与样例输出一样，但是全RE、WA，0pts求调

#include<bits/stdc++.h>

using namespace std;

int main () {
	char a[100][100];
	int r,c,k,ans = 0;
	cin >> r >> c >> k;
	for (int i = 1; i <= r; i++) {
		for (int j = 1; j <= c; j++) {
			cin >> a[i][j];
		}
	}
	for (int i = 1; i <= r; i++) {
		for (int j = 1; j <= c; j++) {
			if (a[i][j] == '.' && a[i][j+1] == '.') 
				ans++;
		}
	}
	for (int i = 1; i <= r; i++) {
		for (int j = 1; j <= c; j++) {
			if (a[i][j] == '.' && a[i+1][j] == '.') 
				ans++;
		}
	}
	cout << ans;
	return 0;
}