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#545750#5124. Treeucup-team1329#AC ✓257ms91364kbC++172.3kb2024-09-03 16:54:362024-09-03 16:54:37

Judging History

你现在查看的是最新测评结果

  • [2024-09-03 16:54:37]
  • 评测
  • 测评结果：AC
  • 用时：257ms
  • 内存：91364kb
查看
  • [2024-09-03 16:54:36]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;

#define all(x) x.begin(), x.end()
#define all1(x) x.begin() + 1, x.end()
#define bit1(x) __builtin_popcountll(x)
#define Pqueue priority_queue
#define lc p << 1
#define rc p << 1 | 1
#define IOS ios::sync_with_stdio(false), cin.tie(0);
#define fi first
#define se second
#define lowbit(x) (x & -x)

typedef long long ll;
typedef long double ld;
typedef unsigned long long ull;
typedef pair<ll, ll> PII;

const ll mod = 1000000007;
const ll N = 1e6 + 10;
const ld eps = 1e-9;
const ll inf = 1e18;
const ll P = 131;
const ll dir[8][2] = {1, 0, 0, 1, -1, 0, 0, -1, 1, 1, 1, -1, -1, 1, -1, -1};

void solve()
{
    int n;
    cin >> n;
    vector g(n + 1, vector<int>());
    for (int i = 2; i <= n; i++)
    {
        int fa;
        cin >> fa;
        g[fa].push_back(i);
    }
    vector<int> f(n + 1);
    auto Dfs = [&](auto self, int u) -> int
    {
        int mx = 1;
        for (auto v : g[u])
            mx = max(mx, self(self, v) + 1);
        f[mx]++;
        return mx;
    };
    int ans = Dfs(Dfs, 1);
    for (int i = 1; i <= n; i++)
        ans = min(ans, f[i] + i - 1);
    cout << ans << "\n";
}

int main()
{
    IOS int T = 1;
    cin >> T;
    while (T--)
        solve();
    return 0;
}

/*
oxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxox
x                                                                                      o
o       _/_/_/_/                                                              _/       x
x      _/                                                                              o
o     _/_/_/_/ _/  _/_/   _/_/   _/_/_/ _/_/   _/_/_/     _/_/    _/_/_/    _/ _/   _/ x
x    _/       _/_/     _/    _/ _/   _/   _/  _/    _/ _/    _/  _/    _/  _/   _/ _/  o
o   _/       _/       _/    _/ _/   _/   _/  _/    _/ _/    _/  _/    _/  _/    _/_/   x
x  _/       _/         _/_/   _/   _/   _/  _/_/_/     _/_/ _/ _/    _/  _/      _/    o
o                                          _/                           _/      _/     x
x                                         _/                        _/_/       _/      o
o                                                                                      x
xoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxoxo
*/
源文件, 语言: C++17

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3596kb

input:

2
7
1 1 2 2 2 3
5
1 2 3 4

output:

3
1

result:

ok 2 number(s): "3 1"

Test #2:

score: 0
Accepted
time: 26ms
memory: 3792kb

input:

46234
1

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

output:

1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
3
2
2
2
3
2
3
3
3
3
2
2
2
3
3
2
3
3
3
2
2
2
3
3
3
2
3
3
2
2
2
3
3
3
3
2
3
2
2
2
3
3
3
3
3
2
2
2
2
2
2
3
3
3
3
2
3
2
2
2
3
3
3
3
2
2
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
3
3
3
3
3
2
2
2
3
3
3
3
2
2
2
2
2
3
2
3
3
3
2
3
3
3
3
3
3
3
...

result:

ok 46234 numbers

Test #3:

score: 0
Accepted
time: 78ms
memory: 91364kb

input:

1
1000000
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 99 10...

output:

1

result:

ok 1 number(s): "1"

Test #4:

score: 0
Accepted
time: 31ms
memory: 34552kb

input:

1
1000000
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 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:

2

result:

ok 1 number(s): "2"

Test #5:

score: 0
Accepted
time: 141ms
memory: 61656kb

input:

1
1000000
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 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:

1000

result:

ok 1 number(s): "1000"

Test #6:

score: 0
Accepted
time: 249ms
memory: 61724kb

input:

1
1000000
1 1 1 2 3 4 5 6 7 3 6 8 9 10 13 11 12 13 14 15 8 16 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 51 39 54 55 56 57 58 59 60 61 68 62 63 64 65 66 67 68 69 70 71 59 72 73 74 75 76 77 78 79 80 81 82 32 23 83 84 85 86 87 88 8...

output:

1405

result:

ok 1 number(s): "1405"

Test #7:

score: 0
Accepted
time: 257ms
memory: 61696kb

input:

1
1000000
1 1 1 1 2 3 4 5 6 7 8 9 10 11 14 1 12 13 14 15 19 16 17 18 19 20 21 20 22 23 24 25 26 27 28 20 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 29 46 47 48 49 50 51 52 53 54 53 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 51 76 77 78 79 80 81 82 83 84 85 86 23 87 88 89 ...

output:

1404

result:

ok 1 number(s): "1404"

Test #8:

score: 0
Accepted
time: 244ms
memory: 61824kb

input:

1
1000000
1 1 1 2 4 3 4 5 6 7 8 9 10 5 10 11 12 13 11 17 14 15 16 17 18 19 20 21 22 23 24 25 26 27 14 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 16 45 46 47 48 49 50 51 52 53 17 54 55 56 57 58 59 60 61 62 63 40 67 64 65 66 67 68 69 70 71 72 73 74 54 35 75 76 77 78 79 80 81 82 83 84 85 86 87 ...

output:

1406

result:

ok 1 number(s): "1406"

Test #9:

score: 0
Accepted
time: 131ms
memory: 11952kb

input:

7
142857
1 1 2 1 2 3 4 4 8 5 6 7 8 9 10 11 12 13 14 7 15 15 16 17 18 19 20 21 22 23 24 25 26 27 28 17 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 14 55 56 57 58 59 60 61 62 63 27 69 43 64 65 66 67 68 69 70 71 72 73 57 15 74 75 76 77 78 79 80 81 82 83 84 85 86 36 87 ...

output:

528
527
526
527
527
527
527

result:

ok 7 numbers

Test #10:

score: 0
Accepted
time: 122ms
memory: 9388kb

input:

10
100000
1 1 2 2 2 3 4 5 6 7 8 6 8 9 10 11 12 13 14 15 16 17 22 18 19 20 21 22 23 8 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 27 39 40 41 42 43 44 45 46 39 39 48 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 59 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89...

output:

439
439
441
439
441
441
442
441
441
440

result:

ok 10 numbers

Test #11:

score: 0
Accepted
time: 114ms
memory: 7500kb

input:

15
66666
1 2 3 1 2 3 4 5 6 1 7 8 9 10 2 11 12 13 14 15 16 17 18 19 20 21 19 22 23 24 25 26 27 34 28 29 30 31 32 33 34 10 35 36 37 38 39 40 41 42 22 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 57 20 62 63 64 65 66 67 68 69 70 71 77 72 73 74 75 76 77 78 79 80 81 82 83 77 84 85 86 87 88 89...

output:

360
358
359
359
359
359
359
360
359
360
359
361
358
360
359

result:

ok 15 numbers

Test #12:

score: 0
Accepted
time: 83ms
memory: 4840kb

input:

57
17543
1 1 2 2 3 5 4 5 6 3 7 8 9 10 3 1 4 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 25 32 33 34 35 36 37 38 39 3 40 41 42 43 44 45 46 47 48 6 49 50 51 52 53 54 55 56 57 58 26 59 60 61 62 63 64 65 66 67 68 69 69 17 70 71 72 73 74 75 76 77 78 79 80 81 54 82 83 84 85 86 87 88 89 ...

output:

181
182
181
182
182
183
183
183
182
183
183
182
181
184
183
183
182
181
181
183
182
183
181
183
182
182
182
183
183
183
180
182
183
183
182
181
181
181
183
183
182
182
180
182
181
183
182
182
183
183
183
181
180
181
181
182
183

result:

ok 57 numbers

Test #13:

score: 0
Accepted
time: 79ms
memory: 4368kb

input:

