Submission

Score: 0

User: mocngaijakraila

Problemset: fireball

Language: cpp

Time: 0.001 second

Submitted On: 2026-06-28 16:12:32

#include<bits/stdc++.h>
using namespace std;
int N, M, Q, i, j, s = 0;
const int c = 1e4 + 1; 
int arr[c][c];
int dx[5] = {0, 1, 0, -1, 0};
int dy[5] = {0, 0, -1, 0, 1};

int main() {
    cin.tie(0)->sync_with_stdio(0);
    cin >> N >> M >> Q;
    
    for(int i = 0; i <= M + 1; i++) {
        for(int j = 0; j <= N + 1; j++) {
            if(i == 0 || j == 0 || i == M + 1 || j == N + 1) arr[i][j] = 0;
            else {
                cin >> arr[i][j];
                if(arr[i][j] == 1) s++;
            }
        }
    }


    while(Q--) {
        cin >> j >> i;
        
        if(arr[i][j] == 1) {

            // cout << arr[i][j] << '\n';

            for(int k = 0; k < 5; k++) {

            
                // cout << arr[i + dy[k]][j + dx[k]] << ' ';

                if(arr[i + dy[k]][j + dx[k]] == 1) {
                    arr[i + dy[k]][j + dx[k]] = 0;
                    
                    s--;
                }
            }
            // cout << '\n';
        }
        cout << s << '\n';
    }

    



    return 0;
}