QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#263011#7733. Cool, It’s Yesterday Four Times Moreucup-team1134#AC ✓205ms3524kbC++172.9kb2023-11-24 14:10:052023-11-24 14:10:06

Judging History

你现在查看的是最新测评结果

  • [2023-11-24 14:10:06]
  • 评测
  • 测评结果:AC
  • 用时:205ms
  • 内存:3524kb
  • [2023-11-24 14:10:05]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return true; } return false; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return true; } return false; }
#define all(x) (x).begin(),(x).end()
#define fi first
#define se second
#define mp make_pair
#define si(x) int(x.size())
const int mod=998244353,MAX=3005,INF=1<<30;

struct UF{
    int n;
    vector<int> par,size,edge;
    
    void init(int n_){
        n=n_;
        par.assign(n,-1);
        size.assign(n,1);
        edge.assign(n,0);
        
        for(int i=0;i<n;i++){
            par[i]=i;
        }
    }
    
    int root(int a){
        if(par[a]==a) return a;
        else return par[a]=root(par[a]);
    }
    
    void unite(int a,int b){
        edge[root(a)]++;
        if(root(a)!=root(b)){
            size[root(a)]+=size[root(b)];
            edge[root(a)]+=edge[root(b)];
            par[root(b)]=root(a);
        }
    }
    
    bool check(int a,int b){
        return root(a)==root(b);
    }
};

bitset<MAX> alive,def;

int main(){
    
    std::ifstream in("text.txt");
    std::cin.rdbuf(in.rdbuf());
    cin.tie(0);
    ios::sync_with_stdio(false);
    
    int Q;cin>>Q;
    while(Q--){
        int H,W;cin>>H>>W;
        vector<string> S(H);
        for(int i=0;i<H;i++) cin>>S[i];
        
        UF uf;uf.init(H*W);
        for(int i=0;i<H;i++){
            for(int j=0;j<W;j++){
                if(i+1<H){
                    if(S[i][j]=='.'&&S[i+1][j]=='.') uf.unite(i*W+j,(i+1)*W+j);
                }
                if(j+1<W){
                    if(S[i][j]=='.'&&S[i][j+1]=='.') uf.unite(i*W+j,i*W+j+1);
                }
            }
        }
        
        int ans=0;
        
        for(int a=0;a<H;a++){
            for(int b=0;b<W;b++){
                if(S[a][b]=='O') continue;
                
                alive.reset();
                def.reset();
                
                for(int i=0;i<H;i++){
                    for(int j=0;j<W;j++){
                        if(S[i][j]=='.'){
                            alive[i*(3*W)+W+j]=true;
                            def[i*(3*W)+W+j]=true;
                        }
                    }
                }
                
                for(int i=0;i<H;i++){
                    for(int j=0;j<W;j++){
                        if(uf.check(a*W+b,i*W+j)){
                            int mov=(a-i)*(3*W)+(b-j);
                            if(mov>=0) alive&=(def<<mov);
                            else alive&=(def>>(-mov));
                        }
                    }
                }
                
                //cout<<a<<" "<<b<<" "<<alive.count()<<endl;
                if(alive.count()==1) ans++;
            }
        }
        
        cout<<ans<<"\n";
    }
}


这程序好像有点Bug,我给组数据试试?

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 1ms
memory: 3412kb

input:

4
2 5
.OO..
O..O.
1 3
O.O
1 3
.O.
2 3
OOO
OOO

output:

3
1
0
0

result:

ok 4 lines

Test #2:

score: 0
Accepted
time: 1ms
memory: 3440kb

input:

200
2 4
OOO.
OO..
2 3
OOO
.O.
3 3
O.O
OOO
OO.
4 1
.
.
O
O
1 2
.O
1 1
.
2 5
.OO..
.O.O.
2 1
O
O
1 1
O
1 3
.OO
5 1
O
O
.
O
.
5 2
O.
..
O.
.O
..
5 3
...
...
.OO
..O
OOO
3 5
..O.O
.O.O.
.OO.O
5 2
.O
OO
O.
O.
..
2 1
O
O
3 5
.O.OO
O...O
..OO.
1 5
.....
5 1
O
.
O
.
.
5 3
OOO
OO.
.OO
OO.
O.O
2 1
O
.
5 2
O.
...

output:

