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  1. #include <bits/stdc++.h>
  2. #define ll long long
  3. #define int long long
  4. #define f first
  5. #define s second
  6. #define file(a) freopen(a".inp","r",stdin);freopen(a".out","w",stdout);
  7. #define fastoi ios::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
  8. #define maxn 20
  9. using namespace std;
  10. ll n,m;
  11. char a[maxn][maxn];
  12. void loang(ll x,ll y)
  13. {
  14.     for (int i=1;i<=m;i++) a[x][i] = '*';
  15.     for (int j=1;j<=n;j++) a[j][y] = '*';
  16. }
  17. int32_t main()
  18. {
  19.     fastoi;
  20.     //file("test");
  21.     cin >> n >> m;
  22.     for (int i=1;i<=n;i++)
  23.       for (int j=1;j<=m;j++) cin >> a[i][j];
  24.  
  25.     ll ans = 0;
  26.     for (int i=1;i<=n;i++)
  27.     {
  28.       for (int j=1;j<=m;j++)
  29.       {
  30.         if (a[i][j] == '.')
  31.         {
  32.             ans++;
  33.             loang(i,j);
  34.         }
  35.       }
  36.     }
  37.     cout << ans;
  38.     return 0;
  39. }
Success #stdin #stdout 0.01s 5308KB
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https://ideone.com/7o1x21
language:
C++14 (gcc 8.3)
created:
16 days ago
visibility:
public

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