#include<bits/stdc++.h>
#define sherina ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define pb push_back
#define int long long
#define INF 1e18
#define endl '\n'
using namespace std;
int n , m , c[1003][1003] , q , x , y , aa[1003] , bb[1003] , diag[1003];
set < int > st;
bool vis[1003][1003];
bool inside(int a , int b){
return 0 < a && a <= n && 0 < b && b <= m;
}
void rec(int x , int y){
if(!inside(x , y)) return;
diag[x + y]--;
c[x][y] = 1;
vis[x][y] = true;
if(c[x + 1][y - 1]){
//cout << x -1 << " " << y - 1<< endl;
if(!vis[x][y - 1]) rec(x , y - 1);
if(!vis[x + 1][y]) rec(x + 1 , y);
}
if(c[x - 1][y + 1]){
//cout << x -1 << " " << y + 1<< endl;
if(!vis[x - 1][y]) rec(x - 1 , y);
if(!vis[x][y + 1]) rec(x , y + 1);
}
}
signed main(){
cin >> n >> m;
int id = 1;
for(int i = 1 ; i <= n ; i++){
for(int j = 1 ; j <= m ; j++){
cin >> c[i][j];
diag[i + j]++;
}
}
for(int i = 1 ; i <= n ; i++){
c[i][0] = 1;
c[i][m + 1] = 1;
}
for(int i = 1 ; i <= m ; i++){
c[0][i] = 1;
c[n + 1][i] = 1;
}
for(int i = 1 ; i <= n ; i++){
for(int j = 1 ; j <= m ; j++){
if(c[i][j]) rec(i , j);
}
}
cin >> q;
while(q--){
cin >> x >> y;
if(c[x][y]){
cout << "1" << endl;
}
else if(diag[x + y] == 1){
cout << "0" << endl;
}
else{
cout <<"1" << endl;
rec(x , y);
}
}
}
Compilation message
furniture.cpp: In function 'int main()':
furniture.cpp:38:9: warning: unused variable 'id' [-Wunused-variable]
38 | int id = 1;
| ^~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
764 KB |
Output is correct |
2 |
Incorrect |
6 ms |
840 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
2 ms |
764 KB |
Output is correct |
2 |
Incorrect |
6 ms |
840 KB |
Output isn't correct |
3 |
Halted |
0 ms |
0 KB |
- |