3
0
0
2
1
1
3
0
0
1
0
7
9
4
4
0
6
5
2
0
1
6
4
5
2
0
0
5
3
3
1
4
1
0
7
5
2
3
7
3
0
6
2
2
2
0
4
6
6
3
3
2
3
5
2
1
0
3
3
4
4
2
2
0
7
6
4
8
5
3
2
5
2
1
2
1
4
0
0
2
5
1
4
6
6
1
6
2
2
3
4
5
2
1
0
1
9
3
4
11
0
3
2
1
0
0
4
3
1
4
3
8
3
0
3
6
2
5
1
3
3
4
0
2
11
2
2
4
0
4
4
6
2
1
2
3
0
5
0
16
4
3
2
6
0
8
3
3
1...

result:

ok 200 lines

Test #3:

score: 0
Accepted
time: 3ms
memory: 3396kb

input:

50
10 9
OOOO.O...
O...O.OOO
.....O...
..OO..O.O
...O..O.O
..OOO..O.
..OOO...O
.OO.O..OO
.O.O.OO..
.O..O.O.O
10 10
.O.OOO.OO.
...OOOOOOO
...O.O..O.
.O.O..O...
.O.O.OO..O
..OO.O..OO
O....O..OO
OO...OOOOO
OO.OO.O..O
.O.O.OOOOO
10 8
O..OOO.O
O.OOOO..
O..OO.OO
OO..OO..
.OOO..O.
.OO.OO.O
OOO..OO.
..O..OO....

output:

31
40
13
25
40
37
27
29
20
26
25
29
21
29
21
31
32
31
33
34
25
31
18
25
41
28
20
45
20
29
18
21
27
28
35
13
20
17
32
29
28
23
23
23
24
18
28
17
35
24

result:

ok 50 lines

Test #4:

score: 0
Accepted
time: 10ms
memory: 3444kb

input:

5
1 1000
....O..OO..O..O..OO...OOO.OOOO.O...O....OOOOO.....OO..OOOO.O..O....OOOO..OO..OOOO......O.O.O..O..OO.OO.OO.O....O.O.O.O.O.OO..O.O.OO..O..OO..O.OOO...O...O.O.O..O....O.OO...O..O...O.OOO..OO.O..O.OO.O.O..OOOO..O.OO.O.O....O.OO.......OOOO....O.O.O.O..OOO.O.OO.OOO..O...O.O.O.O.OO.O.OOOO...O.OO.....

output:

7
380
294
373
291

result:

ok 5 lines

Test #5:

score: 0
Accepted
time: 1ms
memory: 3380kb

input:

200
1 1
.
2 5
OOOO.
OOOOO
3 2
O.
O.
OO
3 1
O
.
O
3 2
..
OO
OO
1 5
...OO
3 5
OOOOO
OOOOO
OOO.O
4 3
OOO
OOO
OO.
OO.
1 3
O.O
3 1
O
.
.
1 2
O.
3 3
OOO
O..
...
5 4
O.OO
..OO
O.OO
OOOO
OOOO
2 2
O.
OO
3 2
OO
OO
O.
4 4
OOO.
OO..
OO.O
...O
1 4
.OOO
4 3
O..
OOO
OOO
OOO
4 1
O
.
.
O
3 2
O.
OO
OO
5 3
OO.
OOO
OOO...

output:

1
1
2
1
2
3
1
2
1
2
1
5
4
1
1
7
1
2
2
1
1
6
0
1
1
5
1
1
2
1
3
8
1
2
1
3
2
10
4
1
3
1
2
1
1
1
1
1
2
1
1
2
2
4
3
1
2
7
4
1
4
1
1
1
2
1
2
1
7
1
1
1
1
1
3
1
1
2
4
1
4
1
1
1
1
1
1
1
1
1
3
7
1
1
2
5
1
3
7
1
9
2
9
4
4
0
12
6
4
6
2
0
8
6
3
4
16
5
4
5
2
7
1
0
0
1
4
2
9
0
2
3
7
6
13
7
10
11
4
2
13
5
8
8
0
16
...

result:

ok 200 lines

Test #6:

score: 0
Accepted
time: 4ms
memory: 3508kb

input:

50
7 9
OOOOOOO..
OOOOOOO..
OOO....OO
....OO..O
.O...OOOO
.....OOOO
OO...OOOO
8 8
.OO.O...
.O......
OOO.OOOO
OO..OOOO
..O.OO.O
O...OOOO
O..OOOOO
O..OOOOO
9 8
OO....OO
OO..OOOO
O..OOOOO
..O..OOO
.....O..
.....O..
OOOOOOOO
OOOOOOOO
.OOOOOOO
8 10
.O.OOOOOOO
...OO.OOOO
......OOOO
O..O....OO
O..OOO.O.O
O....

output:

22
23
22
35
33
15
21
23
24
16
29
15
29
40
23
30
6
25
37
23
25
33
19
12
34
43
44
21
51
29
35
67
22
53
33
53
32
46
50
48
42
45
31
46
45
30
48
53
54
43

result:

ok 50 lines

Test #7:

score: 0
Accepted
time: 7ms
memory: 3396kb

input:

5
1 1000
OO.OOO....O..OOOO..OOOOOOOOOOOOOOOOOOOOOOOOOOOO..OOOOOOOOOOO....OOOOOOOOOOOO...OO.OOOOOOOOOOOO.OOOOOOO....OOOOOOO......OOOOOOOOOOOOOOOOOOOOOOOO..OOO.O.OO..OO....OOOOOOOOO.OO.OOOOO.OOOOOOO....OOOOOOOO.OOOOO...OOOOOOOOOOOOOOOO.OOOOOOOOOOOOOOOOO.OOOOOOOOOOOOOOOOOOOOOOOOOOOO..OOOOOOOOOOOOOOOO.....

output:

0
355
363
384
280

result:

ok 5 lines

Test #8:

score: 0
Accepted
time: 25ms
memory: 3512kb

input:

5
1 1000
O.O...O................OOOO........OO..........OOOO....OO...O...OO....O...OO...O.............OOOOOO......................OOO......OO..........O...............O........................OO....................O..........O..........OO.......OOOO.O..OO...OOO....O.................................O...

output:

34
458
503
370
493

result:

ok 5 lines

Test #9:

score: 0
Accepted
time: 205ms
memory: 3392kb

input:

5
1 1000
O......OOO..O..OO.OO..................................................................................................................................................................................................................................................................................

output:

966
963
971
965
963

result:

ok 5 lines

Test #10:

score: 0
Accepted
time: 72ms
memory: 3524kb

input:

5
5 200
........................................................................................................................................................................................................
.....OO...OO.OO.O..O..O.OO.OO.OOO.O.OOO...OO.OO...O.O.OO.O.O...OO..OOO..OOOOOOO.OO.O..O.O.O...

output:

508
502
508
499
506

result:

ok 5 lines

Test #11:

score: 0
Accepted
time: 125ms
memory: 3424kb

input:

5
2 500
.....................................................................................................................................................................O.................................................................................................................................

output:

996
994
992
990
988

result:

ok 5 lines

Test #12:

score: 0
Accepted
time: 114ms
memory: 3460kb

input:

5
2 500
.........................................................................................................................................................................................................................................................O.............................................

output:

997
995
993
991
989

result:

ok 5 lines

Test #13:

score: 0
Accepted
time: 101ms
memory: 3428kb

input:

5
333 3
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
.O.
...

output:

667
667
667
667
667

result:

ok 5 lines

Test #14:

score: 0
Accepted
time: 50ms
memory: 3492kb

input:

5
200 5
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O.
.O.O...

output:

401
401
401
401
401

result:

ok 5 lines

Test #15:

score: 0
Accepted
time: 56ms
memory: 3508kb

input:

5
3 333
.......................................................................................................................................................................................................................................................................................................

output:

333
333
333
333
333

result:

ok 5 lines

Test #16:

score: 0
Accepted
time: 5ms
memory: 3408kb

input:

5
2 500
O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O.O....

output:

0
0
0
0
0

result:

ok 5 lines

Test #17:

score: 0
Accepted
time: 29ms
memory: 3460kb

input:

5
6 160
...O..O......O...O..O......O......O.O.O..O......O......O......O......O......O.....OO.O.O..O...O..O..O...O.OO..OO......O....O.O.....OO......O....O.OO..OO.O......
.O....O......O.O....O......O......O...OO.O......O.O.O..O......O......O......O......O......OO...O.O.OO...O......O......O......OO.......

output:

36
570
743
694
682

result:

ok 5 lines

Test #18:

score: 0
Accepted
time: 117ms
memory: 3456kb

input:

5
2 499
.........................................................................................................................................................................................................................................................O.............................................

output:

994
994
990
990
986

result:

ok 5 lines

Extra Test:

score: 0
Extra Test Passed