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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#642691#1277. Permutation2020zymAC ✓1176ms52632kbC++141.8kb2024-10-15 15:44:372024-10-15 15:44:38

Judging History

This is the latest submission verdict.

  • [2024-10-15 15:44:38]
  • Judged
  • Verdict: AC
  • Time: 1176ms
  • Memory: 52632kb
  • [2024-10-15 15:44:37]
  • Submitted

answer

#include<bits/stdc++.h>
#define pi pair<long long,int>
#define fi first
#define sec second
#define mk make_pair
using namespace std;
const int MOD=1e9+7;
int n,ans,a[1000010],vis[1000010];
pi zan1[4000010];
pi zan2[4000010];
unordered_map<long long,int>mp;
long long ksm(long long x,long long y){
	long long ans=1;
	while(y){
		if(y&1)ans=ans*x%MOD;
		x=x*x%MOD,y>>=1;
	}
	return ans;
}
inline bool check(const long long zh,const int x){
	if((1ll<<(x-1))&zh)return false;
	int l=x-1,r=x+1;
	while(l>=1&&r<=n){
		if(((zh>>(l-1))&1)^((zh>>(r-1))&1))return false;
		l--,r++;
	}
	return true;
}
void clr(){
	unordered_map<long long,int>VV;
	swap(VV,mp);
}
void upd(int &x,int y){
	x+=y;
	if(x>=MOD)x-=MOD;
}
int main(){
//	freopen("permutation.in","r",stdin);
//	freopen("permutation.out","w",stdout);
	int T;
	scanf("%d",&T);
	while(T--){
		scanf("%d",&n);
		long long zong=1;
		for(int i=1;i<=n;i++)vis[i]=0;
		for(int i=1;i<=n;i++)scanf("%d",&a[i]),vis[a[i]]=1;
		int gg=0;
		for(int i=1;i<=n;i++)
			if(!a[i])gg++,zong=zong*gg%MOD;
		int tot1=0,tot2=0;
		zan1[++tot1]=mk(0,1);
		for(int i=1;i<=n;i++){
			tot2=0;
			for(int jj=1;jj<=tot1;jj++){
				pi j=zan1[jj];
				if(a[i]){
					if(check(j.fi,a[i]))
						zan2[++tot2]=mk(j.fi|(1ll<<(a[i]-1)),j.sec);
				}
				else{
					for(int k=1;k<=n;++k){
						if(vis[k])continue;
						if(check(j.fi,k))zan2[++tot2]=mk(j.fi|(1ll<<(k-1)),j.sec);
					}
				}
			}
			tot1=0;
			for(int jj=1;jj<=tot2;jj++){
				pi j=zan2[jj];
				if(!mp[j.fi])mp[j.fi]=++tot1,zan1[tot1]=mk(j.fi,0);
				upd(zan1[mp[j.fi]].sec,zan2[jj].sec);
			}
			clr();
		}
		int flag=0;
		for(int ii=1;ii<=tot1;ii++){
			pi i=zan1[ii];
			if(i.fi==(1ll<<n)-1){
				printf("%lld\n",(zong-i.sec+MOD)%MOD);
				flag=1;
				break;
			}
		}	
		if(flag==0){
			printf("%lld\n",zong);
		}
	}
	
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 2ms
memory: 9940kb

input:

2
3
0 0 0
7
1 0 3 0 0 6 0

output:

2
21

result:

ok 2 tokens

Test #2:

score: 0
Accepted
time: 0ms
memory: 9996kb

input:

50
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

result:

ok 50 tokens

Test #3:

score: 0
Accepted
time: 0ms
memory: 9940kb

input:

25
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0
2
0 0

output:

0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

result:

ok 25 tokens

Test #4:

score: 0
Accepted
time: 1ms
memory: 10192kb

input:

16
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0
3
0 0 0

output:

2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2

result:

ok 16 tokens

Test #5:

score: 0
Accepted
time: 2ms
memory: 10012kb

input:

5
10
0 0 0 0 0 0 0 0 0 0
10
0 0 0 0 0 0 0 0 0 0
10
0 0 0 0 0 0 0 0 0 0
10
0 0 0 0 0 0 0 0 0 0
10
0 0 0 0 0 0 0 0 0 0

output:

3627734
3627734
3627734
3627734
3627734

result:

ok 5 tokens

Test #6:

score: 0
Accepted
time: 1ms
memory: 9968kb

input:

4
11
0 10 11 6 1 0 8 0 0 3 5
11
0 0 0 10 8 5 4 1 0 2 9
11
0 4 0 3 11 0 0 0 7 8 1
11
0 8 0 3 9 0 0 0 7 4 0

output:

24
24
120
720

result:

ok 4 tokens

Test #7:

score: 0
Accepted
time: 1ms
memory: 10188kb

input:

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

output:

