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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
#401227	#946. Magic Tree	sichengzhou	43.5	156ms	800892kb	C++14	2.7kb	2024-04-28 09:19:04	2024-04-28 09:19:04

Judging History

你现在查看的是最新测评结果

[2024-04-28 09:19:04]
评测

测评结果：43.5
用时：156ms
内存：800892kb

查看

[2024-04-28 09:19:04]
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;
    K=val[0];
    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;
}

源文件, 语言: C++14

详细

Subtask #1:

score: 6

Accepted

Test #1:

score: 6

Accepted

time: 1ms

memory: 5948kb

input:

output:

result:

ok answer is '7'

Test #2:

score: 0

Accepted

time: 0ms

memory: 7992kb

input:

output:

result:

ok answer is '12'

Test #3:

score: 0

Accepted

time: 0ms

memory: 5964kb

input:

output:

result:

ok answer is '9'

Test #4:

score: 0

Accepted

time: 1ms

memory: 5876kb

input:

output:

result:

ok answer is '14'

Test #5:

score: 0

Accepted

time: 0ms

memory: 5924kb

input:

output:

result:

ok answer is '3'

Test #6:

score: 0

Accepted

time: 0ms

memory: 5968kb

input:

output:

result:

ok answer is '8'

Test #7:

score: 0

Accepted

time: 1ms

memory: 6036kb

input:

output:

result:

ok answer is '19'

Test #8:

score: 0

Accepted

time: 1ms

memory: 5904kb

input:

output:

result:

ok answer is '14'

Test #9:

score: 0

Accepted

time: 1ms

memory: 5880kb

input:

output:

result:

ok answer is '9'

Subtask #2:

score: 0

Runtime Error

Test #10:

score: 0

Runtime Error

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: 3ms

memory: 14240kb

input:

1000 500 1000
1
2
3
4
5
6
7
8
9
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11
12
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97
98
9...

output:

result:

ok answer is '3'

Test #16:

score: 0

Accepted

time: 3ms

memory: 14172kb

input:

1000 500 1000
1
2
3
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5
6
7
8
9
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9...

output:

result:

ok answer is '38'

Test #17:

score: 0

Accepted

time: 0ms

memory: 14308kb

input:

1000 500 1000
1
2
3
4
5
6
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9
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9...

output:

result:

ok answer is '500'

Test #18:

score: -11

Time Limit Exceeded

input:

100000 99999 100000
1
2
3
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5
6
7
8
9
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11
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9...

output:

result:

Subtask #4:

score: 12

Accepted

Test #21:

score: 12

Accepted

time: 32ms

memory: 765788kb

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: 0

Accepted

time: 23ms

memory: 760980kb

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: 0

Accepted

time: 32ms

memory: 757952kb

input:

100000 90000 2
1
2
3
2
5
5
4
7
9
8
11
10
3
12
15
10
17
16
18
3
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23
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2
22
25
10
28
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30
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34
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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: 0

Accepted

time: 19ms

memory: 748332kb

input:

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

output:

44981598598688

result:

ok answer is '44981598598688'

Test #25:

score: 0

Accepted

time: 24ms

memory: 799084kb

input:

100000 90000 2
1
2
3
4
5
6
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8
9
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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: 43ms

memory: 773732kb

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:

result:

ok answer is '62571'

Test #27:

score: 0

Accepted

time: 32ms

memory: 769768kb

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:

result:

ok answer is '63666'

Test #28:

score: 0

Accepted

time: 31ms

memory: 753520kb

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
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23
22
25
16
27
26
27
31
32
30
33
35
36
34
37
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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:

result:

ok answer is '21768'

Test #29:

score: 0

Accepted

time: 24ms

memory: 742600kb

input:

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

output:

result:

ok answer is '89999'

Test #30:

score: 0

Accepted

time: 31ms

memory: 800892kb

input:

100000 90000 20
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
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96
97
98...

output:

result:

ok answer is '5018'

