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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
#73680#4811. Be CarefulCharlieVinnieTL 309ms22288kbC++203.5kb2023-01-27 16:03:572023-01-27 16:04:04

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.
  • [2023-01-27 16:04:04]
  • 评测
  • 测评结果:TL
  • 用时:309ms
  • 内存:22288kb
  • [2023-01-27 16:03:57]
  • 提交

answer

#define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
#define For(i,a,b) for(int i=a;i<=b;i++)
#define Rev(i,a,b) for(int i=a;i>=b;i--)
#define Fin(file) freopen(file,"r",stdin)
#define Fout(file) freopen(file,"w",stdout)
using namespace std;
const int N=205,mod=998244353; typedef long long ll;
int n,C[N][N],f[N][N],sf[N][N],deg[N],cnt[N],g[1<<20],h[1<<20][N],tmp[1<<20][N]; vector<int> to[N];
inline int ID(int x) { return (x&1)?mod-1:1; }
void dfs(int u,int pa){
    if(to[u].size()==1u&&pa!=0) { deg[u]=0; For(i,0,n) f[u][i]=1,sf[u][i]=n-i+1; ; return; }
    for(int v:to[u]) if(v!=pa) dfs(v,u),deg[u]++;
    memset(cnt,0,sizeof(cnt)); for(int v:to[u]) if(v!=pa) cnt[deg[v]]++; ; For(i,1,n) cnt[i]+=cnt[i-1];
    // int B=0,ww=1e9; For(i,0,21) if(i+cnt[n]-cnt[i]<ww) ww=i+cnt[n]-cnt[i],B=i;
    int B=1;
    vector<int> lis; for(int v:to[u]) if(v!=pa&&deg[v]>B) lis.push_back(v); ; int sz=lis.size();
    int lfcnt=0; for(int v:to[u]) if(v!=pa&&!deg[v]) lfcnt++;
    // cerr<<"u="<<u<<": B="<<B<<" sz="<<sz<<endl;
    assert(B<20&&sz<=20);
    const int all=(1<<(B+1))-1; For(s,0,all){
        g[s]=1; for(int v:to[u]) if(v!=pa&&deg[v]<=B&&deg[v]){
            int cc=0; For(i,0,B) if(!((s>>i)&1)) cc=(cc+f[v][i])%mod; ; g[s]=1ll*g[s]*cc%mod;
        }
    }
    // For(s,0,all) cerr<<g[s]<<' '; ; cerr<<endl;
    For(s,0,all) for(int s0=all^s;s0;s0=(s0-1)&(all^s)) g[s]=(g[s]+1ll*ID(__builtin_parity(s0))*g[s|s0])%mod;
    // For(s,0,all) cerr<<g[s]<<' '; ; cerr<<endl;
    const int all2=(1<<sz)-1;
    For(ss,0,all) if(g[ss]) {
        // cerr<<"ss="<<ss<<endl;
        For(s,0,all2) For(j,0,lfcnt) h[s][j]=0; ; h[0][0]=g[ss];
        For(i,0,deg[u]){
            if(i>B||(i<=B&&((ss>>i)&1))){
                For(s,0,all2) For(j,0,lfcnt) if(h[s][j]){
                    int w=h[s][j]; For(t,0,sz-1) if(!((s>>t)&1)) w=1ll*w*sf[lis[t]][i+1]%mod;
                    For(_,1,lfcnt-j) w=1ll*w*(n-i)%mod;
                    // printf("ss=%d,s=%d: f[%d][%d]+=%d\n",ss,s,u,i,w);
                    f[u][i]=(f[u][i]+w)%mod;
                }
            }
            // Rev(s,all2,0) Rev(j,lfcnt,0) if(h[s][j]){
            //     for(int s0=all2^s;;s0=(s0-1)&(all2^s)){
            //         int w=h[s][j]; For(t,0,sz-1) if((s0>>t)&1) w=1ll*w*f[lis[t]][i]%mod;
            //         For(k,j+(s0==0),lfcnt) h[s|s0][k]=(h[s|s0][k]+1ll*w*C[lfcnt-j][lfcnt-k])%mod;
            //         if(!s0) break;
            //     }
            //     if(i>B||((ss>>i)&1)) h[s][j]=0;
            // }
            For(s,0,all2) For(j,0,lfcnt) tmp[s][j]=h[s][j];
            For(s,0,all2) Rev(j,lfcnt,0) For(k,j+1,lfcnt) h[s][k]=(h[s][k]+1ll*h[s][j]*C[lfcnt-j][lfcnt-k])%mod;
            Rev(s,all2,0) For(j,0,lfcnt) if(h[s][j]) for(int s0=all2^s;s0;s0=(s0-1)&(all2^s)) {
                int w=h[s][j]; For(t,0,sz-1) if((s0>>t)&1) w=1ll*w*f[lis[t]][i]%mod; ; h[s|s0][j]=(h[s|s0][j]+w)%mod;
            }
            if(i>B||((ss>>i)&1)) For(s,0,all2) For(j,0,lfcnt) h[s][j]=(h[s][j]-tmp[s][j]+mod)%mod;
        }
    }
    Rev(i,n,0) sf[u][i]=(sf[u][i+1]+f[u][i])%mod;
}
signed main(){
    ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
    cin>>n; For(i,1,n-1) { int x,y; cin>>x>>y; to[x].push_back(y); to[y].push_back(x); }
    C[0][0]=1; For(i,1,n) { C[i][0]=1; For(j,1,i) C[i][j]=(C[i-1][j]+C[i-1][j-1])%mod; } ;  dfs(1,0); 
    // For(u,1,n){
    //     For(i,0,n) cerr<<f[u][i]<<' '; ; cerr<<endl;
    // }
    For(i,0,n) cout<<f[1][i]<<'\n';
    cerr<<"Time = "<<clock()<<" ms\n";
    return 0;
}

