HDOJ(HDU).2266 How Many Equations Can You Find (DFS) [从零开始DFS(9)] 点我挑战题目 从零开始DFS HDOJ.1342 Lotto [从零开始DFS(0)] - DFS思想与框架/双重DFS HDOJ.1010 Tempter of the Bone [从零开始DFS(1)] -DFS四向搜索/奇偶剪枝 HDOJ(HDU).1015 Safecracker [从零开始DFS(2)] -DFS四向搜索变种 HDOJ(HDU).1016…

How Many Equations Can You Find Time Limit:1000MS     Memory Limit:32768KB     64bit IO Format:%I64d & %I64u Description Now give you an string which only contains 0, 1 ,2 ,3 ,4 ,5 ,6 ,7 ,8 ,9.You are asked to add the sign ‘+’ or ’-’ between the char…

How Many Equations Can You Find Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 714    Accepted Submission(s): 467 Problem Description Now give you an string which only contains 0, 1 ,2 ,3 ,4 ,5…

Now give you an string which only contains 0, 1 ,2 ,3 ,4 ,5 ,6 ,7 ,8 ,9.You are asked to add the sign ‘+’ or ’-’ between the characters. Just like give you a string “12345”, you can work out a string “123+4-5”. Now give you an integer N, please tell…

Additive equations Description We all understand that an integer set is a collection of distinct integers. Now the question is: given an integer set, can you find all its addtive equations? To explain what an additive equation is, let's look at the f…

http://acm.hdu.edu.cn/showproblem.php?pid=2266 给一个字符串和一个数n,在字符串中间可以插入+或者 -,问有多少种等于n的情况. 要注意任意两个数之间都可以插入也可以不插入,注意枚举完所有情况. #include <cstdio> #include <cstring> ]; int n,l,cnt; void dfs(int k,int sum) { if(k==l) { if(sum==n) cnt++; return; } ; fo…

题目 Source http://acm.hdu.edu.cn/showproblem.php?pid=5937 Description Little Ruins is a studious boy, recently he learned addition operation! He was rewarded some number bricks of 1 to 9 and infinity bricks of addition mark '+' and equal mark '='. Now…

ACCEPT acm作业 http://acm.zju.edu.cn/onlinejudge/showProblem.do?problemId=204 因为老师是在集合那里要我们做这道题.所以我很是天真的就以为要用集合做,结果发现网上都是用数组简单明了地实现了,显得我的代码,特么地超级恶心!!!!!!! 在这里存档一下,别人就不要看了,ZOJ的格式也真是恶心...居然因为这个也弄了好久,应该只有我一个人用这么 没脑的集合方式做吧..真的是哭瞎在厕所里!!! //#include "stdafx.…

Equation Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 92    Accepted Submission(s): 24 Problem Description Little Ruins is a studious boy, recently he learned addition operation! He was rewa…

A very hard Aoshu problem Problem Description Aoshu is very popular among primary school students. It is mathematics, but much harder than ordinary mathematics for primary school students. Teacher Liu is an Aoshu teacher. He just comes out with a pro…