显然每一位的限制独立,对于每一位求出仅限制该位下的最大数,然后求最小值即可. 假设当前要求数字$d$的答案: 考虑填数字的过程,可以看作依次考虑一个序列中的每个数,当前缀和$<0$时退出. 设$dp[i][j][k]$表示正在考虑最低的$i$位,高位部分有$j$个$d$,第$i$位能不能填$0$为$k$时,所有可能的数字形成的序列的信息. 这个信息需要维护两个值: $f$:前缀和最小值. $s$:总和. 显然这个信息可以进行合并. 求出答案的位数后,再从高到低逐位确定即可. 时间复杂度$O(\l…

Search GO 说明:输入题号直接进入相应题目,如需搜索含数字的题目,请在关键词前加单引号 Problem ID Title Source AC Submit Y 1000 A+B Problem 10983 18765 Y 1036 [ZJOI2008]树的统计Count 5293 13132 Y 1588 [HNOI2002]营业额统计 5056 13607 1001 [BeiJing2006]狼抓兔子 4526 18386 Y 2002 [Hnoi2010]Bounce 弹飞绵羊 43…

欧几里得算法.可以发现规律,a[2]作为分母,其他作为分子,必定是最好的选择.判断是否为整数即可. #include<cstdio> #include<cstring> #include<iostream> #include<algorithm> using namespace std; #define rep(i,s,t) for(int i=s;i<=t;i++) int read(){ int x=0;char c=getchar(); whil…

题目 1385: [Baltic2000]Division expression Time Limit: 5 Sec  Memory Limit: 64 MB Description 除法表达式有如下的形式: X1/X2/X3.../Xk 其中Xi是正整数且Xi<=1000000000(1<=i<=k,K<=10000) 除法表达式应当按照从左到右的顺序求,例如表达式1/2/1/2的值为1/4.但可以在表达式中国入括号来改变计算顺序,例如(1/2)/(1/2)的值为1.现给出一个除…

About Unixstickers - Unixstickers - stickers on unix, programming, software, development and open source About Unixstickers The widest open stickers collection With more than 40 top brands including operating systems, programming languages and softwa…

We are given N different types of stickers. Each sticker has a lowercase English word on it. You would like to spell out the given target string by cutting individual letters from your collection of stickers and rearranging them. You can use each sti…

We are given N different types of stickers. Each sticker has a lowercase English word on it. You would like to spell out the given targetstring by cutting individual letters from your collection of stickers and rearranging them. You can use each stic…

添加一个target,选择Stickers拓展: 然后就会出现iMessage的文件夹:添加你需要的iMessage图片,这里图片遵循下面的要求: Small: 100 x 100 pt @3x scale (300 x 300 pixel image) Medium: 136 x 136 pt @3x scale (378 x 378 pixel image) Large: 206 x 206 pt @3x scale (618 x 618 pixel image) 也有其他的一些限制, 表情…

We are given N different types of stickers. Each sticker has a lowercase English word on it. You would like to spell out the given target string by cutting individual letters from your collection of stickers and rearranging them. You can use each sti…

We are given N different types of stickers. Each sticker has a lowercase English word on it. You would like to spell out the given target string by cutting individual letters from your collection of stickers and rearranging them. You can use each sti…