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IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#401226#946. Magic Treesichengzhou30.5 1127ms797672kbC++142.7kb2024-04-28 09:17:462024-04-28 09:17:46

Judging History

你现在查看的是最新测评结果

  • [2024-04-28 09:17:46]
  • 评测
  • 测评结果:30.5
  • 用时:1127ms
  • 内存:797672kb
  • [2024-04-28 09:17:46]
  • 提交

answer

#include<bits/stdc++.h>
using namespace std;
typedef long long LL;
const int N=1e5+5,M=1e3+3;
int n,m,K,fa[N],d[N],w[N];
struct Edge{
    int v,nxt;
}e[N];
int h[N],tot1;
void addEdge(int u,int v)
{
    tot1++;
    e[tot1].v=v;e[tot1].nxt=h[u];
    h[u]=tot1;
}
LL f[N][M];
struct Seg{
    int l,r;
    LL val,mx,lz;
}t[N*18];
int rt[N],tot;
void update(int p)
{
    t[p].val=max(t[t[p].l].val,t[t[p].r].val);
}
void pushlz(int p,LL z)
{
    t[p].mx+=z;
    t[p].lz+=z;
    t[p].val+=z;
}
void pushmx(int p,LL z)
{
    t[p].mx=max(t[p].mx,z);
    t[p].val=max(t[p].val,z);
}
void lzdown(int p)
{
    if(t[p].l)
    {
        pushlz(t[p].l,t[p].lz);
        pushmx(t[p].l,t[p].mx);
    }
    if(t[p].r)
    {
        pushlz(t[p].r,t[p].lz);
        pushmx(t[p].r,t[p].mx);
    }
    t[p].mx=0;t[p].lz=0;
}
void insert(int &p,int l,int r,int x,LL y)
{
    if(p==0)
    {
        p=++tot;
    }
    if(l==r)
    {
        t[p].val=y;
        return ;
    }
    int mid=l+r>>1;
    if(x<=mid)
    {
        insert(t[p].l,l,mid,x,y);
    }else{
        insert(t[p].r,mid+1,r,x,y);
    }
    update(p);
}
void merge(int &x,int y,int l,int r)
{
    if(x==0)
    {
        x=y;
        return ;
    }
    if(y==0)
    {
        return ;
    }
    if(l==r)
    {
        t[x].val=t[x].val+t[y].val;
        return ;
    }
    lzdown(x);
    lzdown(y);
    int mid=l+r>>1;
    if(t[y].r==0)
    {
        if(t[x].r)
        {
            pushlz(t[x].r,t[t[y].l].val);
        }
    }else{
        pushmx(t[y].r,t[t[y].l].val);
    }
    merge(t[x].l,t[y].l,l,mid);
    merge(t[x].r,t[y].r,mid+1,r);
    update(x);
}
void dfs(int u)
{
    if(w[u])
    {
        f[u][d[u]]=w[u];
    //    insert(rt[u],1,K,d[u],w[u]);
    }
    for(int i=h[u];i;i=e[i].nxt)
    {
        int v=e[i].v;
        dfs(v);
        LL mx=0;
        for(int j=1;j<=K;j++)
        {
            mx=max(mx,f[v][j]);
            f[u][j]+=mx;
        }
    //    merge(rt[u],rt[v],1,K);
    }
}
int val[N];
int main()
{
    int x;
    scanf("%d%d%d",&n,&m,&K);
    for(int i=2;i<=n;i++)
    {
        scanf("%d",&fa[i]);
        addEdge(fa[i],i);
    }
    for(int i=1;i<=m;i++)
    {
        scanf("%d",&x);
        scanf("%d%d",&d[x],&w[x]);
        val[++val[0]]=d[x];
    }
    sort(val+1,val+val[0]+1);
    val[0]=unique(val+1,val+val[0]+1)-val-1;
    for(int i=1;i<=n;i++)
    {
        if(w[i])
        {
            d[i]=lower_bound(val+1,val+val[0]+1,d[i])-val;
        }
    }
    dfs(1);
    LL mx=0;
    for(int i=1;i<=K;i++)
    {
        mx=max(mx,f[1][i]);
    }
    printf("%lld\n",mx);
    return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Subtask #1:

score: 6
Accepted

Test #1:

score: 6
Accepted
time: 1ms
memory: 6024kb

input:

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

output:

