Submission #3270043


Source Code Expand

#include<iostream>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<algorithm>
#include<vector>
using namespace std;
#define ll long long
#define MAX 100100
inline int read()
{
	int x=0;bool t=false;char ch=getchar();
	while((ch<'0'||ch>'9')&&ch!='-')ch=getchar();
	if(ch=='-')t=true,ch=getchar();
	while(ch<='9'&&ch>='0')x=x*10+ch-48,ch=getchar();
	return t?-x:x;
}
struct Line{int v,next;}e[MAX];
int h[MAX],cnt=1;
inline void Add(int u,int v){e[cnt]=(Line){v,h[u]};h[u]=cnt++;}
int n,f[MAX],S[MAX],top;
void dfs(int u)
{
	for(int i=h[u];i;i=e[i].next)dfs(e[i].v);
	top=0;
	for(int i=h[u];i;i=e[i].next)S[++top]=f[e[i].v];
	sort(&S[1],&S[top+1]);
	for(int i=1;i<=top;++i)f[u]=max(f[u],S[i]+top-i+1);
}
int main()
{
	n=read();
	for(int i=2;i<=n;++i)Add(read(),i);
	dfs(1);printf("%d\n",f[1]);
	return 0;
}

Submission Info

Submission Time
Task B - Tournament
User yybyyb
Language C++14 (GCC 5.4.1)
Score 800
Code Size 873 Byte
Status AC
Exec Time 10 ms
Memory 4992 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 10 ms 1792 KB
02.txt AC 10 ms 1792 KB
03.txt AC 10 ms 1792 KB
04.txt AC 10 ms 1792 KB
05.txt AC 10 ms 1792 KB
06.txt AC 10 ms 1792 KB
07.txt AC 10 ms 1792 KB
08.txt AC 10 ms 1792 KB
09.txt AC 10 ms 1792 KB
10.txt AC 10 ms 1792 KB
11.txt AC 10 ms 4992 KB
12.txt AC 9 ms 3840 KB
13.txt AC 9 ms 3328 KB
14.txt AC 9 ms 2816 KB
15.txt AC 9 ms 2560 KB
16.txt AC 9 ms 2176 KB
17.txt AC 9 ms 2048 KB
18.txt AC 9 ms 1920 KB
19.txt AC 9 ms 1792 KB
20.txt AC 10 ms 1792 KB
21.txt AC 5 ms 1408 KB
22.txt AC 6 ms 1280 KB
23.txt AC 5 ms 1152 KB
24.txt AC 5 ms 1152 KB
25.txt AC 6 ms 1024 KB
26.txt AC 6 ms 1024 KB
27.txt AC 8 ms 1024 KB
28.txt AC 8 ms 1024 KB
29.txt AC 7 ms 1024 KB
30.txt AC 7 ms 1024 KB
31.txt AC 7 ms 1408 KB
32.txt AC 7 ms 1280 KB
33.txt AC 7 ms 1280 KB
34.txt AC 7 ms 1152 KB
35.txt AC 8 ms 1152 KB
36.txt AC 6 ms 1024 KB
37.txt AC 6 ms 1024 KB
38.txt AC 7 ms 1024 KB
39.txt AC 6 ms 1024 KB
40.txt AC 5 ms 1024 KB
41.txt AC 1 ms 256 KB
42.txt AC 1 ms 256 KB
43.txt AC 1 ms 256 KB
44.txt AC 1 ms 256 KB
45.txt AC 1 ms 256 KB
46.txt AC 1 ms 256 KB
47.txt AC 1 ms 256 KB
48.txt AC 1 ms 256 KB
49.txt AC 1 ms 256 KB
50.txt AC 1 ms 256 KB
s1.txt AC 1 ms 256 KB
s2.txt AC 1 ms 256 KB
s3.txt AC 1 ms 256 KB