// START TYPING IF YOU DON'T KNOW WHAT TO DO

詳細信息

Test #1:

score: 100
Accepted
time: 1ms
memory: 7556kb

input:

5
1 2
1 3
2 4
2 5

output:

55
127
34
0
0
0

result:

ok 6 numbers

Test #2:

score: 0
Accepted
time: 4ms
memory: 9688kb

input:

8
1 2
1 3
1 4
1 5
1 6
6 7
6 8

output:

69632
265534
133905
47790
12636
1944
0
0
0

result:

ok 9 numbers

Test #3:

score: 0
Accepted
time: 1ms
memory: 7608kb

input:

3
1 2
2 3

output:

1
3
0
0

result:

ok 4 number(s): "1 3 0 0"

Test #4:

score: 0
Accepted
time: 3ms
memory: 9676kb

input:

2
1 2

output:

2
1
0

result:

ok 3 number(s): "2 1 0"

Test #5:

score: 0
Accepted
time: 3ms
memory: 9676kb

input:

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

output:

1755647
612579511
359376750
200038110
104287680
49974120
21379680
7771680
2177280
362880
0

result:

ok 11 numbers

Test #6:

score: 0
Accepted
time: 3ms
memory: 9628kb

input:

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

output:

114358881
100000000
0
0
0
0
0
0
0
0
0

result:

ok 11 numbers

Test #7:

score: 0
Accepted
time: 2ms
memory: 7712kb

input:

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

output:

10
1
0
0
0
0
0
0
0
0
0

result:

ok 11 numbers

Test #8:

score: 0
Accepted
time: 3ms
memory: 9600kb

input:

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

output:

27510
31142
102399
0
0
0
0
0
0
0
0

result:

ok 11 numbers

Test #9:

score: 0
Accepted
time: 2ms
memory: 7640kb

input:

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

output:

930962871
780146137
253920328
0
0
0
0
0
0
0
0
0
0
0
0

result:

ok 15 numbers

Test #10:

score: 0
Accepted
time: 0ms
memory: 7648kb

input:

