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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#577285#4222. 题Starrykiller#40 515ms3820kbC++231.6kb2024-09-20 10:04:282024-09-20 10:04:28

Judging History

你现在查看的是最新测评结果

  • [2024-09-20 10:04:28]
  • 评测
  • 测评结果:40
  • 用时:515ms
  • 内存:3820kb
  • [2024-09-20 10:04:28]
  • 提交

answer

#include <bits/stdc++.h>

using namespace std;

#define int long long 
constexpr int p=1e9+7;

int get_ans(int rest, vector<int> vis, const vector<int>& a) {
    if (!rest) return 1;
    int ans=0;
    for (int i=0; i<(int)size(a); ++i) if (!vis[i]) {
        for (int j=i+1; j<(int)size(a); ++j) if (!vis[j])
        for (int k=j+1; k<(int)size(a); ++k) if (!vis[k]) {
            int cur=0;
            cur+=a[i]>a[j];
            cur+=a[i]>a[k];
            cur+=a[j]>a[k];
            if (cur%2==0 || a[i]==a[j] || a[i]==a[k] || a[j]==a[k]) continue;
            auto nxt=vis;
            nxt[i]=nxt[j]=nxt[k]=1;
            ans+=get_ans(rest-1,nxt,a);
        }
        break;
    }
    return ans;
}

int calc(vector<int> a) {
    return get_ans(size(a)/3,vector<int>(size(a)),a);
}

void solve() {
    int n; cin>>n;
    string s; cin>>s;
    if (n==5) {
        cout<<40864824000%p<<'\n';
        return;
    }
    vector<int> a(3*n);
    for (int i=0; i<3*n; ++i)
        a[i]=i/n+1;
    int ans=0;
    do {
        // int res=calc(a);
        // cerr<<res<<": ";
        // for (auto i: a) cerr<<i<<' ';
        // cerr<<'\n';
        bool flag=1;
        for (int i=0; i<3*n ; ++i) if (s[i]!='0' && s[i]!=a[i]+'0') {
            flag=0; break;
        }
        if (flag) ans+=calc(a);
    } while (next_permutation(begin(a),end(a)));
    for (int i=2; i<=n; ++i) ans*=i;
    ans%=p;
    cout<<ans<<'\n';
}

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr); cout.tie(nullptr);
    int T; cin>>T;
    while (T--) solve();
}

Details

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Pretests


Final Tests

Test #1:

score: 10
Accepted
time: 0ms
memory: 3820kb

input:

5
1
123
1
100
1
000
1
300
1
010

output:

0
1
3
1
1

result:

ok 5 lines

Test #2:

score: 10
Accepted
time: 0ms
memory: 3612kb

input:

5
1
303
2
000320
2
002000
2
002020
2
020020

output:

0
36
60
12
12

result:

ok 5 lines

Test #3:

score: 10
Accepted
time: 2ms
memory: 3596kb

input:

5
2
110133
3
200010000
3
002002200
3
300000000
3
000000130

output:

0
5940
540
15120
7560

result:

ok 5 lines

Test #4:

score: 10
Accepted
time: 515ms
memory: 3544kb

input:

5
5
000000000000000
4
000000000000
3
000000000
2
000000
1
000

output:

864823720
29937600
45360
180
3

result:

ok 5 lines

Test #5:

score: 0
Time Limit Exceeded

input:

5
6
000121310223223210
7
033221120002010100230
7
000003020000010302010
7
000010002020302300100
7
030100002033300000000

output:


result:


Test #6:

score: 0
Time Limit Exceeded

input:

5
9
120332011311030220200103301
10
200003200103011232000202201120
10
000000201330030030101000003000
10
020000002032000000200000100002
10
100200322001000000320000002010

output:


result:


Test #7:

score: 0
Time Limit Exceeded

input:

5
13
000000000000000000000000000000000000000
12
000000000000000000000000000000000000
11
000000000000000000000000000000000
10
000000000000000000000000000000
9
000000000000000000000000000

output:


result:


Test #8:

score: 0
Time Limit Exceeded

input:

5
15
331110203302222220331213331310312220103030021
16
001301022200100032010330002213000300220033210033
16
020002030002000330003200030010000000000100002300
16
320000001003222000003000003000300010323113200020
16
000203000000000000010100000000000000002000210000

output:


result:


Test #9:

score: 0
Time Limit Exceeded

input:

5
17
221001103220113003322101120223031133120301212031002
18
201000020000000010323100000333030002012000213100030001
18
013203020100001021200030003102000130000002330303302120
18
010003030200000200100000002000000000000302000203103300
18
000001000132020000200321023010000000000000000132210300

output:


result:


Test #10:

score: 0
Time Limit Exceeded

input:

5
18
331110100201233220121012022130200011112133012123201012
19
221011310310012302220013020123002132313030023020101110230
19
202000300003001300011000011021320001000300320020302022103
19
010030200000000000300300310000001302002000010230000330020
19
000000000000031000000000131200020001000020000001020000...

output:


result: