http://acm.hdu.edu.cn/showproblem.php?pid=1084 What Is Your Grade? Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 9580    Accepted Submission(s): 2940 Problem Description “Point, point, life of…

What Is Your Grade? Problem Description “Point, point, life of student!” This is a ballad(歌谣)well known in colleges, and you must care about your score in this exam too. How many points can you get? Now, I told you the rules which are used in this co…

题目在这里:1084 题目描述: “Point, point, life of student!” This is a ballad(歌谣)well known in colleges, and you must care about your score in this exam too. How many points can you get? Now, I told you the rules which are used in this course. There are 5 probl…

Problem Description "Point, point, life of student!" This is a ballad(歌谣)well known in colleges, and you must care about your score in this exam too. How many points can you get? Now, I told you the rules which are used in this course. There are…

Description 这里有一个n*m的矩阵,请你选出其中k个子矩阵,使得这个k个子矩阵分值之和最大.注意:选出的k个子矩阵不能相互重叠. Input 第一行为n,m,k(1≤n≤100,1≤m≤2,1≤k≤10),接下来n行描述矩阵每行中的每个元素的分值(每个元素的分值的绝对值不超过32767). Output 只有一行为k个子矩阵分值之和最大为多少. Sample Input 3 2 2 1 -3 2 3 -2 3 Sample Output 9 思路 看到题目:好难啊..一点思路都没有.…

http://acm.hdu.edu.cn/showproblem.php?pid=1455 http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=243 uva开头描述: 307 - Sticks Time limit: 3.000 seconds hduoj 开头描述: E - Sticks Time Limit:3000MS     Memo…

Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up or down a single slope, but they are not fond of an alternating succession of hills and valleys. FJ…

Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up or down a single slope, but they are not fond of an alternating succession of hills and valleys. FJ…

C. Efim and Strange Grade time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Efim just received his grade for the last test. He studies in a special school and his grade can be equal to any po…

Making the Grade Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 6445   Accepted: 2994 Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up…

15.7 Imagine a simple database storing information for students' grades. Design what this database might look like and provide a SQL query to return a list of the honor roll students (top 10%), sorted by their grade point average. 在一个简化的数据库中我们有三个表,St…

It all started the summer before second grade when our moving van pulled into herneighborhood It all started (in) the summer before second grade when our moving van pulled into herneighborhood 省略了 in  语法也是根据语言习惯自己总结的东西是语言创造语法[小学]阿康(353636164)  18:58:…

Altera的-6.-7.-8速度等级逆向排序,Xilinx速度等级正向排序. 不很严密地说,“序号越低,速度等级越高”这是Altera FPGA的排序方法, “序号越高,速度等级也越高”这是Xilinx FPGA的排序方法. 从那时起,就一直没搞明白speed grade是怎么来的,唯一的概念是:同一款芯片可以有多个速度等级,不同的速度等级代表着不同的性能,不同的性能又导致芯片价格的巨大差异.脑子里总有 一个模模糊糊的推测:FPGA厂家为了提高利润,专门给同一款芯片生产了不同的速度等级. 直到…

http://www.lydsy.com/JudgeOnline/problem.php?id=1084 有一个1A--- 本题没看懂,,不会啊囧..感觉完全设不了状态..看了题解,囧,m<=2,没看到的..默哀吧.然后此题就很好设方程了,m=1时是链,单独考虑,m=2时,考虑几种情况: m==1时: 设d[i][j]表示前i个元素j个矩阵的最大值,有 d[i][j]=max(d[i-1][j], d[k][j-1]+sum[i]-sum[k], 0<=k<i) 很好理解... m==2…

http://acm.hdu.edu.cn/showproblem.php?pid=4712 Hamming Distance Time Limit: 6000/3000 MS (Java/Others)    Memory Limit: 65535/65535 K (Java/Others) Total Submission(s): 1610    Accepted Submission(s): 630 Problem Description (From wikipedia) For bina…

hduoj 4706 Children's Day 2013 ACM/ICPC Asia Regional Online —— Warmup Herding Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others) Total Submission(s): 2005    Accepted Submission(s): 563 Problem Description Little Joh…

Description 题目描述 Ted is a employee of Always Cook Mushroom (ACM). His boss Matt gives him a pack of mushrooms and ask him to grade each mushroom according to its weight. Suppose the weight of a mushroom is w, then it’s grade s is s = 10000 - (100 - w…

Grade Time Limit: 3000/1500 MS (Java/Others)    Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 109    Accepted Submission(s): 63 Problem Description Ted is a employee of Always Cook Mushroom (ACM). His boss Matt gives him a pack of m…

Making the Grade Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 4656   Accepted: 2206 Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up…