Subtask #6:

score: 13

Accepted

Test #31:

score: 13

Accepted

time: 18ms

memory: 119604kb

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:

386917987664

result:

ok answer is '386917987664'

Test #32:

score: 0

Accepted

time: 91ms

memory: 548048kb

input:

100000 770 60000
1
2
3
3
2
2
4
7
9
9
3
11
6
6
13
12
4
4
7
11
20
17
1
22
15
1
10
21
9
23
31
22
12
24
16
26
29
9
36
13
8
5
41
38
34
19
31
29
13
32
11
39
38
32
26
38
39
29
38
6
49
59
3
9
18
38
42
20
38
11
45
8
68
19
51
66
53
7
26
35
56
60
35
32
45
57
45
27
64
49
46
64
13
64
4
49
32
22
45
67
67
62
70
10...

output:

372407653338

result:

ok answer is '372407653338'

Test #33:

score: 0

Accepted

time: 116ms

memory: 560604kb

input:

100000 770 90000
1
1
3
4
5
3
4
8
7
4
9
4
8
7
1
8
2
5
15
12
4
8
12
18
1
12
26
9
16
19
28
5
5
15
35
25
29
8
1
20
24
31
14
29
43
11
27
46
22
8
27
29
43
13
44
14
24
15
2
38
22
57
15
44
63
17
49
30
60
30
57
24
49
29
29
14
72
36
17
37
76
78
5
2
44
59
4
67
65
29
64
59
87
46
95
2
70
80
41
39
11
69
86
93
33
...

output:

391025345374

result:

ok answer is '391025345374'

Test #34:

score: 0

Accepted

time: 156ms

memory: 566396kb

input:

100000 1000 90000
1
2
3
1
3
3
4
6
3
5
5
3
9
3
12
14
2
6
15
2
15
14
14
8
12
7
26
13
12
23
15
1
29
2
11
34
18
26
37
23
23
26
12
9
3
32
31
38
33
21
50
25
50
24
9
51
6
9
15
5
8
25
39
3
17
42
21
54
50
25
37
59
42
16
43
15
55
43
79
17
67
57
26
19
46
86
87
9
56
7
65
31
86
11
64
72
38
71
44
86
76
66
58
83
5...

output:

479762613817

result:

ok answer is '479762613817'

Test #35:

score: 0

Accepted

time: 73ms

memory: 14124kb

input:

100000 1000 100000
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...

output:

505184101665

result:

ok answer is '505184101665'

Test #36:

score: 0

Accepted

time: 140ms

memory: 422008kb

input:

100000 1000 100000
1
2
2
3
4
2
6
1
6
8
3
11
2
6
11
13
12
12
11
19
1
12
2
17
21
26
25
27
28
25
30
8
8
29
28
26
12
11
3
32
6
2
21
41
35
25
29
8
46
12
26
46
28
19
25
26
6
45
32
59
29
50
61
28
61
6
2
63
69
19
8
1
66
30
12
17
2
69
66
27
41
63
59
35
79
74
86
41
13
11
29
1
4
46
11
25
69
11
88
87
17
88
3
10...

output:

335049254491

result:

ok answer is '335049254491'

Test #37:

score: 0

Accepted

time: 119ms

memory: 700740kb

input:

100000 1000 100000
1
2
2
4
5
3
7
6
8
10
10
12
13
9
15
8
16
18
9
19
12
21
14
24
23
26
10
25
27
29
3
31
4
18
33
30
37
33
36
40
38
29
42
41
44
45
27
47
5
46
49
52
51
51
55
53
56
58
59
60
4
9
61
57
65
64
66
67
59
69
52
24
68
74
71
75
33
77
76
79
80
82
81
5
83
45
84
88
89
77
90
86
71
92
95
93
97
96
98
10...

output:

136740610217

result:

ok answer is '136740610217'

Subtask #7:

score: 0

Skipped

Dependency #3:

Subtask #8:

score: 0

Skipped

Dependency #1:

100%

Accepted