Submission #4192165


Source Code Expand

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

typedef unsigned long long ull;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<double, double> pdd;
const ull mod = 1e9 + 7;
#define REP(i,n) for(int i=0;i<(int)n;++i)

//debug
#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;

template < typename T >
void vprint(T &v){
	REP(i, v.size()){
		cout << v[i] << " ";
	}
	cout << endl;
}

vector<ll> ka[101010];

ll rec(ll x){
	if(ka[x].size()==0) return 0;
	vector<ll> list;
	REP(i, ka[x].size()){
		list.push_back(rec(ka[x][i]));
	}
	sort(list.rbegin(), list.rend());
	ll res = -1;
	REP(i, list.size()){
		res = max(res, list[i]+i+1);
	}
	return res;
}

int main(){
	ll N;
	cin >> N;
	REP(i, N-1){
		ll a;
		cin >> a;
		a--;
		ka[a].push_back(i+1);
	}

	cout << rec(0) << endl;
    return 0;
}

Submission Info

Submission Time
Task B - Tournament
User theory_and_me
Language C++14 (GCC 5.4.1)
Score 800
Code Size 983 Byte
Status AC
Exec Time 47 ms
Memory 16640 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 46 ms 4480 KB
02.txt AC 45 ms 4480 KB
03.txt AC 45 ms 4480 KB
04.txt AC 46 ms 4480 KB
05.txt AC 45 ms 4480 KB
06.txt AC 46 ms 4480 KB
07.txt AC 45 ms 4480 KB
08.txt AC 45 ms 4480 KB
09.txt AC 46 ms 4480 KB
10.txt AC 45 ms 4480 KB
11.txt AC 47 ms 16640 KB
12.txt AC 46 ms 12800 KB
13.txt AC 46 ms 10752 KB
14.txt AC 46 ms 8832 KB
15.txt AC 44 ms 7424 KB
16.txt AC 44 ms 6272 KB
17.txt AC 44 ms 5504 KB
18.txt AC 44 ms 4992 KB
19.txt AC 45 ms 4736 KB
20.txt AC 45 ms 4736 KB
21.txt AC 21 ms 4980 KB
22.txt AC 21 ms 4332 KB
23.txt AC 21 ms 4200 KB
24.txt AC 22 ms 3852 KB
25.txt AC 21 ms 3840 KB
26.txt AC 22 ms 3712 KB
27.txt AC 23 ms 3712 KB
28.txt AC 24 ms 3712 KB
29.txt AC 26 ms 3840 KB
30.txt AC 27 ms 3712 KB
31.txt AC 40 ms 4224 KB
32.txt AC 40 ms 4224 KB
33.txt AC 38 ms 3840 KB
34.txt AC 36 ms 3968 KB
35.txt AC 35 ms 4224 KB
36.txt AC 31 ms 3456 KB
37.txt AC 30 ms 3456 KB
38.txt AC 27 ms 3584 KB
39.txt AC 25 ms 3584 KB
40.txt AC 23 ms 3456 KB
41.txt AC 3 ms 2560 KB
42.txt AC 3 ms 2560 KB
43.txt AC 3 ms 2560 KB
44.txt AC 3 ms 2560 KB
45.txt AC 3 ms 2560 KB
46.txt AC 3 ms 2560 KB
47.txt AC 3 ms 2560 KB
48.txt AC 3 ms 2560 KB
49.txt AC 3 ms 2560 KB
50.txt AC 3 ms 2560 KB
s1.txt AC 3 ms 2560 KB
s2.txt AC 3 ms 2560 KB
s3.txt AC 3 ms 2560 KB