Submission #5498361


Source Code Expand

#include "bits/stdc++.h"
using namespace std;
typedef long long ll;
const int INF = (1<<30);
const ll INFLL = (1ll<<60);
const ll MOD = (ll)(1e9+7);

#define l_ength size

void mul_mod(ll& a, ll b){
	a *= b;
	a %= MOD;
}

void add_mod(ll& a, ll b){
	a = (a<MOD)?a:(a-MOD);
	b = (b<MOD)?b:(b-MOD);
	a += b;
	a = (a<MOD)?a:(a-MOD);
}

int memo[100100];
bool done[100100];
vector<int> v[100100],g[100100];

int solve(int p){
	int n,i;
	if(done[p]){
		return memo[p];
	}
	done[p] = true;
	memo[p] = 0;
	n = g[p].l_ength();
	for(i=0; i<n; ++i){
		v[p].push_back(solve(g[p][i]));
	}
	sort(v[p].begin(),v[p].end());
	for(i=0; i<n; ++i){
		memo[p] = max(memo[p],v[p][i]+n-i);
	}
	return memo[p];
}

int main(void){
	int n,i,a;
	cin >> n;
	for(i=1; i<n; ++i){
		cin >> a; --a;
		g[a].push_back(i);
	}
	cout << solve(0) << endl;
	return 0;
}

Submission Info

Submission Time
Task B - Tournament
User ransewhale
Language C++14 (GCC 5.4.1)
Score 800
Code Size 885 Byte
Status AC
Exec Time 61 ms
Memory 20992 KB

Judge Result

Set Name Sample All
Score / Max Score 0 / 0 800 / 800
Status
AC × 3
AC × 53
Set Name Test Cases
Sample s1.txt, s2.txt, s3.txt
All 01.txt, 02.txt, 03.txt, 04.txt, 05.txt, 06.txt, 07.txt, 08.txt, 09.txt, 10.txt, 11.txt, 12.txt, 13.txt, 14.txt, 15.txt, 16.txt, 17.txt, 18.txt, 19.txt, 20.txt, 21.txt, 22.txt, 23.txt, 24.txt, 25.txt, 26.txt, 27.txt, 28.txt, 29.txt, 30.txt, 31.txt, 32.txt, 33.txt, 34.txt, 35.txt, 36.txt, 37.txt, 38.txt, 39.txt, 40.txt, 41.txt, 42.txt, 43.txt, 44.txt, 45.txt, 46.txt, 47.txt, 48.txt, 49.txt, 50.txt, s1.txt, s2.txt, s3.txt
Case Name Status Exec Time Memory
01.txt AC 58 ms 8704 KB
02.txt AC 56 ms 8704 KB
03.txt AC 57 ms 8704 KB
04.txt AC 61 ms 8704 KB
05.txt AC 58 ms 8704 KB
06.txt AC 59 ms 8704 KB
07.txt AC 59 ms 8704 KB
08.txt AC 60 ms 8704 KB
09.txt AC 59 ms 8704 KB
10.txt AC 56 ms 8704 KB
11.txt AC 56 ms 20992 KB
12.txt AC 55 ms 16384 KB
13.txt AC 55 ms 14464 KB
14.txt AC 54 ms 12800 KB
15.txt AC 55 ms 11648 KB
16.txt AC 55 ms 10624 KB
17.txt AC 55 ms 9984 KB
18.txt AC 55 ms 9600 KB
19.txt AC 59 ms 9472 KB
20.txt AC 57 ms 9344 KB
21.txt AC 25 ms 6392 KB
22.txt AC 23 ms 6436 KB
23.txt AC 24 ms 6516 KB
24.txt AC 24 ms 6400 KB
25.txt AC 24 ms 6400 KB
26.txt AC 26 ms 6400 KB
27.txt AC 28 ms 6400 KB
28.txt AC 29 ms 6400 KB
29.txt AC 33 ms 6528 KB
30.txt AC 33 ms 6528 KB
31.txt AC 51 ms 8576 KB
32.txt AC 49 ms 7552 KB
33.txt AC 45 ms 7040 KB
34.txt AC 45 ms 7040 KB
35.txt AC 42 ms 7168 KB
36.txt AC 38 ms 6400 KB
37.txt AC 36 ms 6272 KB
38.txt AC 32 ms 6400 KB
39.txt AC 31 ms 6400 KB
40.txt AC 27 ms 6272 KB
41.txt AC 3 ms 4992 KB
42.txt AC 3 ms 4992 KB
43.txt AC 3 ms 4992 KB
44.txt AC 3 ms 4992 KB
45.txt AC 3 ms 4992 KB
46.txt AC 3 ms 4992 KB
47.txt AC 3 ms 4992 KB
48.txt AC 3 ms 4992 KB
49.txt AC 3 ms 4992 KB
50.txt AC 3 ms 4992 KB
s1.txt AC 3 ms 4992 KB
s2.txt AC 3 ms 4992 KB
s3.txt AC 3 ms 4992 KB