720
24
5040
6

result:

ok 4 tokens

Test #8:

score: 0
Accepted
time: 0ms
memory: 10192kb

input:

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

output:

5040
40320
40320

result:

ok 3 tokens

Test #9:

score: 0
Accepted
time: 0ms
memory: 9904kb

input:

3
14
0 12 10 9 0 0 11 0 0 1 6 4 8 13
14
0 0 8 0 0 9 14 3 0 0 6 2 0 0
14
13 0 8 0 0 0 0 0 14 7 4 6 0 3

output:

120
40320
5040

result:

ok 3 tokens

Test #10:

score: 0
Accepted
time: 1ms
memory: 9936kb

input:

3
15
8 7 12 14 6 0 0 9 4 0 1 0 0 0 2
15
5 0 0 9 0 7 15 0 13 4 11 0 0 0 2
15
0 0 0 2 0 0 7 0 0 8 0 13 14 10 3

output:

720
5040
40320

result:

ok 3 tokens

Test #11:

score: 0
Accepted
time: 5ms
memory: 10020kb

input:

2
20
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
20
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

143388927
143388927

result:

ok 2 tokens

Test #12:

score: 0
Accepted
time: 2ms
memory: 9996kb

input:

1
30
21 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

586750519

result:

ok "586750519"

Test #13:

score: 0
Accepted
time: 0ms
memory: 10764kb

input:

1
40
0 0 0 0 23 26 0 0 0 0 0 0 32 20 33 0 0 0 0 0 0 0 0 0 0 0 0 0 36 0 0 0 0 0 0 0 0 0 0 0

output:

943272305

result:

ok "943272305"

Test #14:

score: 0
Accepted
time: 49ms
memory: 14836kb

input:

1
41
0 0 0 0 0 0 0 0 0 14 38 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 15 0 0 35 9 0 0

output:

523095984

result:

ok "523095984"

Test #15:

score: 0
Accepted
time: 40ms
memory: 13640kb

input:

1
42
0 0 0 0 0 0 0 0 0 0 0 0 4 22 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 38 0 0 0 1 0

output:

472948359

result:

ok "472948359"

Test #16:

score: 0
Accepted
time: 2ms
memory: 10228kb

input:

5
10
0 0 7 0 0 0 0 0 0 3
10
0 5 0 0 0 0 0 9 0 0
10
1 6 0 0 0 0 0 5 0 0
10
0 0 4 0 0 0 3 0 1 9
10
0 0 0 0 0 0 0 6 0 0

output:

40320
40320
5040
718
362648

result:

ok 5 tokens

Test #17:

score: 0
Accepted
time: 1ms
memory: 9968kb

input:

5
9
0 6 0 0 0 0 0 0 0
9
6 0 0 0 3 0 0 7 0
9
8 0 0 0 0 0 7 3 4
9
0 0 0 0 0 0 0 0 0
9
0 0 0 0 0 0 8 2 0

output:

40270
720
120
362384
4996

result:

ok 5 tokens

Test #18:

score: 0
Accepted
time: 284ms
memory: 22768kb

input:

1
42
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

94131117

result:

ok "94131117"

Test #19:

score: 0
Accepted
time: 206ms
memory: 20372kb

input:

1
40
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

614960773

result:

ok "614960773"

Test #20:

score: 0
Accepted
time: 70ms
memory: 13228kb

input:

1
35
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

478043548

result:

ok "478043548"

Test #21:

score: 0
Accepted
time: 23ms
memory: 10752kb

input:

1
30
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

343955582

result:

ok "343955582"

Test #22:

score: 0
Accepted
time: 10ms
memory: 10356kb

input:

1
25
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

242322220

result:

ok "242322220"

Test #23:

score: 0
Accepted
time: 3ms
memory: 10364kb

input:

1
20
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

143388927

result:

ok "143388927"

Test #24:

score: 0
Accepted
time: 1ms
memory: 10220kb

input:

5
10
0 0 0 2 0 9 0 5 0 0
10
0 1 0 3 7 0 0 0 0 0
10
0 0 10 8 0 0 0 9 0 7
10
0 7 1 9 0 0 0 0 0 0
10
0 4 0 0 10 0 0 0 9 0

output:

5028
5000
719
5018
5034

result:

ok 5 tokens

Test #25:

score: 0
Accepted
time: 1ms
memory: 9996kb

input:

5
10
5 1 9 7 3 0 4 10 2 6
10
5 9 1 3 7 6 2 0 4 8
10
6 2 10 4 8 1 9 5 3 0
10
0 10 6 4 8 5 9 1 7 3
10
8 4 10 2 6 5 9 1 0 3

output:

0
0
0
0
0

result:

ok 5 tokens

Test #26:

score: 0
Accepted
time: 1ms
memory: 9964kb

input:

5
10
0 3 0 0 5 10 2 6 4 8
10
5 1 0 3 7 0 4 2 10 6
10
0 3 9 1 5 6 0 10 0 4
10
0 3 5 9 1 6 10 0 8 4
10
5 1 9 7 3 0 4 6 2 0

output:

