Submission #3428555
Source Code Expand
#include<bits/stdc++.h> using namespace std; #define RI register int int read() { int q=0;char ch=' '; while(ch<'0'||ch>'9') ch=getchar(); while(ch>='0'&&ch<='9') q=q*10+ch-'0',ch=getchar(); return q; } const int N=100005; int n,tot,ans; int h[N],ne[N<<1],to[N<<1],f[N][22]; void add(int x,int y) {to[++tot]=y,ne[tot]=h[x],h[x]=tot;} void dfs(int x,int las) { for(RI i=h[x];i;i=ne[i]) { if(to[i]==las) continue; dfs(to[i],x); for(RI j=0;j<=20;++j) f[x][j]+=f[to[i]][j]; } int p=0; for(RI i=20;i>=0;--i) if(f[x][i]>=2) {p=i+1;break;} while(f[x][p]) ++p; ++f[x][p];for(RI i=0;i<p;++i) f[x][i]=0; ans=max(ans,p); } int main() { int x,y; n=read(); for(RI i=1;i<n;++i) x=read(),y=read(),add(x,y),add(y,x); dfs(1,0),printf("%d\n",ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Uninity |
User | litble |
Language | C++14 (GCC 5.4.1) |
Score | 1400 |
Code Size | 795 Byte |
Status | AC |
Exec Time | 25 ms |
Memory | 16512 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1400 / 1400 | ||||
Status |
|
|
Set Name | Test Cases |
---|---|
Sample | s1.txt, s2.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, 51.txt, 52.txt, 53.txt, 54.txt, 55.txt, 56.txt, 57.txt, 58.txt, 59.txt, 60.txt, 61.txt, 62.txt, 63.txt, 64.txt, 65.txt, 66.txt, 67.txt, 68.txt, 69.txt, 70.txt, 71.txt, 72.txt, s1.txt, s2.txt |
Case Name | Status | Exec Time | Memory |
---|---|---|---|
01.txt | AC | 21 ms | 10752 KB |
02.txt | AC | 21 ms | 10752 KB |
03.txt | AC | 21 ms | 10752 KB |
04.txt | AC | 21 ms | 10752 KB |
05.txt | AC | 21 ms | 10752 KB |
06.txt | AC | 21 ms | 10752 KB |
07.txt | AC | 21 ms | 10752 KB |
08.txt | AC | 21 ms | 10752 KB |
09.txt | AC | 16 ms | 11648 KB |
10.txt | AC | 17 ms | 13184 KB |
11.txt | AC | 9 ms | 8576 KB |
12.txt | AC | 9 ms | 8832 KB |
13.txt | AC | 25 ms | 16512 KB |
14.txt | AC | 23 ms | 16384 KB |
15.txt | AC | 24 ms | 15232 KB |
16.txt | AC | 23 ms | 12800 KB |
17.txt | AC | 17 ms | 10752 KB |
18.txt | AC | 18 ms | 10752 KB |
19.txt | AC | 18 ms | 10752 KB |
20.txt | AC | 18 ms | 10752 KB |
21.txt | AC | 19 ms | 10752 KB |
22.txt | AC | 19 ms | 10752 KB |
23.txt | AC | 18 ms | 10752 KB |
24.txt | AC | 18 ms | 10752 KB |
25.txt | AC | 19 ms | 10752 KB |
26.txt | AC | 20 ms | 10752 KB |
27.txt | AC | 20 ms | 10752 KB |
28.txt | AC | 21 ms | 10752 KB |
29.txt | AC | 20 ms | 10752 KB |
30.txt | AC | 21 ms | 10752 KB |
31.txt | AC | 21 ms | 10752 KB |
32.txt | AC | 21 ms | 10752 KB |
33.txt | AC | 21 ms | 10752 KB |
34.txt | AC | 21 ms | 10752 KB |
35.txt | AC | 21 ms | 10752 KB |
36.txt | AC | 21 ms | 10752 KB |
37.txt | AC | 22 ms | 10752 KB |
38.txt | AC | 22 ms | 10752 KB |
39.txt | AC | 22 ms | 10752 KB |
40.txt | AC | 21 ms | 10752 KB |
41.txt | AC | 21 ms | 10880 KB |
42.txt | AC | 22 ms | 10880 KB |
43.txt | AC | 22 ms | 10752 KB |
44.txt | AC | 20 ms | 10880 KB |
45.txt | AC | 20 ms | 10880 KB |
46.txt | AC | 21 ms | 10880 KB |
47.txt | AC | 21 ms | 10880 KB |
48.txt | AC | 21 ms | 10880 KB |
49.txt | AC | 21 ms | 10880 KB |
50.txt | AC | 21 ms | 11008 KB |
51.txt | AC | 22 ms | 11008 KB |
52.txt | AC | 22 ms | 10880 KB |
53.txt | AC | 22 ms | 10880 KB |
54.txt | AC | 23 ms | 11008 KB |
55.txt | AC | 22 ms | 10880 KB |
56.txt | AC | 18 ms | 10752 KB |
57.txt | AC | 22 ms | 14720 KB |
58.txt | AC | 23 ms | 14720 KB |
59.txt | AC | 22 ms | 11008 KB |
60.txt | AC | 22 ms | 11008 KB |
61.txt | AC | 20 ms | 12032 KB |
62.txt | AC | 20 ms | 12032 KB |
63.txt | AC | 2 ms | 2304 KB |
64.txt | AC | 1 ms | 2304 KB |
65.txt | AC | 1 ms | 2304 KB |
66.txt | AC | 1 ms | 2304 KB |
67.txt | AC | 1 ms | 2304 KB |
68.txt | AC | 1 ms | 2304 KB |
69.txt | AC | 1 ms | 2304 KB |
70.txt | AC | 2 ms | 2304 KB |
71.txt | AC | 1 ms | 2304 KB |
72.txt | AC | 1 ms | 2304 KB |
s1.txt | AC | 1 ms | 2304 KB |
s2.txt | AC | 2 ms | 2304 KB |