1 #include<cstdio> 2 const int maxn = 2000; 3 char map[maxn][maxn]; 4 int _x[4] = {-1,0,1,0}; 5 int _y[4] = {0,1,0,-1}; 6  7 int main() 8 { 9     int n,m;10     while(scanf("%d%d",&n,&m)!=EOF)11     {12         for(int i = 0;i < n;++i)13         scanf("%s",map[i]);14         int tot = 0;15         for(int i = 0;i < n;++i)16         for(int j = 0;j < m;++j)17         if(map[i][j] == ‘+‘)18         {19             int flag = 0;20             for(int k = 0;k < 4;++k)21             {22                 int xx = i + _x[k];23                 int yy = j + _y[k];24                 if(xx >= 0 && xx < n && yy >= 0 && yy < m)25                 if(map[xx][yy] == ‘-‘ || map[xx][yy] == ‘?‘)26                 {27                     flag = 1;28                     break;29                 }30             }31             if(flag == 1) tot++;32         }33         printf("%d\n",tot);34     }35     return 0;36 }