#include<iostream>
#include<vector>
#include<utility>
#include<queue>
using namespace std;
int t[3000][3000];
vector<pair<int,int> > Q;
bool moge[3000][3000];
int ile_o_sumie[6000];
queue<pair<int,int> > kolejka;
void usun(int x,int y)
{
kolejka.push({x,y});
moge[x][y]=0;
while(!kolejka.empty())
{
pair<int,int> para=kolejka.front();
kolejka.pop();
x=para.first;
y=para.second;
ile_o_sumie[x+y]--;
if(moge[x][y-1]==1 && moge[x+1][y-1]==0)
{
moge[x][y-1]=0;
kolejka.push({x,y-1});
}
if(moge[x-1][y]==1 && moge[x-1][y+1]==0)
{
moge[x-1][y]=0;
kolejka.push({x-1,y});
}
if(moge[x][y+1]==1 && moge[x-1][y+1]==0)
{
moge[x][y+1]=0;
kolejka.push({x,y+1});
}
if(moge[x+1][y]==1 && moge[x+1][y-1]==0)
{
moge[x+1][y]=0;
kolejka.push({x+1,y});
}
}
}
int main()
{
cin.tie(0);
cout.tie(0);
ios_base::sync_with_stdio(0);
int n,m,x,y,zap;
cin>>n>>m;
for(int i=1;i<=n;i++)
for(int j=1;j<=m;j++)
{
cin>>t[i][j];
if(t[i][j]==1)
Q.push_back({i,j});
}
for(int i=1;i<=n;i++)
for(int j=1;j<=m;j++)
{
moge[i][j]=1;
ile_o_sumie[i+j]++;
}
for(int i=0;i<Q.size();i++)
{
if(moge[Q[i].first][Q[i].second]==0)
{
continue;
}
usun(Q[i].first,Q[i].second);
}
cin>>zap;
while(zap--)
{
cin>>x>>y;
if(moge[x][y]==0)
{
cout<<"1\n";
continue;
}
if(ile_o_sumie[x+y]==1)
{
cout<<"0\n";
continue;
}
usun(x,y);
cout<<"1\n";
}
return 0;
}
Compilation message
furniture.cpp: In function 'int main()':
furniture.cpp:64:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
64 | for(int i=0;i<Q.size();i++)
| ~^~~~~~~~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
896 KB |
Output is correct |
2 |
Correct |
2 ms |
980 KB |
Output is correct |
3 |
Correct |
2 ms |
980 KB |
Output is correct |
4 |
Correct |
3 ms |
1108 KB |
Output is correct |
5 |
Correct |
3 ms |
1108 KB |
Output is correct |
6 |
Correct |
3 ms |
1108 KB |
Output is correct |
7 |
Correct |
3 ms |
1108 KB |
Output is correct |
8 |
Correct |
4 ms |
1108 KB |
Output is correct |
9 |
Correct |
3 ms |
1108 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
896 KB |
Output is correct |
2 |
Correct |
2 ms |
980 KB |
Output is correct |
3 |
Correct |
2 ms |
980 KB |
Output is correct |
4 |
Correct |
3 ms |
1108 KB |
Output is correct |
5 |
Correct |
3 ms |
1108 KB |
Output is correct |
6 |
Correct |
3 ms |
1108 KB |
Output is correct |
7 |
Correct |
3 ms |
1108 KB |
Output is correct |
8 |
Correct |
4 ms |
1108 KB |
Output is correct |
9 |
Correct |
3 ms |
1108 KB |
Output is correct |
10 |
Correct |
12 ms |
1364 KB |
Output is correct |
11 |
Correct |
2 ms |
732 KB |
Output is correct |
12 |
Correct |
122 ms |
16076 KB |
Output is correct |
13 |
Correct |
63 ms |
13088 KB |
Output is correct |
14 |
Correct |
190 ms |
20240 KB |
Output is correct |
15 |
Correct |
204 ms |
19764 KB |
Output is correct |
16 |
Correct |
205 ms |
21116 KB |
Output is correct |
17 |
Correct |
256 ms |
22148 KB |
Output is correct |
18 |
Correct |
214 ms |
21632 KB |
Output is correct |
19 |
Correct |
288 ms |
22720 KB |
Output is correct |
20 |
Correct |
208 ms |
22752 KB |
Output is correct |
21 |
Correct |
246 ms |
22768 KB |
Output is correct |