7

result:

ok answer is '7'

Test #2:

score: 6
Accepted
time: 0ms
memory: 5900kb

input:

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

output:

12

result:

ok answer is '12'

Test #3:

score: 6
Accepted
time: 0ms
memory: 7924kb

input:

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

output:

9

result:

ok answer is '9'

Test #4:

score: 6
Accepted
time: 1ms
memory: 5840kb

input:

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

output:

14

result:

ok answer is '14'

Test #5:

score: 6
Accepted
time: 1ms
memory: 5888kb

input:

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

output:

3

result:

ok answer is '3'

Test #6:

score: 6
Accepted
time: 0ms
memory: 5972kb

input:

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

output:

8

result:

ok answer is '8'

Test #7:

score: 6
Accepted
time: 1ms
memory: 5980kb

input:

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

output:

19

result:

ok answer is '19'

Test #8:

score: 6
Accepted
time: 1ms
memory: 5896kb

input:

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

output:

14

result:

ok answer is '14'

Test #9:

score: 6
Accepted
time: 1ms
memory: 5972kb

input:

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

output:

9

result:

ok answer is '9'

Subtask #2:

score: 0
Time Limit Exceeded

Test #10:

score: 0
Time Limit Exceeded

input:

100000 25000 100000
1
1
2
1
2
1
5
8
8
2
5
2
2
3
1
2
11
10
18
2
9
9
9
8
1
19
18
22
20
17
20
13
30
5
9
8
13
2
19
26
14
31
23
22
2
21
8
1
22
9
50
19
49
42
47
19
21
57
9
52
41
39
10
14
60
56
34
17
18
22
53
5
34
64
29
72
33
11
9
67
58
10
58
70
57
26
65
10
15
64
67
20
26
13
51
81
11
78
40
53
70
33
34
92
7...

output:


result:


Subtask #3:

score: 0
Time Limit Exceeded

Test #15:

score: 11
Accepted
time: 4ms
memory: 16180kb

input:

1000 500 1000
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
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84
85
86
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88
89
90
91
92
93
94
95
96
97
98
9...

output:

3

result:

ok answer is '3'

Test #16:

score: 11
Accepted
time: 3ms
memory: 12088kb

input:

1000 500 1000
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
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28
29
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31
32
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34
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38
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52
53
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55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
9...

output:

38

result:

ok answer is '38'

Test #17:

score: 11
Accepted
time: 4ms
memory: 16284kb

input:

1000 500 1000
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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
9...

output:

500

result:

ok answer is '500'

Test #18:

score: 0
Time Limit Exceeded

input:

100000 99999 100000
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
29
30
31
32
33
34
35
36
37
38
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40
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42
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44
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46
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48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
9...

output:


result:


Subtask #4:

score: 12
Accepted

Test #21:

score: 12
Accepted
time: 35ms
memory: 766192kb

input:

100000 90000 2
1
1
3
2
1
2
1
5
1
8
11
9
1
8
12
7
1
2
7
6
12
9
16
18
13
10
23
27
26
17
23
10
24
11
21
13
30
1
11
6
13
8
30
15
17
34
39
41
32
29
27
17
21
12
26
33
10
50
29
17
46
33
21
28
47
26
3
67
38
5
10
45
61
70
59
17
46
40
20
58
67
68
15
62
71
71
57
32
81
18
66
7
14
51
67
92
86
38
88
60
45
54
5
59...

output:

38521956905095

result:

ok answer is '38521956905095'

Test #22:

score: 12
Accepted
time: 28ms
memory: 761504kb

input:

100000 90000 1
1
1
2
2
5
1
2
7
3
6
3
7
8
6
11
1
17
11
15
1
11
3
7
4
11
12
20
5
14
17
29
4
6
27
29
1
9
11
1
5
23
42
36
10
16
39
34
14
31
5
22
48
43
43
1
34
51
26
10
16
22
15
42
8
63
27
57
16
50
60
23
67
44
13
40
60
49
55
77
73
44
32
80
50
26
20
24
72
75
21
47
74
24
67
59
43
19
17
85
61
12
99
21
104
1...

output:

44817789931778

result:

ok answer is '44817789931778'

Test #23:

score: 12
Accepted
time: 24ms
memory: 760440kb

input:

