598D

#include <bits/stdc++.h>
#define MAX 1007

using namespace std;

int vis[MAX][MAX], value[MAX][MAX];
pair<int, int> parent[MAX][MAX];
char grid[MAX][MAX];

int _x[4] = {0,1,0,-1};
int _y[4] = {1,0,-1,0};
int n, m, k;

bool check(int x, int y){
    return x > 0 && x <= n && y > 0 && y <= m;
}

pair<int, int> actual;
int dfs(int x, int y){
    vis[x][y] = true;
    parent[x][y] = actual;

    if(grid[x][y] == '*') continue;
    for(int i = 0; i < 4; i++){
        int l = x + _x[i];
        int r = y + _y[i];
        if(check(l, r)){
            if(grid[l][r] == '*') value[no]++;
            else value[no] += dfs(l, r);
        }
    }

    return value[no];
}
int main(){
    scanf("%d %d %d", &n, &m, &k);

    for(int i = 0; i < n; i++){
        for(int j = 0; j < m; j++){
            scanf(" %c", &grid[i][j]);
        }
    }

    while(k--){
        scanf("%d %d", &actual.first, &actual.second);
        if(vis[actual.first][actual.second])
    }
    return 0;
}