100
10000
1 2 2 2 3 5 3 4 5 6 7 8 9 10 11 12 13 14 15 9 8 16 17 18 19 20 2 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 11 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 3 49 19 21 13 61 62 63 64 65 66 67 68 69 20 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 8...

output:

136
138
138
136
135
137
136
136
137
138
137
137
138
138
138
137
137
137
138
137
137
136
138
136
138
138
138
137
137
138
137
136
136
137
137
137
137
138
137
136
137
138
136
136
138
138
136
137
137
138
136
137
137
138
137
138
137
138
136
135
138
137
136
137
134
137
137
136
137
137
135
136
138
138
136
...

result:

ok 100 numbers

Test #14:

score: 0
Accepted
time: 73ms
memory: 3612kb

input:

1000
1000
1 1 2 3 5 4 5 5 9 6 7 8 9 10 11 12 13 17 9 14 15 16 17 18 1 19 20 21 22 23 24 25 3 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 30 43 44 45 46 47 48 49 50 51 8 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 70 71 50 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 9...

output:

43
42
42
42
41
41
42
41
42
42
41
42
42
42
42
41
42
41
42
42
42
41
42
41
42
42
42
40
43
40
42
42
40
42
42
42
41
41
42
41
41
41
42
42
42
41
42
41
42
42
42
42
42
42
41
42
43
41
40
41
42
42
42
43
42
40
41
42
42
41
41
41
42
42
43
41
41
41
42
40
42
42
42
42
41
42
42
42
42
43
41
41
42
41
41
41
42
42
42
42
...

result:

ok 1000 numbers

Test #15:

score: 0
Accepted
time: 76ms
memory: 3624kb

input:

10000
100
1 1 3 2 2 3 4 5 7 6 7 8 9 10 11 12 13 14 4 2 10 15 16 17 18 19 5 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 23 46 47 48 49 50 51 52 53 54 16 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 13 37 49 76 77 78 79 80 81 82 83 84 85 86
100
1 2 2...

output:

12
12
13
12
12
12
12
11
12
12
12
12
13
13
12
12
12
11
13
13
12
12
13
12
12
12
12
13
13
13
12
12
12
13
11
13
13
12
12
12
13
12
12
12
12
12
12
12
12
11
12
13
11
13
12
12
12
12
12
12
12
13
12
12
12
11
12
12
13
13
12
13
12
13
12
11
12
11
11
12
13
12
13
12
12
13
12
12
12
12
12
12
12
12
12
12
12
11
12
13
...

result:

ok 10000 numbers

Test #16:

score: 0
Accepted
time: 62ms
memory: 3632kb

input:

100000
10
1 2 1 2 3 4 5 6 7
10
1 1 1 2 3 6 4 5 6
10
1 1 3 2 3 1 4 5 6
10
1 2 1 2 3 4 5 6 7
10
1 2 3 1 2 3 4 5 6
10
1 2 1 2 3 4 5 6 7
10
1 1 2 4 3 4 5 6 7
10
1 1 1 2 3 4 5 6 7
10
1 2 2 4 3 3 4 5 6
10
1 2 1 2 3 4 5 6 7
10
1 1 3 2 3 6 4 5 6
10
1 2 2 4 3 2 4 5 6
10
1 1 1 2 3 5 4 5 6
10
1 2 2 4 3 4 5 6 7...

output:

3
4
4
3
3
3
3
3
3
3
4
3
4
3
4
4
3
3
3
3
3
4
4
4
4
3
3
3
3
3
4
4
4
4
3
3
3
3
3
4
3
4
4
3
3
4
3
3
4
3
4
3
3
3
3
3
4
3
3
3
3
4
3
3
3
3
3
4
3
3
4
3
4
4
3
3
4
3
3
4
3
3
3
4
4
3
3
3
3
3
4
3
4
4
3
3
3
3
4
3
4
3
3
4
3
3
4
3
4
4
3
3
4
4
4
3
3
3
3
3
4
3
3
3
4
3
4
3
3
3
3
4
3
4
3
4
3
4
3
4
3
3
3
4
4
3
4
4
3
3
...

result:

ok 100000 numbers
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服务器时间: 2025-01-21 05:48:58 | 开源项目