100000 90000 2
1
2
3
2
5
5
4
7
9
8
11
10
3
12
15
10
17
16
18
3
19
20
23
24
2
22
25
10
28
27
30
31
32
33
35
34
37
36
24
39
41
42
43
44
38
20
9
45
49
50
46
52
52
30
51
53
57
58
56
59
23
31
60
64
65
66
67
61
28
69
71
72
41
73
68
75
77
12
5
76
4
78
77
51
81
83
87
7
88
86
28
91
93
90
94
96
95
98
99
100
9...

output:

27165432883093

result:

ok answer is '27165432883093'

Test #24:

score: 12
Accepted
time: 28ms
memory: 732884kb

input:

100000 90000 2
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2...

output:

44981598598688

result:

ok answer is '44981598598688'

Test #25:

score: 12
Accepted
time: 24ms
memory: 797672kb

input:

100000 90000 2
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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
...

output:

22589648566145

result:

ok answer is '22589648566145'

Subtask #5:

score: 12.5
Accepted

Dependency #1:

100%
Accepted

Test #26:

score: 12.5
Accepted
time: 32ms
memory: 772996kb

input:

100000 90000 20
1
2
3
3
3
4
6
2
7
3
4
6
10
6
13
1
11
7
8
18
1
19
7
4
9
4
20
9
26
9
6
5
23
2
23
11
5
17
28
19
14
34
36
43
32
10
41
1
19
28
35
6
40
6
23
15
6
32
15
15
21
6
30
62
51
11
46
45
21
2
41
31
8
9
9
9
25
26
79
68
66
4
52
6
64
6
52
52
67
74
80
15
39
58
11
90
2
53
12
45
75
61
62
61
57
19
95
50
1...

output:

62571

result:

ok answer is '62571'

Test #27:

score: 12.5
Accepted
time: 28ms
memory: 769748kb

input:

100000 90000 10
1
1
1
4
2
5
5
8
2
5
4
7
7
1
7
16
1
13
18
5
13
15
6
24
10
16
20
22
25
17
23
31
22
25
29
8
4
20
24
40
26
10
26
23
10
13
12
34
41
16
9
21
51
17
50
32
54
12
35
51
4
27
48
18
43
42
49
29
30
64
29
25
58
64
73
61
45
24
78
6
26
33
34
68
44
22
83
11
73
59
13
58
3
87
3
55
72
14
37
37
5
40
3
21...

output:

63666

result:

ok answer is '63666'

Test #28:

score: 12.5
Accepted
time: 28ms
memory: 756700kb

input:

100000 90000 20
1
2
2
3
5
3
4
4
6
9
10
12
13
14
11
16
3
17
19
20
21
15
19
23
22
25
16
27
26
27
31
32
30
33
35
36
34
37
38
40
41
42
39
44
43
45
46
47
49
22
32
50
48
20
53
54
57
56
59
58
61
62
63
25
60
66
67
64
68
69
71
72
19
46
70
76
77
73
79
2
80
78
83
82
35
85
87
84
88
89
91
90
73
93
92
95
96
17
57...

output:

21768

result:

ok answer is '21768'

Test #29:

score: 12.5
Accepted
time: 20ms
memory: 748160kb

input:

100000 90000 20
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
...

output:

89999

result:

ok answer is '89999'

Test #30:

score: 12.5
Accepted
time: 27ms
memory: 797476kb

input:

100000 90000 20
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
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98...

output:

5018

result:

ok answer is '5018'

Subtask #6:

score: 0
Wrong Answer

Test #31:

score: 0
Wrong Answer
time: 1127ms
memory: 158520kb

input:

20000 800 60000
1
1
1
2
3
1
7
8
6
1
7
6
1
7
14
16
11
13
14
3
11
11
4
2
5
24
20
24
16
30
15
3
24
31
12
7
2
29
14
25
39
23
16
33
32
33
34
9
13
37
33
23
15
21
28
39
51
19
6
50
54
55
8
40
3
7
34
19
28
15
61
18
22
28
38
15
47
37
42
73
38
61
10
7
30
58
41
43
69
89
62
84
30
68
92
84
43
59
44
75
8
100
83
18...

output:

9192027148570393450

result:

wrong answer expected '386917987664', found '9192027148570393450'

Subtask #7:

score: 0
Skipped

Dependency #3:

0%

Subtask #8:

score: 0
Skipped

Dependency #1:

100%
Accepted

Dependency #2:

0%