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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#90723#1277. PermutationS00021TL 1669ms49436kbC++14942b2023-03-24 22:59:562023-03-24 22:59:59

Judging History

你现在查看的是最新测评结果

  • [2023-08-10 23:21:45]
  • System Update: QOJ starts to keep a history of the judgings of all the submissions.
  • [2023-03-24 22:59:59]
  • 评测
  • 测评结果:TL
  • 用时:1669ms
  • 内存:49436kb
  • [2023-03-24 22:59:56]
  • 提交

answer

#include<bits/stdc++.h>
#define int long long
#define N 55
#define pb push_back
#define fi first
#define se second
#define pii pair<int,int>
#define M 1000000007
using namespace std;
int n,cn,T; unordered_map<int,int>f[N];
void inc(int &x,int y){x+=y; if(x>=M) x-=M;}
bool chk(int S,int i){
	if(S>>i&1) return 0;
	for(int j=1;j<=min(i,n-i-1);j++)
		if((S>>(i-j)&1)^(S>>(i+j)&1)) return 0;
	return 1;
}void slv(){
	scanf("%lld",&n); for(int i=1;i<=n;i++) f[i].clear();
	f[0][0]=1; 
	int cn=0; for(int i=1,va;i<=n;i++){
		scanf("%lld",&va),--va,cn+=(va==-1);
		if(va!=-1){for(auto u:f[i-1]) if(chk(u.fi,va)) inc(f[i][u.fi^(1<<va)],u.se);}
		else{for(int t=0;t<n;t++) for(auto u:f[i-1]) if(chk(u.fi,t)) inc(f[i][u.fi^(1<<t)],u.se);}
	}int ans=0,mul=1; for(auto u:f[n]) inc(ans,u.se);
	for(int i=cn;i;i--) mul=mul*i%M; printf("%lld\n",(mul+M-ans)%M);
}signed main(){
	scanf("%lld",&T);
	while(T--) slv();
	return 0;
}

详细

Test #1:

score: 100
Accepted
time: 1ms
memory: 3628kb

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: 2ms
memory: 3512kb

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: 2ms
memory: 3624kb

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: 2ms
memory: 3624kb

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: 3564kb

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: 2ms
memory: 3632kb

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: 0ms
memory: 3588kb

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: 1ms
memory: 3732kb

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: 2ms
memory: 3592kb

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: 2ms
memory: 3708kb

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: 8ms
memory: 4020kb

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: 3ms
memory: 3992kb

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: 1ms
memory: 3880kb

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: 497ms
memory: 30708kb

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: 1669ms
memory: 49436kb

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: 1ms
memory: 3532kb

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: 2ms
memory: 3580kb

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: -100
Time Limit Exceeded

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:


result: