zvirus 2017 2018

#include<iostream>
#include<algorithm>
using namespace std;
# define MAX 1005
int v[MAX][MAX];
int u=0;
int x,y;
void near(int a,int b){
        if(v[a-1][b] == 1 && a > 0){
                v[a-1][b] = 0;
                u--;
                near(a-1,b);
        }
        if(v[a+1][b] == 1){
                v[a+1][b] = 0;
                u--;
                near(a+1,b);
        }
        if(v[a][b-1] == 1 && b > 0){
                v[a][b-1] = 0;
                u--;
                near(a,b-1);
        }
        if(v[a][b+1] == 1){
                v[a][b+1] = 0;
                u--;
                near(a,b+1);
        }
}
int main(){
        cin>>x>>y;
        int z;
        cin>>z;
        for(int i=0;i<x;i++){
                for(int j=0;j<y;j++){
                        cin>>v[i][j];
                        if(v[i][j] == 1){
                                u++;
                        }
                }
        }
        for(int y=0;y<z;y++){
               int a,b;
                cin>>a>>b;
                if(v[a-1][b-1] == 0){
                        cout<<u<<endl;
                }
                else if(v[a-1][b-1] == 1){
                        v[a-1][b-1] = 0;
                        u--;
                        near(a-1,b-1);
                        cout<<u<<endl;
                }
        }
        return 0;
}