解题思路:这题最关键的是要读懂题意,If not all the value are the same but the frequencies of them are the same, there is no mode.这句话是至关重要 的一句.意思是:如果不是所有的值是相同的,并且他们的出现次数是相同的,那么就没有模型.如,1 1 2 2 3 3 ,它们并不是所有的数都是相同的的, 并且1出现2次,2出现2次,3出现2次,所以这组数据是没有模型的,同理,1 2 3 4 5 也是没有模型的,输…

1084: [SCOI2005]最大子矩阵 题目连接: http://www.lydsy.com/JudgeOnline/problem.php?id=1084 Description 这里有一个n*m的矩阵,请你选出其中k个子矩阵,使得这个k个子矩阵分值之和最大.注意:选出的k个子矩阵不能相互重叠. Input 第一行为n,m,k(1≤n≤100,1≤m≤2,1≤k≤10),接下来n行描述矩阵每行中的每个元素的分值(每个元素的分值的绝对值不超过32767). Output 只有一行为k个子矩阵…

hihocoder 1084 : http://hihocoder.com/problemset/problem/1084 北京邀请赛 Just  String http://www.bnuoj.com/v3/problem_show.php?pid=34990 两道题同样的做法,题目基本内容是找到A的字串中和B串长度一样,且不同的字符个数不超过k个的置. 以hihocoder 1084为例, 是求有多少个A的字串的,与B串长度一样,且不同的字符个数不超过k. 分析:预处理hash,然后对每个字…

1. 题目描述由$n \times n, n \in [1, 5]$的正方形由$2 \times n \times (n+1)$根木棍组成,可能已经有些木棍被破坏,求至少还需破坏多少木根,可以使得不存在任何正方形?2. 基本思路这是一道非常有趣的题目,可以使用IDA*解也可以用DLX解.可以试试5 0这组数据比较两者的性能差异.(1) IDA*使用IDA*处理,是因为最后的解的范围一定不是很大,因为数据很小.至多也就60根木棍.首先可以预处理分别对正方形和木棍进行编号,进而预处理破坏每根木棍可以…

题目地址:http://ac.jobdu.com/problem.php?pid=1084 题目描述: 一个整数总可以拆分为2的幂的和,例如: 7=1+2+4 7=1+2+2+2 7=1+1+1+4 7=1+1+1+2+2 7=1+1+1+1+1+2 7=1+1+1+1+1+1+1 总共有六种不同的拆分方式. 再比如:4可以拆分成:4 = 4,4 = 1 + 1 + 1 + 1,4 = 2 + 2,4=1+1+2. 用f(n)表示n的不同拆分的种数,例如f(7)=6. 要求编写程序,读入n(不超…

题目链接:BZOJ - 1084 题目分析 我看的是神犇BLADEVIL的题解. 1)对于 m = 1 的情况, 首先可能不取 Map[i][1],先 f[i][k] = f[i - 1][k];  再考虑取一段新的的情况,用 max(f[j][k - 1] + Sum[i][1] - Sum[j][1])   (0 <= j < i)  更新 f[i][j]: 2) 对于 m = 2 的情况,用 f[i][j][k] 表示左列取到第 i 个,右列取到第 j 个,共 k 个矩形的最优值. 首先…

Description A straight dirt road connects two fields on FJ's farm, but it changes elevation more than FJ would like. His cows do not mind climbing up or down a single slope, but they are not fond of an alternating succession of hills and valleys. FJ…

http://www.lydsy.com/JudgeOnline/problem.php?id=1084 思路:分m=1和m=2操作 #include<algorithm> #include<cstdio> #include<cmath> #include<cstring> #include<iostream> ][],F[][][]; ],sum1[],sum2[],n,m,K; int read(){ ,f=;char ch=getchar(…

What Is Your Grade? Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 9935    Accepted Submission(s): 3041 Problem Description “Point, point, life of student!” This is a ballad(歌谣)well known in c…

题目链接:http://acm.swust.edu.cn/problem/1084/ Time limit(ms): 1000 Memory limit(kb): 65535   Description 小时候,Mzx0821暗恋班上的一个妹子Zzx. 一次班上做活动,班上同学被安排坐成m行n列的矩阵,Mzx0821坐在坐标(x1,y1)的位置,Zzx坐在坐标(x2,y2)的位置.活动过程中,Mzx0821写了一张纸条想给Zzx,但是Mzx0821又不想班上其他人看到他写的内容,于是Mzx082…

最优的做法最后路面的高度一定是原来某一路面的高度. dp(x, t) = min{ dp(x - 1, k) } + | H[x] - h(t) | ( 1 <= k <= t ) 表示前 i 个路面单调不递减, 第 x 个路面修整为原来的第 t 高的高度. 时间复杂度O( n³ ). 令g(x, t) = min{ dp(x, k) } (1 <= k <= t), 则转移O(1), g() 只需在dp过程中O(1)递推即可, 总时间复杂度为O( n² ) 然后单调不递增也跑一遍…