QOJ.ac
QOJ
ID | Problem | Submitter | Result | Time | Memory | Language | File size | Submit time | Judge time |
---|---|---|---|---|---|---|---|---|---|
#534951 | #6756. 桂花树 | sumi007 | 55 | 440ms | 3836kb | C++14 | 1.6kb | 2024-08-27 17:53:25 | 2024-08-27 17:53:26 |
Judging History
answer
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define lowbit(i) (i&-i)
const int N = 1e5+5,mod = 1e9+7;
int Num,Ti;
int ans,n,m,k,fa[N],f[(1<<11)],g[(1<<11)],p[1<<11];
void gmod(int &x){
if(x>=mod) x -= mod;
}
void solve(){
cin >> n >> m >> k;
for(int i=2;i<=n;i++) cin >> fa[i];
if(!m) {
cout << 1 << "\n";
return ;
}
if(m == 1){
cout << 2*n-1 << '\n';
return ;
}
if(m == 2){
ans = (2*n-1)*(2*n-1)+n-1+2*n+n-1;
if(k) ans = ans+n-1;
ans %= mod;
cout << ans << "\n";
return ;
}
for(int i=0;i<=10;i++) p[1<<i] = i;
for(int s=0;s<(1<<k);s++) f[s] = 0,g[s] = 0;
f[0] = 1;
for(int i=n;i<n+m;i++){
for(int s=0,t;s<(1<<k);s++){
if(!f[s]) continue;
if(s&1){
g[s>>1] += f[s],gmod(g[s>>1]);
}else{
g[s>>1] += 1ll*f[s]*(2*i-1)%mod,gmod(g[s>>1]);
if(k) g[(s>>1)|(1<<(k-1))] += 1ll*f[s]*(i-1)%mod,gmod(g[(s>>1)|(1<<(k-1))]);
t = s;
while(t){
int j = p[lowbit(t)];
t -= lowbit(t);
g[(s^(1<<j))>>1] += f[s],gmod(g[(s^(1<<j))>>1]);
}
}
}
for(int s=0;s<(1<<k);s++) f[s] = g[s],g[s] = 0;
}
cout << f[0] << "\n";
return ;
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0),cout.tie(0);
cin >> Num >> Ti;
while(Ti--) solve();
return 0;
}
Details
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Pretests
Final Tests
Test #1:
score: 0
Wrong Answer
time: 1ms
memory: 3640kb
input:
1 15 4 2 9 1 2 3 4 4 1 1 1 1 4 3 10 1 2 3 4 2 10 1 2 3 2 3 0 1 2 2 8 1 2 4 10 1 3 3 0 1 2 3 2 0 1 1 2 2 0 1 2 4 9 1 4 2 0 1 1 1 2 4 1 1 4 4 8 1 1 1 3 3 0 1 2
output:
66 10132 781 66 105 16 1236 315 35 15 1236 63 1110 11112 315
result:
wrong answer 3rd numbers differ - expected: '787', found: '781'
Test #2:
score: 0
Wrong Answer
time: 0ms
memory: 3644kb
input:
2 15 4 2 0 1 1 1 3 4 8 1 2 2 2 9 1 3 4 0 1 1 4 2 9 1 1 1 3 4 2 1 1 3 3 10 1 1 3 3 0 1 2 3 2 0 1 1 3 2 0 1 1 3 4 2 1 2 2 2 0 1 2 2 0 1 4 4 8 1 1 2 3 2 0 1 2
output:
63 4403 16 3465 66 4271 362 315 35 35 4271 15 15 11112 35
result:
wrong answer 2nd numbers differ - expected: '4553', found: '4403'
Test #3:
score: 5
Accepted
time: 12ms
memory: 3776kb
input:
3 15 25363 0 10 1 2 2 4 5 6 5 7 5 7 7 8 13 11 13 12 17 14 19 20 20 22 23 24 22 26 26 24 28 28 30 32 32 30 34 33 35 34 38 37 41 41 40 40 42 46 45 44 47 49 51 49 51 54 54 56 55 58 57 59 60 62 60 61 64 65 63 65 68 66 70 68 69 74 75 72 76 77 78 77 77 78 79 84 83 83 85 87 89 90 91 90 90 91 93 93 97 95 98...
output:
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
result:
ok 15 numbers
Test #4:
score: 5
Accepted
time: 0ms
memory: 3556kb
input:
4 15 95 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 81 1 0 1 1 3 3 2 4 4 4 7 8 8 11 11 12 15 16 17 18 19 17 19 22 20 22 24 25 27 24 25 26 28 29 32 33 32...
