Submission #2195066
Source Code Expand
#include<cstdio> #include<cstring> int n,x,y,hd[100001],cnt,d[100001],f[100001],t[200001],v[100001],num[21],fa[100001],mx; struct node { int to,next,ans; }e[200001]; void addedge(int x,int y) { e[++cnt].next=hd[x]; hd[x]=cnt; e[cnt].to=y; e[cnt].ans=0; } int calc(int x) {return ((x-1)^1)+1;} int getmax(int a,int b) {return a>b?a:b;} void dfs(int x) { for (int i=hd[x]; i; i=e[i].next) if (e[i].to!=fa[x]) fa[e[i].to]=x,dfs(e[i].to); memset(num,0,sizeof(num)); for (int i=hd[x]; i; i=e[i].next) if (e[i].to!=fa[x]) for (int j=0; j<21; j++) if ((f[e[i].to]>>j)&1) num[j]++; mx=-1; for (int i=20; i>=0; i--) if (num[i]>1) {mx=i; break;} v[x]=mx+1; while (num[v[x]]) v[x]++; f[x]=(1<<v[x]); for (int i=v[x]+1; i<=20; i++) if (num[i]) f[x]|=(1<<i); } int main() { scanf("%d",&n); cnt=0; memset(hd,0,sizeof(hd)); memset(d,0,sizeof(d)); for (int i=1; i<n; i++) scanf("%d%d",&x,&y),addedge(x,y),addedge(y,x),d[x]++,d[y]++; memset(f,0,sizeof(f)); memset(fa,0,sizeof(fa)); dfs(1); mx=0; for (int i=1; i<=n; i++) mx=getmax(mx,v[i]); printf("%d\n",mx); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Uninity |
User | panole |
Language | C++14 (GCC 5.4.1) |
Score | 1400 |
Code Size | 1157 Byte |
Status | AC |
Exec Time | 47 ms |
Memory | 7552 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:43:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); cnt=0; ^ ./Main.cpp:47:62: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y),addedge(x,y),addedge(y,x),d[x]++,d[y]++; ^
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1400 / 1400 | ||||
Status |
|
|
Set Name | Test Cases |
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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 | 37 ms | 5248 KB |
02.txt | AC | 37 ms | 5248 KB |
03.txt | AC | 37 ms | 5248 KB |
04.txt | AC | 38 ms | 5248 KB |
05.txt | AC | 36 ms | 5248 KB |
06.txt | AC | 37 ms | 5248 KB |
07.txt | AC | 37 ms | 5248 KB |
08.txt | AC | 37 ms | 5248 KB |
09.txt | AC | 32 ms | 6016 KB |
10.txt | AC | 30 ms | 6528 KB |
11.txt | AC | 15 ms | 4864 KB |
12.txt | AC | 15 ms | 4992 KB |
13.txt | AC | 47 ms | 7552 KB |
14.txt | AC | 43 ms | 7424 KB |
15.txt | AC | 46 ms | 7040 KB |
16.txt | AC | 42 ms | 6016 KB |
17.txt | AC | 30 ms | 5248 KB |
18.txt | AC | 29 ms | 5248 KB |
19.txt | AC | 29 ms | 5376 KB |
20.txt | AC | 30 ms | 5248 KB |
21.txt | AC | 31 ms | 5248 KB |
22.txt | AC | 31 ms | 5248 KB |
23.txt | AC | 29 ms | 5248 KB |
24.txt | AC | 29 ms | 5248 KB |
25.txt | AC | 34 ms | 5248 KB |
26.txt | AC | 34 ms | 5248 KB |
27.txt | AC | 33 ms | 5248 KB |
28.txt | AC | 35 ms | 5248 KB |
29.txt | AC | 34 ms | 5248 KB |
30.txt | AC | 36 ms | 5248 KB |
31.txt | AC | 35 ms | 5248 KB |
32.txt | AC | 37 ms | 5248 KB |
33.txt | AC | 37 ms | 5248 KB |
34.txt | AC | 38 ms | 5248 KB |
35.txt | AC | 36 ms | 5248 KB |
36.txt | AC | 37 ms | 5248 KB |
37.txt | AC | 36 ms | 5248 KB |
38.txt | AC | 36 ms | 5248 KB |
39.txt | AC | 37 ms | 5248 KB |
40.txt | AC | 36 ms | 5248 KB |
41.txt | AC | 38 ms | 5248 KB |
42.txt | AC | 38 ms | 5248 KB |
43.txt | AC | 37 ms | 5248 KB |
44.txt | AC | 34 ms | 5248 KB |
45.txt | AC | 32 ms | 5248 KB |
46.txt | AC | 33 ms | 5248 KB |
47.txt | AC | 33 ms | 5248 KB |
48.txt | AC | 36 ms | 5248 KB |
49.txt | AC | 35 ms | 5248 KB |
50.txt | AC | 38 ms | 5248 KB |
51.txt | AC | 39 ms | 5248 KB |
52.txt | AC | 42 ms | 5248 KB |
53.txt | AC | 40 ms | 5248 KB |
54.txt | AC | 41 ms | 5248 KB |
55.txt | AC | 40 ms | 5248 KB |
56.txt | AC | 29 ms | 5248 KB |
57.txt | AC | 37 ms | 6784 KB |
58.txt | AC | 38 ms | 6784 KB |
59.txt | AC | 44 ms | 5248 KB |
60.txt | AC | 44 ms | 5248 KB |
61.txt | AC | 32 ms | 5760 KB |
62.txt | AC | 32 ms | 5760 KB |
63.txt | AC | 1 ms | 3200 KB |
64.txt | AC | 1 ms | 3200 KB |
65.txt | AC | 1 ms | 3200 KB |
66.txt | AC | 1 ms | 3200 KB |
67.txt | AC | 1 ms | 3200 KB |
68.txt | AC | 1 ms | 3200 KB |
69.txt | AC | 1 ms | 3200 KB |
70.txt | AC | 1 ms | 3200 KB |
71.txt | AC | 1 ms | 3200 KB |
72.txt | AC | 1 ms | 3200 KB |
s1.txt | AC | 1 ms | 3200 KB |
s2.txt | AC | 1 ms | 3200 KB |