DFS Deep Search (2)

... Lake Counting(Poj 2386) How many water bottles are in the garden. #include<iostream> #include<cstdio> #include<stack> #include<queue> Using namespace std; Const int maxn=1e2+5; Int a[maxn]; Int n,m; Char field[maxn][maxn]; Void dfs(int x, int y)//current position...


DFS depth-first search entry (1)

... Given a sequence of integers a1, a2, a3...an, select a number from them so that their sum is exactly k. Restriction: 1<=n<=20 -1e8<=ai<=1e8 -1e8<=k<=1e8 Enter: n=4; a={1,2,4,7} k=13 Output: YES (13=2+4+7) #include<iostream> #include<cstdio> #include<...


How to use the thinking tool to make you a master of problem solving

... should be in charge of PV requirements. In the past two days, I shared with my colleagues how to use the thinking tool to make you a master of problem solving, and also share it with CSDN. friend. Dear colleagues, good afternoon! The topic shared with you today is how to make you a...


Can't I get the SSID of WiFi in iOS 12? Don't panic!

... Apple released the official version of Xcode 10 on the official website on the evening of September 17, Beijing. The QiShare team members upgraded at noon on September 18 to adapt the existing projects. During the period, the author found that an app compiled with Xcode 10 could not get...


WebView control properties, styles, methods

... 主properties source: Load a static html code or a url in WebView (you can also include some header options) automaticallyAdjustContentInsets: Set whether to automatically adjust the content. Format: bool contentInset: Sets the size of the content. Format: {top:number,left:number,bottom...


[Luogu P1738] Luogu's folder [Trie]

... 题大意: 给 n n n A directory address, in order to make these folders exist, you need to create several new files. folder? 思维: 一眼 looks like T r i e Trie T r i e . Although violence can be passed. This question is actually T r i e Trie T r i e . It is ok to directly output the number of...


Simple algorithm for large number four operations

... 大数相加 题: Add any two numbers, calculate the result , there is a special case The two numbers may be positive, may be negative the first case, is positive 思维: 1. Reverse the string and convert it to a number 2. Add bit by bit and store in array s[i] 3. Convert the array to hexadecimal ...


C++ basic learning articles _2

... 知识点: 1. Using declarations for namespaces eg: using namespace::name;// By using declarations, you can directly use members in clear spaces. Need to pay attention to: (1) Each name requires a separate using statement (2) The header file should not contain the using statement 2. The...


Gambling (thinking)

... 思题, meaning: A, B have a series of two, each of them has an initial score of 0, each time you can take a number from your own series, as your own score, You can also delete a number in the array of the other party, the two people take turns, A first, to ensure that the player is smart...


[HNOI2012] Mine construction (tarjan request point double)

... 题 Description 煤工场 can be regarded as an undirected graph composed of coal seams connected by tunnels. For the sake of safety, it is hoped that all workers at the coal mining site will have a way out to the rescue exit when an accident occurs at the construction site. Therefore, the mine...