Detonated a bomb (meter garlic off)

 

 

 

 1 #include<iostream>
 2 #include<queue>
 3 #include<algorithm>
 4 using namespace std;
 5 char map[505][505];
 6 int vis[505][505];
 7 struct node{
 8     int x;
 9     int y;
10     node(int x,int y)
11     {
12         this->x=x;
13         this->y=y;
14     }
15 };
16 int n,m;
17 int main()
18 {
19 
20     cin>>n>>m;
21     for(int i=1;i<=n;++i)
22         for(int j=1;j<=m;++j)
23         {
24             cin>>map[i][j];
25         }
26     int count=0;
27     for(int i=1;i<=n;++i)
28         for(int j=1;j<=m;++j)
29         {
30             if(map[i][j]=='1'&&vis[i][j]==0)
31             {
32                 count++;
33                 queue<node> q;
34                 node first = node(i,j);
35                 q.push(first);
36                 vis[i][j]==1;
37                 while(!q.empty())
38                 {
39                     node now = q.front();
40                     int x=now.x;
41                     int y =now.y;
42                     for(int k=1;k<=n;++k)
43                     {
44                         if(map[k][y]=='1'&&vis[k][y]==0)
45                         {
46                            q.push(node(k,y));
47                            vis[k][y]=1;
48                         }
49                     }
50                     for(int k=1;k<=m;++k)
51                     {
52                         if(map[x][k]=='1'&&vis[x][k]==0)
53                         {
54                             q.push(node(x,k));
55                             vis[x][k]=1;
56                         }
57                     }
58                     q.pop();
59                 }
60             }
61         }
62         cout<<count;
63         return 0;
64 }