20
7 6
2 6
5 1
17 12
9 13
12 18
3 2
9 1
2 1
12 6
10 9
14 2
4 1
6 8
11 2
16 9
13 19
8 15
20 5

output:

572808214
694156482
763085092
958730326
465749894
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

result:

ok 21 numbers

Test #11:

score: 0
Accepted
time: 0ms
memory: 7644kb

input:

21
6 12
11 13
1 7
8 14
1 18
5 4
1 2
16 11
21 1
9 10
15 17
1 9
1 8
1 20
1 3
1 4
19 16
11 1
15 10
3 6

output:

778184256
242901486
277265229
855621813
564317020
918444623
408876720
314039448
593931360
0
0
0
0
0
0
0
0
0
0
0
0
0

result:

ok 22 numbers

Test #12:

score: 0
Accepted
time: 2ms
memory: 7652kb

input:

22
20 21
9 12
6 10
19 10
16 10
10 11
8 7
13 12
21 22
19 20
14 13
7 6
8 9
15 14
2 5
18 6
5 6
3 2
16 17
2 1
3 4

output:

142157709
5878180
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

result:

ok 23 numbers

Test #13:

score: 0
Accepted
time: 1ms
memory: 7704kb

input:

23
6 10
4 2
6 9
15 20
10 15
3 6
17 23
1 3
16 22
19 14
17 12
7 11
18 13
11 16
5 3
8 5
10 14
8 12
9 13
4 7
1 2
15 21

output:

7619809
175546557
7936610
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0

result:

ok 24 numbers

Test #14:

score: 0
Accepted
time: 0ms
memory: 7692kb

input:

24
7 10
2 5
2 1
17 20
1 4
16 13
7 4
19 16
23 20
11 8
10 13
1 3
22 19
5 8
3 6
17 14
21 18
24 21
18 15
9 6
9 12
14 11
15 12

output:

24
576
15025
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 numbers

Test #15:

score: 0
Accepted
time: 0ms
memory: 7684kb

input:

24
22 16
17 11
15 9
13 7
8 2
1 3
5 1
6 12
9 3
14 8
21 15
17 23
19 13
7 1
24 18
2 1
5 11
1 4
4 10
18 12
20 14
10 16
1 6

output:

24
7962624
236177977
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 numbers

Test #16:

score: 0
Accepted
time: 10ms
memory: 8088kb

input:

200
1 199
95 1
1 75
177 1
66 1
157 1
85 1
1 193
1 26
8 1
38 1
151 1
1 56
63 1
1 138
1 59
190 1
1 36
1 120
156 1
115 1
1 118
171 1
6 1
113 1
20 1
83 1
1 176
33 1
153 1
1 169
22 1
1 159
1 27
87 1
1 129
1 44
174 1
1 93
77 1
1 122
1 125
1 23
1 81
112 1
173 1
1 51
32 1
96 1
184 1
116 1
67 1
1 94
1 104
19...

output:

211917199
369375874
201944418
582671162
183066248
639389350
952947539
137147613
216366713
398936459
73236543
354059031
727857197
121548413
610762100
573534011
706945631
286154195
226699593
267771858
823273748
233587424
176942776
226493975
707601105
339075191
694353149
944734662
932707579
934386415
4...

result:

ok 201 numbers

Test #17:

score: 0
Accepted
time: 14ms
memory: 8136kb

input:

200
2 199
95 2
2 75
177 2
66 2
157 2
85 2
2 193
2 26
8 2
38 2
151 2
2 56
63 2
2 138
2 59
190 2
2 36
2 120
156 2
115 2
2 118
171 2
6 2
113 2
20 2
83 2
2 176
33 2
153 2
2 169
22 2
2 159
2 27
87 2
2 129
2 44
174 2
2 93
77 2
2 122
2 125
2 23
2 81
112 2
173 2
2 51
32 2
96 2
184 2
116 2
67 2
2 94
2 104
19...

output:

356210711
85910356
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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 201 numbers

Test #18:

score: 0
Accepted
time: 4ms
memory: 10028kb

input:

200
198 199
95 94
74 75
177 176
66 65
157 156
85 84
192 193
25 26
8 7
38 37
151 150
55 56
63 62
137 138
58 59
190 189
35 36
119 120
156 155
115 114
117 118
171 170
6 5
113 112
20 19
83 82
175 176
33 32
153 152
168 169
22 21
158 159
26 27
87 86
128 129
43 44
174 173
92 93
77 76
121 122
124 125
22 23
...

output:

200
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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 201 numbers

Test #19:

score: 0
Accepted
time: 1ms
memory: 9812kb

input:

199
176 177
115 116
47 48
29 30
120 119
7 8
93 94
158 159
118 117
28 29
185 186
133 132
24 25
76 77
55 54
68 69
96 95
65 66
172 171
114 113
127 128
91 92
106 107
70 71
135 136
83 82
187 188
146 147
23 22
36 37
195 196
166 165
81 80
109 108
8 9
21 20
41 42
125 124
46 47
87 86
133 134
38 37
174 173
12...

output:

1
199
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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0
0
0
0
0
0
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0
0
0
0
0
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0
0
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0
0
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0
0
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0
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0
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0
0
0
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0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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 200 numbers

Test #20:

score: 0
Accepted
time: 0ms
memory: 8136kb

input:

200
28 56
82 165
53 107
94 188
67 134
51 102
69 139
18 37
10 20
33 66
179 89
156 78
53 106
93 186
113 56
9 19
8 16
65 130
33 16
41 82
37 74
197 98
26 53
18 36
195 97
30 60
132 66
81 162
61 30
40 81
26 52
168 84
79 39
128 64
27 54
68 136
91 45
40 20
122 61
108 54
3 6
118 59
91 182
177 88
15 31
133 66...

output:

115157040
769068498
218666068
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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0
0
0
0
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0
0
0
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0
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0
0
0
0
0
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0
0
0
0
0
0
0
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0
0
0
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0
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0
0
0
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0
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0
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0
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0
0
0
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0
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0
0
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0
0
0
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0
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0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
...

result:

ok 201 numbers

Test #21:

score: 0
Accepted
time: 1ms
memory: 9708kb

input:

200
51 153
118 39
23 68
26 9
163 54
7 2
21 62
174 58
125 42
50 150
15 46
32 95
186 62
53 158
7 22
29 88
165 55
47 140
9 3
18 6
20 59
131 44
90 30
149 50
35 12
11 32
15 5
4 13
110 37
160 53
3 10
51 152
154 51
37 12
94 31
119 40
49 146
196 65
16 48
46 138
4 12
116 39
74 25
27 81
105 35
61 182
18 55
19...

output:

96831322
243739289
839032182
347339046
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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result:

ok 201 numbers

Test #22:

score: 0
Accepted
time: 4ms
memory: 8164kb

input:

200
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24 97
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136 34
147 37
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40 158
199 50
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8 2
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1...

output:

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result:

ok 201 numbers

Test #23:

score: 0
Accepted
time: 2ms
memory: 8116kb

input:

200
124 21
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10 2
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111 1...

output:

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result:

ok 201 numbers

Test #24:

score: 0
Accepted
time: 13ms
memory: 8948kb

input:

200
6 61
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16 161
144 15
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115 12
147 15
175 18
19 186
86 9
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10 1...

output:

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result:

ok 201 numbers

Test #25:

score: 0
Accepted
time: 98ms
memory: 13980kb

input:

200
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31 3
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186 16
22 2
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17 194
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14 160
17 197
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8...

output:

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result:

ok 201 numbers

Test #26:

score: 0
Accepted
time: 309ms
memory: 22288kb

input:

200
101 8
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200 16
13 161
13 169
170 13
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4 50
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3 29
172 14
13 167
16 199
5 62
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144 11
10 121
26 2
15 194
11 1
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...

output:

941560284
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result:

ok 201 numbers

Test #27:

score: -100
Time Limit Exceeded

input:

200
50 4
2 21
175 13
181 13
13 178
9 121
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1 5
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141 10
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15 199
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...

output:


result: