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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. Permutation | S00021 | TL | 1669ms | 49436kb | C++14 | 942b | 2023-03-24 22:59:56 | 2023-03-24 22:59:59 |
Judging History
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