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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#621931#7900. Gifts from KnowledgeyldWA 17ms3676kbC++201.9kb2024-10-08 18:28:142024-10-08 18:28:15

Judging History

你现在查看的是最新测评结果

  • [2024-10-08 18:28:15]
  • 评测
  • 测评结果:WA
  • 用时:17ms
  • 内存:3676kb
  • [2024-10-08 18:28:14]
  • 提交

answer

#include<bits/stdc++.h>
#define int long long
#define endl '\n'
using namespace std;
const int mod=1e9+7;
void solve()
{
    int n,m,ans=1;
    cin>>n>>m;
    string s[n+1];
    vector<vector<int>> mp(n+1,vector<int>(m+1));
    for(int i=1;i<=n;i++)
    {
        cin>>s[i];
        s[i]=' '+s[i];
        for(int j=1;j<=m;j++) mp[i][j]=s[i][j]-'0';
    }
    // for(int i=1;i<=n;i++)
    // {
    //     for(int j=1;j<=m;j++) cout<<mp[i][j]<<' ';
    //     cout<<endl;
    // }
    vector<set<int>> line(m+1);
    for(int i=1;i<=m;i++)
    {
        for(int j=1;j<=n;j++)
        {
            if(mp[j][i]) line[i].insert(j),line[m-i+1].insert(j);
        }
    }
    // for(int i=1;i<=m;i++)
    // {
    //     for(auto x:line[i]) cerr<<x<<' ';
    //     cerr<<endl;
    // }
    vector<int> num(m+1);
    for(int i=1;i<=n;i++)
    {
        for(int j=1;j<=m;j++)
        {
            num[j]+=mp[i][j];
            num[m-j+1]+=mp[i][j];
        }
    }
    // for(int i=1;i<=m;i++) cout<<num[i]<<' ';
    // cout<<endl;
    vector<int> fa(n+1);
    for(int i=1;i<=n;i++) fa[i]=i;
    function<int(int)> getfa=[&](int x)
    {
        if(x==fa[x]) return x;
        return fa[x]=getfa(fa[x]);
    };
    for(int i=1;i<=m;i++)
    {
        if(line[i].size()>2) {cout<<0<<endl;return;}
        if(line[i].size()==2)
        {
            if(m==1) ans=0;
            int x=*line[i].begin();
            int y=*(++line[i].begin());
            int temp=num[i]-mp[x][m-i+1],temp2=num[i]-mp[y][m-i+1];
            if(temp>2 || temp2>2) {cout<<0<<endl;return;}
            int fx=getfa(x),fy=getfa(y);
            if(fx==fy) continue;
            fa[fy]=fx;
        }
    }
    for(int i=1;i<=n;i++)
        if(getfa(i)==i) ans=(ans*2)%mod;
    cout<<ans<<endl;
}
signed main()
{
    cin.tie(0)->sync_with_stdio(0);
    int t=1;
    cin>>t;
    while(t--) solve();
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3620kb

input:

3
3 5
01100
10001
00010
2 1
1
1
2 3
001
001

output:

4
0
2

result:

ok 3 number(s): "4 0 2"

Test #2:

score: 0
Accepted
time: 15ms
memory: 3676kb

input:

15613
10 10
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
0000000000
15 8
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000000
1 5
00000
5 9
000000000
000000000
0000...

output:

1024
32768
2
32
32768
128
32
16
16
2
16384
16384
128
128
32768
8192
128
64
16384
2
4
2
4096
16
4096
1024
32768
32768
16384
8
128
2
16
4096
8192
32768
8192
8192
16
16384
16384
256
128
8
256
8
4096
512
2
4
32
32
2
64
512
1024
32768
32768
2
64
16384
16
8192
16
256
16
64
8192
8192
64
1024
2
32768
2
4
51...

result:

ok 15613 numbers

Test #3:

score: -100
Wrong Answer
time: 17ms
memory: 3640kb

input:

15759
9 6
000000
000000
000000
000000
000000
000000
000000
000000
000000
5 15
010000000000000
000000000000000
000000000000000
000100000000000
000100000000000
14 12
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000000000
000000...

output:

512
16
16384
512
1024
4096
32768
4
2
512
512
512
512
8
2
256
16
4096
512
64
16
4096
512
32
32768
8192
32
2048
128
16
4096
64
32768
256
32
16384
8
512
32
2048
8
16
1024
2048
128
64
32
8
512
8
8192
256
8192
32768
2
8
512
512
256
32
2
2048
8192
8
64
8
2
16384
32768
32768
1024
4096
16384
16384
128
256
4...

result:

wrong answer 2380th numbers differ - expected: '0', found: '4'