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  1. #include<bits/stdc++.h>
  2. using namespace std;
  3. #define MAX 32000
  4.  
  5. typedef struct ll
  6. {
  7.     int horz;
  8.     int vert;
  9. }moves;
  10.  
  11. moves move1[4];
  12.  
  13. int arr[210][210];
  14. int visited[210][210];
  15. int dist[210][210];
  16. int n,m;
  17. char num[210];
  18. queue< pair<int,int> > q;
  19.  
  20.  
  21. void init()
  22. {
  23.     int i,j;
  24.     for(i=0;i<n;i++)
  25.     {
  26.         for(j=0;j<m;j++)
  27.         {
  28.             if(arr[i][j])
  29.             {
  30.                 dist[i][j]=0;
  31.             }
  32.             else
  33.                 dist[i][j]=MAX;
  34.         }
  35.     }
  36. }
  37.  
  38.  
  39. void bfs()
  40. {
  41.     int i,j,k,x,y;
  42.     pair<int,int> p,temp;
  43.     while(!q.empty())
  44.     {
  45.         p=q.front();
  46.         q.pop();
  47.         visited[p.first][p.second]=1;
  48.  
  49.         for(i=0;i<4;i++)
  50.         {
  51.             x=p.first+move1[i].horz;
  52.             y=p.second+move1[i].vert;
  53.  
  54.             if(x>=0&&x<n&&y>=0&&y<m&&!visited[x][y]&&dist[x][y]!=0)
  55.             {
  56.                 visited[x][y]=1;
  57.                 dist[x][y]=dist[p.first][p.second]+1;
  58.                 temp.first=x;
  59.                 temp.second=y;
  60.                 q.push(temp);
  61.             }
  62.         }
  63.     }
  64. }
  65.  
  66. int main()
  67. {
  68.     int test,i,j,k;
  69.     pair<int,int> p;
  70.  
  71.     move1[0].horz=0;
  72.     move1[0].vert=-1;
  73.  
  74.     move1[1].horz=0;
  75.     move1[1].vert=1;
  76.  
  77.     move1[2].horz=-1;
  78.     move1[2].vert=0;
  79.  
  80.     move1[3].horz=1;
  81.     move1[3].vert=0;
  82.  
  83.     cin>>test;
  84.    // scanf("%lld",&test);
  85.     for(i=0;i<test;i++)
  86.     {
  87.  
  88.         cin>>n;
  89.         cin>>m;
  90.         // scanf("%lld",&n);
  91.           //scanf("%lld",&m);
  92.         for(j=0;j<n;j++)
  93.         {
  94.             cin>>num;
  95.              //scanf("%lld",&num);
  96.             for(k=0;k<m;k++)
  97.             {
  98.                 arr[j][k]=num[k]-'0';
  99.                 if(arr[j][k]==1)
  100.                 {
  101.                     p.first=j;
  102.                     p.second=k;
  103.                     q.push(p);
  104.                     visited[j][k]=0;
  105.                     dist[j][k]=0;
  106.                 }
  107.                 else{
  108.                     visited[j][k]=0;
  109.                     dist[j][k]=MAX;
  110.                 }
  111.  
  112.             }
  113.         }
  114.         //cout<<"reached"<<endl;
  115.         bfs();
  116.         for(j=0;j<n;j++)
  117.         {
  118.             for(k=0;k<m;k++)
  119.             {
  120.                 //printf("%lld ",dist[j][k]);
  121.                 cout<<dist[j][k]<<" ";
  122.             }
  123.            //printf("\n");
  124.            cout<<endl;
  125.         }
  126.  
  127.  
  128.     }
  129.     return 0;
  130. }
  131.  
  132.  
  133.  
  134.  
  135.  
  136.  
  137.  
  138.  
  139.  
Success #stdin #stdout 0s 3952KB
comments (?)
stdin
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2
3 4
0001
0011
0110

4 5
00000
01110
01100
01111
stdout
copy 
3 2 1 0 
2 1 0 0 
1 0 0 1 
2 1 1 1 2 
1 0 0 0 1 
1 0 0 1 1 
1 0 0 0 0
https://ideone.com/locW8p
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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