Submission #2172110
Source Code Expand
#include<cstdio> #include<algorithm> using namespace std; const int N=1e5+5; int n,i,he[N],lt[N],f[N]; int read(){ char c=getchar();int k=0;for (;c<48||c>57;c=getchar()); for (;c>47&&c<58;c=getchar()) k=(k<<3)+(k<<1)+c-48;return k; } int dn,d[N]; void dfs(int x){ for (int y=he[x];y;y=lt[y]) dfs(y); dn=0; for (int y=he[x];y;y=lt[y]) d[++dn]=f[y]; sort(d+1,d+dn+1); for (int i=1;i<=dn;i++) f[x]=max(f[x],d[i])+1; } int main(){ for (n=read(),i=2;i<=n;i++){ int x=read();lt[i]=he[x];he[x]=i; } dfs(1); printf("%d",f[1]); }
Submission Info
Submission Time | |
---|---|
Task | B - Tournament |
User | zhanglexing |
Language | C++14 (GCC 5.4.1) |
Score | 800 |
Code Size | 556 Byte |
Status | AC |
Exec Time | 9 ms |
Memory | 4480 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 800 / 800 | ||||
Status |
|
|
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 | 9 ms | 1280 KB |
02.txt | AC | 9 ms | 1280 KB |
03.txt | AC | 9 ms | 1280 KB |
04.txt | AC | 9 ms | 1280 KB |
05.txt | AC | 9 ms | 1280 KB |
06.txt | AC | 9 ms | 1280 KB |
07.txt | AC | 9 ms | 1280 KB |
08.txt | AC | 9 ms | 1280 KB |
09.txt | AC | 9 ms | 1280 KB |
10.txt | AC | 9 ms | 1280 KB |
11.txt | AC | 9 ms | 4480 KB |
12.txt | AC | 8 ms | 3456 KB |
13.txt | AC | 8 ms | 2944 KB |
14.txt | AC | 8 ms | 2432 KB |
15.txt | AC | 8 ms | 2048 KB |
16.txt | AC | 8 ms | 1664 KB |
17.txt | AC | 8 ms | 1536 KB |
18.txt | AC | 8 ms | 1408 KB |
19.txt | AC | 8 ms | 1408 KB |
20.txt | AC | 8 ms | 1280 KB |
21.txt | AC | 4 ms | 896 KB |
22.txt | AC | 4 ms | 768 KB |
23.txt | AC | 4 ms | 640 KB |
24.txt | AC | 4 ms | 640 KB |
25.txt | AC | 4 ms | 640 KB |
26.txt | AC | 5 ms | 640 KB |
27.txt | AC | 5 ms | 512 KB |
28.txt | AC | 5 ms | 512 KB |
29.txt | AC | 6 ms | 512 KB |
30.txt | AC | 6 ms | 512 KB |
31.txt | AC | 7 ms | 896 KB |
32.txt | AC | 6 ms | 768 KB |
33.txt | AC | 6 ms | 768 KB |
34.txt | AC | 6 ms | 640 KB |
35.txt | AC | 6 ms | 640 KB |
36.txt | AC | 5 ms | 640 KB |
37.txt | AC | 5 ms | 640 KB |
38.txt | AC | 5 ms | 512 KB |
39.txt | AC | 5 ms | 512 KB |
40.txt | AC | 5 ms | 512 KB |
41.txt | AC | 1 ms | 128 KB |
42.txt | AC | 1 ms | 128 KB |
43.txt | AC | 1 ms | 128 KB |
44.txt | AC | 1 ms | 128 KB |
45.txt | AC | 1 ms | 128 KB |
46.txt | AC | 1 ms | 128 KB |
47.txt | AC | 1 ms | 128 KB |
48.txt | AC | 1 ms | 128 KB |
49.txt | AC | 1 ms | 128 KB |
50.txt | AC | 1 ms | 128 KB |
s1.txt | AC | 1 ms | 128 KB |
s2.txt | AC | 1 ms | 128 KB |
s3.txt | AC | 1 ms | 128 KB |