011 亚洲北京赛区网络赛题目) Eliminate Witches! Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 863    Accepted Submission(s): 342 Problem Description Kaname Mado…

HDU 4442 Physical Examination(贪心) 题目链接http://acm.split.hdu.edu.cn/showproblem.php?pid=4442 Description WANGPENG is a freshman. He is requested to have a physical examination when entering the university. Now WANGPENG arrives at the hospital. Er-.. Th…

题目链接 F(N) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 4579 Accepted Submission(s): 1610 Problem Description Giving the N, can you tell me the answer of F(N)? Input Each test case contains a si…

Balala Power! Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 3757    Accepted Submission(s): 907 Problem Description Talented Mr.Tang has n strings consisting of only lower case characters. H…

Balala Power! Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 714    Accepted Submission(s): 117 Problem Description Talented Mr.Tang has n strings consisting of only lower case characters. He…

题目传送门 /* 题意:套娃娃,可以套一个单独的娃娃,或者把最后面的娃娃取出,最后使得0-1-2-...-(n-1),问最少要几步 贪心/思维题:娃娃的状态:取出+套上(2),套上(1), 已套上(0),先从1开始找到已经套好的娃娃层数, 其他是2次操作,还要减去k-1个娃娃是只要套上就可以 详细解释:http://blog.csdn.net/firstlucker/article/details/46671251 */ #include <cstdio> #include <algor…

题目传送门 /* 题意:n个头,m个士兵,问能否砍掉n个头 贪心/思维题:两个数组升序排序,用最弱的士兵砍掉当前的头 */ #include <cstdio> #include <cstring> #include <algorithm> using namespace std; ; const int INF = 0x3f3f3f3f; int a[MAXN], b[MAXN]; int main(void) //UVA 11292 The Dragon of Loo…

Balala Power! Time Limit: 4000/2000 MS (Java/Others)    Memory Limit: 131072/131072 K (Java/Others)Total Submission(s): 4124    Accepted Submission(s): 1004 Problem Description Talented Mr.Tang has n strings consisting of only lower case characters.…

1.面试坑题F:\SHJT\JavaWorkspace\JavaSE\workspace\day13ezra\src\cn\itcast\sh\classcode\BTStringLastIndexOfDemo.java /* Day13_SHJavaTraing_4-21-2017 int lastIndexOf(int ch, int fromIndex) 返回指定字符在此字符串中最后一次出现处的索引,从指定的索引处开始进行反向搜索. */ String s="hagag"; in…

关键在排序!!! 数组间的排序会超时,所以需要把一个数组映射成一个数字,就可以了 #include <bits/stdc++.h> using namespace std; typedef long long ll; const int maxn = 1e5 + 5; const ll Mod = 1e9 + 7; int len,ltt[26][maxn]; char s[maxn]; bool apr[26]; ll pow26[maxn]; void init() { int len =…

Number Sequence Time Limit: 10000/5000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 27028    Accepted Submission(s): 11408 Problem Description Given two sequences of numbers : a[1], a[2], ...... , a[N], and b[1],…

http://acm.hdu.edu.cn/showproblem.php?pid=4803 话说C++还卡精度么?  G++  AC  C++ WA 我自己的贪心策略错了 -- 就是尽量下键,然后上键,最后下键补全,可是例子都过不了..... 题解參考http://www.cnblogs.com/xuesu/p/3967704.html http://www.cnblogs.com/Canon-CSU/p/3451784.html http://blog.csdn.net/keshuai199…