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  1. #include <bits/stdc++.h>
  2.  
  3. using namespace std;
  4.  
  5. int main()
  6. {
  7.     ios_base::sync_with_stdio(false);cin.tie(NULL);
  8.  
  9.     int m,n;cin>>m>>n;
  10.     bool arr1[m+1][n];
  11.     bool arr2[m][n+1];
  12.  
  13.     for (int i=0;i<=m;i++){
  14.         for (int j=0;j<n;j++) arr1[i][j]=0;
  15.     }for (int i=0;i<m;i++){
  16.         for (int j=0;j<=n;j++) arr2[i][j]=0;
  17.     }
  18.  
  19.     char arr[m][n];
  20.  
  21.     for (int i=0;i<m;i++){
  22.         for (int j=0;j<n;j++){
  23.             cin>>arr[i][j];
  24.             if (arr[i][j]=='x'){
  25.                 arr1[i][j]=1;
  26.                 arr1[i+1][j]=1;
  27.                 arr2[i][j]=1;
  28.                 arr2[i][j+1]=1;
  29.             }
  30.         }
  31.     }
  32.  
  33.     int ans=0;
  34.  
  35.     for (int i=0;i<=m;i++){
  36.         for (int j=0;j<n;j++){
  37.             if (arr1[i][j]){
  38.                 if (i==0||i==n)ans++;
  39.                 else if ((arr[i-1][j]=='x')^(arr[i][j]=='x'))ans++;
  40.             }
  41.         }
  42.     }
  43.  
  44.     for (int i=0;i<m;i++){
  45.         for (int j=0;j<=n;j++){
  46.             if (arr2[i][j]){
  47.                 if (j==0||j==n)ans++;
  48.                 else if ((arr[i][j-1]=='x')^(arr[i][j]=='x'))ans++;
  49.             }
  50.         }
  51.     }
  52.  
  53.     cout<<ans<<endl;
  54.     return 0;
  55. }
Success #stdin #stdout 0.04s 7804KB
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https://ideone.com/sCHajP
language:
C++14 (clang 8.0)
created:
4 years ago
visibility:
secret

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