mirror of
https://git.sb/baoshuo/OI-codes.git
synced 2024-11-27 20:36:28 +00:00
43 lines
796 B
C++
43 lines
796 B
C++
#include <bits/stdc++.h>
|
|
|
|
using namespace std;
|
|
|
|
int n, m, ans;
|
|
char c;
|
|
bool w[105][105];
|
|
|
|
void dfs(int x, int y) {
|
|
if (x < 0 || x >= n || y < 0 || y >= m || !w[x][y]) {
|
|
return;
|
|
}
|
|
w[x][y] = false;
|
|
dfs(x - 1, y - 1);
|
|
dfs(x - 1, y);
|
|
dfs(x - 1, y + 1);
|
|
dfs(x, y - 1);
|
|
dfs(x, y + 1);
|
|
dfs(x + 1, y - 1);
|
|
dfs(x + 1, y);
|
|
dfs(x + 1, y + 1);
|
|
}
|
|
|
|
int main() {
|
|
cin >> n >> m;
|
|
for (int i = 0; i < n; i++) {
|
|
for (int j = 0; j < m; j++) {
|
|
cin >> c;
|
|
w[i][j] = c == 'W' ? true : false;
|
|
}
|
|
}
|
|
for (int i = 0; i < n; i++) {
|
|
for (int j = 0; j < m; j++) {
|
|
if (w[i][j]) {
|
|
dfs(i, j);
|
|
ans++;
|
|
}
|
|
}
|
|
}
|
|
cout << ans << endl;
|
|
return 0;
|
|
}
|