output:
189 161 157 183 179 179 185 165 161 179 191 159 199 177 195
result:
ok 15 numbers
Test #5:
score: 5
Accepted
time: 15ms
memory: 3752kb
input:
5 15 24238 1 9 1 2 2 3 2 3 7 6 6 8 11 8 13 14 14 13 14 15 15 20 17 21 19 24 25 22 23 28 27 29 28 31 32 34 35 32 35 35 39 37 38 42 39 41 43 42 47 47 45 48 49 52 50 52 51 55 53 57 58 58 60 58 60 64 62 66 66 65 65 69 68 68 73 71 72 73 75 78 77 76 78 82 81 84 82 85 84 87 86 89 90 90 90 90 91 93 94 94 98...
output:
48475 54131 56879 54501 49951 55359 46639 52775 56387 53417 55987 58213 48849 46865 56865
result:
ok 15 numbers
Test #6:
score: 5
Accepted
time: 0ms
memory: 3624kb
input:
6 15 90 2 0 1 1 3 3 4 6 3 5 6 1 4 8 6 3 7 2 8 17 12 1 15 8 10 17 4 7 22 1 16 15 13 17 6 24 18 20 29 24 5 37 26 19 1 36 10 11 1 32 12 29 25 36 43 25 36 35 27 30 48 13 57 43 3 48 20 49 10 42 33 32 15 67 3 72 18 59 45 65 22 47 21 76 44 36 70 31 40 36 75 97 2 10 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
32399 37731 39999 28223 29668 37731 36193 26895 35436 39301 33946 31771 30975 24335 36958
result:
ok 15 numbers
Test #7:
score: 0
Wrong Answer
time: 16ms
memory: 3836kb
input:
7 15 23937 2 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50 51 ...
output:
-3047407 -148206074 -347536046 -573049706 -781530585 -842435355 -199797518 -859366301 -137398331 -373780986 -750908273 -862618609 -974401621 -985588154 -917039594
result:
wrong answer 1st numbers differ - expected: '291919861', found: '-3047407'
Test #8:
score: 5
Accepted
time: 0ms
memory: 3576kb
input:
8 15 1 89 0 1 88 0 1 86 0 1 81 0 1 89 0 1 88 0 1 85 0 1 88 0 1 99 0 1 93 0 1 94 0 1 79 0 1 97 0 1 88 0 1 96 0
output:
643555007 320020087 809556406 776533926 643555007 320020087 414090976 320020087 356146221 792287148 157695640 15616881 389622706 320020087 654868516
result:
ok 15 numbers
Test #9:
score: 5
Accepted
time: 0ms
memory: 3724kb
input:
9 15 1 85 0 1 86 0 1 90 0 1 87 0 1 87 0 1 91 0 1 81 0 1 79 0 1 86 0 1 80 0 1 81 0 1 88 0 1 98 0 1 89 0 1 78 0
output:
414090976 809556406 196345448 53257258 53257258 538525843 776533926 15616881 809556406 483084065 776533926 320020087 976427145 643555007 299462530
result:
ok 15 numbers
Test #10:
score: 5
Accepted
time: 1ms
memory: 3644kb
input:
10 15 1 2600 0 1 2562 0 1 2885 0 1 2926 0 1 2980 0 1 2796 0 1 2809 0 1 2441 0 1 2964 0 1 2384 0 1 2634 0 1 2284 0 1 2732 0 1 2525 0 1 2635 0
output:
980378455 337526154 558193103 125913045 124855760 503883918 199525532 902720193 515375300 777422724 363348923 334557029 939566213 938891504 485461889
result:
ok 15 numbers
Test #11:
score: 0
Wrong Answer
time: 13ms
memory: 3656kb
input:
11 15 1 97 8 1 98 8 1 75 9 1 86 10 1 91 10 1 80 10 1 99 10 1 75 10 1 81 3 1 86 8 1 76 10 1 79 9 1 77 9 1 79 8 1 92 10
output:
62690409 707724911 358447602 936017711 568604647 222351304 929971381 365930284 748870535 994378470 256660429 618696539 737371887 846151921 900380129
result:
wrong answer 1st numbers differ - expected: '201967493', found: '62690409'
Test #12:
score: 0
Wrong Answer
time: 393ms
memory: 3640kb
input:
12 15 1 2419 9 1 3000 8 1 2952 9 1 2911 10 1 2596 8 1 2997 10 1 2479 10 1 2447 10 1 2504 8 1 2325 9 1 2473 10 1 2674 8 1 2817 9 1 2303 8 1 2253 6
output:
852029518 632219195 603871723 816798674 504736207 339573394 505331194 286295834 971735694 519706340 701072988 426645492 651656366 765575630 953882955
result:
wrong answer 1st numbers differ - expected: '897921773', found: '852029518'
Test #13:
score: 5
Accepted
time: 0ms
memory: 3604kb
input:
13 15 96 77 0 1 1 2 2 3 3 4 4 5 1 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 6 7 7 7 7 7 7 7 7 7 7 8 8 65 17 9 33 83 76 52 42 17 56 39 82 26 53 89 96 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ...
