【图】深度优先算法(DFS)

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#正文之前

好久没弄C++了,上学期颓废了半学期,这学期开学就搞课程设计快疯了。待会要考试CSP,所以弄点代码储备,待会到了考场说不定能省点功夫!

正文

#include <iostream>
#include<vector>
#define Max 1000;

using namespace std;
struct Graph
{
   int  a[10][10];
};


vector<int> path;
bool visited[10];
int deepth=0;

void DFS(Graph tu,int start)
{
    visited[start]=true;
    for(int i=0;i<10;i++)
    {
        if (visited[i]==false && (tu.a)[start][i]<1000)
        {
            visited[i]=true;
            path[deepth]=i;
            ++deepth;
            DFS(tu,i);
        }
    }
}

// 1 4 1 3 1 5 2 5 2 3 4 5 5 6 5 7 
int main()
{
    Graph tu;
    for(auto &s:tu.a)
        for(auto &x:s)
            x=Max;
    int a,b,s;
    path.push_back(0);
    for(auto &x:visited)
        x=false;
    for(int i=0;i<8;++i)
    {
        cin>>a>>b;
        tu.a[a][b]=tu.a[b][a]=1;
        path.push_back(0);
    }
    path[deepth]=1;
    ++deepth;
    DFS(tu,1);
    cout<<"====~ The Path is ~====="<<endl;
    for(auto &s:path)
        if(s!=0)
            cout<<"\""<<s<<"\""<<" --> ";
    cout<<" | Stop ~ "<<endl;
}

Output:

Last login: Sun Mar 18 11:44:22 on ttys000


= * = * = * = * = * = * = * = * = * = * = * = * = * = * 
✧。٩(ˊᗜˋ)و✧* Hello! Welcome 张照博!!开启愉快的一天吧!
= * = * = * = * = * = * = * = * = * = * = * = * = * = * 


HustWolf:~ zhangzhaobo$ /Users/zhangzhaobo/program/C++/DFS ; exit;
1 4 1 3 1 5 2 5 2 3 4 5 5 6 5 7 
====~ The Path is ~=====
"1" --> "3" --> "2" --> "5" --> "4" --> "6" --> "7" -->  | Stop ~ 
logout
Saving session...
...copying shared history...
...saving history...truncating history files...
...completed.

[进程已完成]

正文之后

祝我好运!发誓这次考试后一定苦学!上学期太飘了。