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  1. #include <bits/stdc++.h>
  2. #include <ext/numeric>
  3. using namespace std;
  4. using namespace __gnu_cxx;
  5.  
  6. #define sz(x) (int)x.size()
  7.  
  8. int n,m;
  9. char arr[1010][1010];
  10. int vis[1010][1010];
  11. int num[1010][1010];
  12. int visId;
  13. int cnt[1010];
  14. int dx[4]={1,-1,0,0};
  15. int dy[4]={0,0,1,-1};
  16.  
  17. void dfs(int r,int c){
  18.     if(r<0||c<0||r>=n||c>=m)return;
  19.     if(vis[r][c]||arr[r][c]=='*')return;
  20.     vis[r][c]=1;
  21.     num[r][c]=visId;
  22.     cnt[visId]++;
  23.     for(int i=0;i<4;i++)
  24.         dfs(r+dx[i],c+dy[i]);
  25.     return;
  26. }
  27.  
  28. int main() {
  29. #ifndef ONLINE_JUDGE
  30.     freopen("input.txt", "rt", stdin);
  31.    // freopen("output.txt", "wt", stdout);
  32. #endif
  33.     scanf("%d %d",&n,&m);
  34.     for(int i=0;i<n;i++)
  35.         for(int j=0;j<m;j++)
  36.             scanf(" %c",&arr[i][j]);
  37.     for(int i=0;i<n;i++)
  38.         for(int j=0;j<m;j++){
  39.             if(vis[i][j]||arr[i][j]=='*')continue;
  40.             visId++;
  41.             dfs(i,j);
  42.         }
  43.  
  44.     for(int i=0;i<n;i++){
  45.         for(int j=0;j<m;j++){
  46.             if(arr[i][j]=='.'){
  47.                 printf(".");
  48.                 continue;
  49.             }
  50.             set<int> st;
  51.             if(i>0&&arr[i-1][j]=='.')st.insert(num[i-1][j]);
  52.             if(i<n-1&&arr[i+1][j]=='.')st.insert(num[i+1][j]);
  53.             if(j>0&&arr[i][j-1]=='.')st.insert(num[i][j-1]);
  54.             if(j<m-1&&arr[i][j+1]=='.')st.insert(num[i][j+1]);
  55.             int ans=1;
  56.             for(set<int>::iterator it=st.begin();it!=st.end();it++)
  57.                 ans+=cnt[*it];
  58.             printf("%d",ans%10);
  59.         }
  60.         cout<<"\n";
  61.     }
  62. }
Success #stdin #stdout 0s 12432KB
comments (?)
stdin 
12 1
************
stdout 
1
1
1
1
1
1
1
1
1
1
1
1
https://ideone.com/7DEVQa
language:
C++14 (gcc 8.3)
created:
8 years ago
visibility:
public

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