output:
875522633 817514869 984115449 171618725 413906221 67403237 626927815 102038917 731937401 81736574 147698013 5718686 570093465 291610 736092684
result:
ok 15 numbers
Test #14:
score: 5
Accepted
time: 0ms
memory: 3672kb
input:
14 15 79 92 0 1 2 1 3 2 5 6 6 6 10 7 8 10 13 14 13 15 16 17 18 17 18 21 24 25 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 10 18 33 33 18 9 48 19 2 6 12 28 3 22 50 5 24 14 10 15 42 11 44 36 38 58 21 9 96 81 0 1 2 3 4 3 2 4 7 7 1 7 10 12 13 1 9 14 6 13 18 4 2 4 14 25 3 3...
output:
69626057 106800079 696160675 125365500 105229737 980457872 857341479 727730150 931017912 72350415 700427628 857341479 458562426 105229737 33015237
result:
ok 15 numbers
Test #15:
score: 5
Accepted
time: 16ms
memory: 3836kb
input:
15 15 27219 2720 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50...
output:
512213075 634563835 412223891 885815756 909933373 460122433 143582817 318866407 952581018 559698410 15451972 798343658 240180291 40997907 507956430
result:
ok 15 numbers
Test #16:
score: 5
Accepted
time: 14ms
memory: 3784kb
input:
16 15 23470 2270 0 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50...
output:
613353516 498696894 341174230 524070747 458732519 657246209 497631698 460156266 650070681 438365748 579953962 638226266 303839474 655729798 51100917
result:
ok 15 numbers
Test #17:
score: 0
Wrong Answer
time: 9ms
memory: 3584kb
input:
17 15 94 82 9 1 2 2 3 3 6 6 8 6 10 7 10 13 10 14 14 16 17 18 17 20 18 23 24 22 26 25 27 25 26 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 59 39 56 52 21 51 66 59 33 68 29 34 62 47 59 76 54 72 40 40 3 4 63 33 44 73 59 18 19 70 25 77 93 86 8 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 ...
output:
341369429 627241653 255020361 971833299 237030470 204434789 106616876 624048245 458244152 95651121 965027565 358605138 514106246 100541324 80779775
result:
wrong answer 1st numbers differ - expected: '57879436', found: '341369429'
Test #18:
score: 0
Wrong Answer
time: 7ms
memory: 3740kb
input:
18 15 78 96 1 1 1 2 2 3 3 4 4 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2 2 2 3 3 3 3 3 3 3 3 3 4 4 4 4 4 4 4 4 4 5 5 5 5 5 5 5 5 5 6 6 6 6 6 6 6 6 6 7 7 52 54 22 16 21 56 64 32 42 64 52 49 19 87 86 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1...
output:
76805686 824268783 837903808 352059762 530111733 33916812 946235825 927675758 376735649 128633427 588299424 618392550 864062355 227628660 540275359
result:
wrong answer 2nd numbers differ - expected: '353383610', found: '824268783'
Test #19:
score: 0
Wrong Answer
time: 386ms
memory: 3704kb
input:
19 15 26104 2591 3 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 31 31 32 32 33 33 34 34 35 35 36 36 37 37 38 38 39 39 40 40 41 41 42 42 43 43 44 44 45 45 46 46 47 47 48 48 49 49 50 50...
output:
808846430 964780844 600165782 940744276 466326831 66670537 560299786 13688817 744748774 833982065 306435449 110763887 116143954 337514526 67983948
result:
wrong answer 1st numbers differ - expected: '352998989', found: '808846430'
Test #20:
score: 0
Wrong Answer
time: 440ms
memory: 3780kb
input:
20 15 22821 2558 8 1 1 1 3 2 4 2 5 5 5 7 7 13 4 15 12 1 17 15 6 10 10 13 20 20 1 16 14 9 9 28 24 14 28 2 28 35 20 30 37 1 9 21 35 42 23 41 11 15 29 10 1 13 6 24 11 11 46 32 39 32 10 59 57 20 24 51 24 60 28 65 16 31 42 25 12 27 28 53 49 15 12 58 73 83 47 7 71 2 2 26 57 82 61 17 17 48 96 23 83 2 41 59...
output:
341090759 46935795 675567985 198823392 476570827 606072445 575913241 119800864 659986788 639151075 137670696 384472332 758235022 479738721 546150101
result:
wrong answer 1st numbers differ - expected: '852082753', found: '341090759'