CodeForces 598E Chocolate Bar】的更多相关文章

区间DP预处理. dp[i][j][k]表示大小为i*j的巧克力块,切出k块的最小代价. #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> using namespace std; ; ; long long dp[maxn][maxn][maxn]; int n,m,k; void f() { ;i<=;i++) { ;j<=;j++) { ;k<…
Chocolate Bar 题意: 有一个n*m(1<= n,m<=30)的矩形巧克力,每次能横向或者是纵向切,且每次切的花费为所切边长的平方,问你最后得到k个单位巧克力( k <= min(n*m,50) )的最小花费是多少? 思路: 数据规模不大,但是贪心不能得到最优解,很自然想到了dp;里面涉及到行的减少和列的减少,在dp[][]表示中必定要以行数和列数作为dp的含义,但是好像这还不够,如果单单只是一个二维的dp[][]那这个表示的是取了(或者还需)几个单位巧克力呢? ==>…
题目链接: E. Chocolate Bar time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You have a rectangular chocolate bar consisting of n × m single squares. You want to eat exactly k squares, so you ma…
E. Chocolate Bar time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You have a rectangular chocolate bar consisting of n × m single squares. You want to eat exactly k squares, so you may need…
E. Chocolate Bar Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/598/problem/E Description You have a rectangular chocolate bar consisting of n × m single squares. You want to eat exactly k squares, so you may need to break…
题目链接:http://codeforces.com/contest/598/problem/E E. Chocolate Bar time limit per test 2 seconds memory limit per test 256 megabytes input standard input output standard output You have a rectangular chocolate bar consisting of n × m single squares. Y…
Chocolate Bar Time limit : 2sec / Memory limit : 256MB Score : 400 points Problem Statement There is a bar of chocolate with a height of H blocks and a width of W blocks. Snuke is dividing this bar into exactly three pieces. He can only cut the bar a…
D. Chocolate time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Polycarpus likes giving presents to Paraskevi. He has bought two chocolate bars, each of them has the shape of a segmented recta…
题意: 在给定01串中,问能分割成多少个子串?每个子串只有一个1. dp #include<iostream> #include<string> #include<algorithm> #include<cstdlib> #include<cstdio> #include<set> #include<map> #include<vector> #include<cstring> #include&l…
598A - Tricky Sum    20171103$$ans=\frac{n(n+1)}{2} - 2\sum_{k=0}^{\left \lfloor \log_2 n \right \rfloor}{2^{k}}$$ #include<stdlib.h> #include<stdio.h> #include<math.h> #include<cstring> #include<iostream> #include<algorit…
B. Chocolate 题目连接: http://www.codeforces.com/contest/617/problem/D Descriptionww.co Bob loves everything sweet. His favorite chocolate bar consists of pieces, each piece may contain a nut. Bob wants to break the bar of chocolate into multiple pieces…
C. Case of Chocolate Time Limit: 20 Sec Memory Limit: 256 MB 题目连接 http://codeforces.com/contest/555/problem/C Description Andrewid the Android is a galaxy-known detective. Now he does not investigate any case and is eating chocolate out of boredom. A…
主题链接:http://codeforces.com/problemset/problem/449/A ---------------------------------------------------------------------------------------------------------------------------------------------------------- 欢迎光临天资小屋:http://user.qzone.qq.com/593830943…
C. Alice, Bob and Chocolate 题目连接: http://codeforces.com/contest/6/problem/C Description Alice and Bob like games. And now they are ready to start a new game. They have placed n chocolate bars in a line. Alice starts to eat chocolate bars one by one f…
题目链接:http://codeforces.com/contest/450/problem/C 题目意思:给出一个 n * m 大小的chocolate bar,你需要在这个bar上切 k 刀,使得最小的部分面积尽可能大,求出这个被划分后的最小部分面积最大可以为多少.如果这个chocolate bar 不能切成 k 部分,则输出-1.注意,每一刀需要符合3个条件:1.打横切或者打竖切: 2.每一刀只能经过unit square(即1*1的单元bar)的边,也就是说不能把一个单元bar损坏,要完…
C. Jzzhu and Chocolate time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Jzzhu has a big rectangular chocolate bar that consists of n × m unit squares. He wants to cut this bar exactly k time…
题意:给出a1*b1和a2*b2两块巧克力,每次可以将这四个数中的随意一个数乘以1/2或者2/3,前提是要可以被2或者3整除,要求最小的次数让a1*b1=a2*b2,并求出这四个数最后的大小. 做法:非常显然仅仅跟2跟3有关.所以s1=a1*b1,s2=a2*b2,s1/=gcd(s1,s2),s2/=gcd(s1,s2),然后若s1跟s2的质因子都是2跟3,那么就有解.之后暴力乱搞就好了. #include<map> #include<string> #include<cs…
C. Jzzhu and Chocolate time limit per test: 1 seconds memory limit per test: 256 megabytes input: standard input output: standard output Jzzhu has a big rectangular chocolate bar that consists of \(n × m\) unit squares. He wants to cut this bar exact…
今天老师(orz sansirowaltz)让我们做了很久之前的一场Codeforces Round #257 (Div. 1),这里给出A~C的题解,对应DIV2的C~E. A.Jzzhu and Chocolate time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Jzzhu has a big rectangular cho…
http://codeforces.com/contest/490/problem/D 好神的一题,不会做.. 其实就是将所有的质因子找出来,满足: 最终的所有质因子的乘积相等 但是我们只能操作质因子2和3,那么我们就要将任意一边质因子多的先约掉.且先执行3,因为操作是2/3嘛.. 所以筛掉3后再筛2,然后判断面积是否等即可 #include <cstdio> #include <cstring> #include <cmath> #include <string…
B. Chocolate time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Bob loves everything sweet. His favorite chocolate bar consists of pieces, each piece may contain a nut. Bob wants to break the…
A - Jzzhu and Children Time Limit:1000MS     Memory Limit:262144KB     64bit IO Format:%I64d & %I64u Description There are n children in Jzzhu's school. Jzzhu is going to give some candies to them. Let's number all the children from 1 to n. The i-th…
B. Chocolate time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Bob loves everything sweet. His favorite chocolate bar consists of pieces, each piece may contain a nut. Bob wants to break the…
Problem A A. Jzzhu and Children time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output There are n children in Jzzhu's school. Jzzhu is going to give some candies to them. Let's number all the chi…
吐槽一下,这个OJ的题目真的是阅读理解题.代码非常短,就是题目难理解.心累. 传送门:点我 Chocolate bars It is hard to overestimate the role of chocolate bars in traditional programming competitions. Firstly, the nutritional content of chocolate significantly increases the number of brilliant…
Jzzhu and Chocolate time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Jzzhu has a big rectangular chocolate bar that consists of n × m unit squares. He wants to cut this bar exactly k times.…
B. Chocolate time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Bob loves everything sweet. His favorite chocolate bar consists of pieces, each piece may contain a nut. Bob wants to break the…
Problem description Alice and Bob like games. And now they are ready to start a new game. They have placed n chocolate bars in a line. Alice starts to eat chocolate bars one by one from left to right, and Bob — from right to left. For each chocololat…
Sharing Chocolate Chocolate in its many forms is enjoyed by millions of people around the world every day. It is a truly universal candy available in virtually every country around the world. You find that the only thing better than eating chocolate…
 Chocolate Time Limit: 1000MS   Memory Limit: 262144KB   64bit IO Format: %I64d & %I64u Submit Status Description Bob loves everything sweet. His favorite chocolate bar consists of pieces, each piece may contain a nut. Bob wants to break the bar of…