QOJ.ac

QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#704895#7900. Gifts from KnowledgehamsterWA 44ms3864kbC++231.2kb2024-11-02 21:27:322024-11-02 21:27:34

Judging History

你现在查看的是最新测评结果

  • [2024-11-02 21:27:34]
  • 评测
  • 测评结果:WA
  • 用时:44ms
  • 内存:3864kb
  • [2024-11-02 21:27:32]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#define int long long
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
const int MOD=1000000007;
void Solve() {
    int r,c;
    cin>>r>>c;
    string mp[r];
    for(int i=0;i<r;i++)cin>>mp[i];
    vector<vector<int>> adj(r+1);
    vector<bool> vis(r+1);
    for(int i=0;i<=(c-1)/2;i++) {
        vector<int> v;
        for(int j=0;j<r;j++) {
            if(mp[j][i]=='1') {
                v.push_back(j);
            }
            if(mp[j][c-i-1]=='1') {
                v.push_back(j);
            }
            if(v.size()>2) {cout<<0<<endl;return;}
        }
        if(v.size()==2&&v[0]!=v[1]) {
            adj[v[0]].emplace_back(v[1]);
            adj[v[1]].emplace_back(v[0]);
        }
    }
    function<void(int u)> dfs=[&](int u){
        vis[u]=1;
        for(auto v:adj[u]) {
            if(!vis[v]) dfs(v);
        }
    };
    int ans=1;
    for(int i=0;i<r;i++) {
        if(!vis[i]) {
            dfs(i);
            ans=ans*2%MOD;
        }
    }
    cout<<ans<<endl;
}

signed main() {
    int Task;
    cin >> Task;
    while (Task--) Solve();
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3556kb

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: 29ms
memory: 3568kb

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: 44ms
memory: 3864kb

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'