4
1
5
1
1

result:

ok 5 tokens

Test #27:

score: 0
Accepted
time: 1ms
memory: 9972kb

input:

1
42
29 13 21 37 5 17 33 1 0 0 41 11 27 35 3 19 31 15 23 39 7 12 28 4 36 20 24 0 0 32 16 2 34 18 26 10 42 0 30 6 38 22

output:

118

result:

ok "118"

Test #28:

score: 0
Accepted
time: 1ms
memory: 9876kb

input:

1
42
37 5 21 13 29 17 1 33 25 9 41 3 35 0 0 27 23 0 7 31 15 32 16 8 40 24 0 0 20 28 0 30 0 0 38 22 10 0 0 0 0 18

output:

479001592

result:

ok "479001592"

Test #29:

score: 0
Accepted
time: 1ms
memory: 10192kb

input:

1
42
0 29 0 0 21 33 1 17 41 9 0 15 31 0 7 23 0 0 0 0 35 20 4 36 28 12 32 0 0 40 24 26 10 0 18 34 0 0 38 6 0 0

output:

789741538

result:

ok "789741538"

Test #30:

score: 0
Accepted
time: 0ms
memory: 10020kb

input:

1
42
0 0 25 0 1 33 0 0 0 29 0 0 0 35 0 0 7 39 0 31 0 0 42 0 0 0 2 0 38 22 14 0 0 0 0 0 28 24 0 0 0 0

output:

394131909

result:

ok "394131909"

Test #31:

score: 0
Accepted
time: 1176ms
memory: 52632kb

input:

1
50
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

333255637

result:

ok "333255637"

Test #32:

score: 0
Accepted
time: 1085ms
memory: 51792kb

input:

1
49
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

22735711

result:

ok "22735711"

Test #33:

score: 0
Accepted
time: 849ms
memory: 41388kb

input:

1
48
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

output:

15964537

result:

ok "15964537"

Test #34:

score: 0
Accepted
time: 0ms
memory: 10192kb

input:

1
49
45 0 29 21 37 5 17 49 33 1 9 0 0 7 0 0 0 47 0 27 43 0 19 3 35 22 6 38 30 0 0 18 0 0 26 0 0 0 0 8 0 0 32 44 0 28 36 4 0

output:

146325999

result:

ok "146325999"

Test #35:

score: 0
Accepted
time: 1ms
memory: 9980kb

input:

1
49
0 0 0 45 13 29 0 0 25 49 17 0 0 11 43 27 19 0 0 23 0 39 15 47 31 0 48 16 8 40 0 0 0 0 36 0 0 0 0 0 30 0 46 0 42 10 0 34 0

output:

657627892

result:

ok "657627892"

Test #36:

score: 0
Accepted
time: 12ms
memory: 11152kb

input:

1
49
0 0 0 0 0 0 11 47 0 0 0 44 0 0 0 0 0 0 0 49 14 0 0 0 0 0 0 0 0 36 0 0 0 27 0 0 0 0 0 26 43 1 0 0 41 0 0 0 0

output:

472948359

result:

ok "472948359"

Test #37:

score: 0
Accepted
time: 732ms
memory: 37732kb

input:

1
49
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 37 0 30 0 0 33

output:

741412713

result:

ok "741412713"

Test #38:

score: 0
Accepted
time: 1ms
memory: 9936kb

input:

1
50
12 0 28 20 4 36 8 0 24 16 0 32 0 0 0 30 46 14 50 18 0 2 0 42 10 41 0 0 49 0 1 33 0 37 21 0 0 29 11 43 27 0 0 0 0 0 0 0 7 0

output:

602640125

result:

ok "602640125"

Test #39:

score: 0
Accepted
time: 1ms
memory: 10192kb

input:

1
50
19 35 3 0 43 0 0 0 39 15 0 0 0 0 9 0 1 0 0 21 5 37 29 13 0 34 0 50 18 0 10 42 6 0 22 30 0 0 0 0 0 48 16 32 28 12 44 20 0 36

output:

72847122

result:

ok "72847122"

Test #40:

score: 0
Accepted
time: 34ms
memory: 17444kb

input:

1
50
0 0 0 0 0 0 33 44 0 14 0 0 0 0 0 0 31 0 0 0 0 32 0 0 0 0 0 0 0 0 4 0 0 0 0 0 0 0 0 0 0 22 0 0 0 0 46 0 0 19

output:

776829897

result:

ok "776829897"

Test #41:

score: 0
Accepted
time: 13ms
memory: 13868kb

input:

1
50
0 0 0 0 0 28 0 2 0 0 0 0 0 7 0 0 0 0 0 29 0 0 0 0 17 0 0 0 0 0 0 0 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 49 0

output:

954784168

result:

ok "954784168"