Submission #2198819
Source Code Expand
#include<algorithm> #include<bitset> #include<cassert> #include<cctype> #include<cerrno> #include<cfloat> #include<ciso646> #include<climits> #include<clocale> #include<cmath> #include<complex> #include<csetjmp> #include<csignal> #include<cstdarg> #include<cstddef> #include<cstdio> #include<cstdlib> #include<cstring> #include<ctime> #include<ctype.h> #include<cwchar> #include<cwctype> #include<deque> #include<exception> #include<fstream> #include<functional> #include<iomanip> #include<ios> #include<iosfwd> #include<iostream> #include<istream> #include<iterator> #include<limits> #include<list> #include<locale> #include<map> #include<math.h> #include<memory> #include<new> #include<numeric> #include<ostream> #include<queue> #include<set> #include<sstream> #include<stack> #include<stdexcept> #include<stdio.h> #include<stdlib.h> #include<streambuf> #include<string.h> #include<string> #include<typeinfo> #include<utility> #include<valarray> #include<vector> using namespace std; const int maxn=100010; vector<int> adj[maxn]; int dp[maxn]; int st[maxn]; int res; void dfs(int i,int fa){ int curst=0; int mn=0; for (int j=adj[i].size()-1;~j;--j){ int nxt=adj[i][j]; if (nxt==fa) continue; dfs(nxt,i); int nxst=st[nxt]; mn|=(curst&nxst); curst|=nxst; } for (int j=0;j<=20;++j){ if (!mn&&!(curst&(1<<j))){ dp[i]=j; st[i]=curst&(~((1<<j)-1)); st[i]|=(1<<j); break; } if (mn&(1<<j)) mn^=(1<<j); } if (res<dp[i]) res=dp[i]; } int main(void){ int n; scanf("%d",&n); for (int i=1;i<n;++i){ int u,v; scanf("%d%d",&u,&v); adj[u].push_back(v); adj[v].push_back(u); } dfs(1,-1); printf("%d",res); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Uninity |
User | Puredigital |
Language | C++ (GCC 5.4.1) |
Score | 1400 |
Code Size | 1749 Byte |
Status | AC |
Exec Time | 66 ms |
Memory | 12160 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:86:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&n); ^ ./Main.cpp:89:22: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&u,&v); ^
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 | 41 ms | 6656 KB |
02.txt | AC | 41 ms | 6656 KB |
03.txt | AC | 41 ms | 6656 KB |
04.txt | AC | 41 ms | 6656 KB |
05.txt | AC | 41 ms | 6656 KB |
06.txt | AC | 41 ms | 6656 KB |
07.txt | AC | 42 ms | 6656 KB |
08.txt | AC | 42 ms | 6656 KB |
09.txt | AC | 30 ms | 8192 KB |
10.txt | AC | 29 ms | 9728 KB |
11.txt | AC | 15 ms | 6016 KB |
12.txt | AC | 15 ms | 6272 KB |
13.txt | AC | 45 ms | 12160 KB |
14.txt | AC | 40 ms | 11648 KB |
15.txt | AC | 66 ms | 10880 KB |
16.txt | AC | 47 ms | 8448 KB |
17.txt | AC | 32 ms | 6904 KB |
18.txt | AC | 36 ms | 6900 KB |
19.txt | AC | 34 ms | 7168 KB |
20.txt | AC | 34 ms | 7040 KB |
21.txt | AC | 38 ms | 6912 KB |
22.txt | AC | 35 ms | 6912 KB |
23.txt | AC | 30 ms | 6904 KB |
24.txt | AC | 30 ms | 6904 KB |
25.txt | AC | 35 ms | 6780 KB |
26.txt | AC | 37 ms | 6784 KB |
27.txt | AC | 37 ms | 6784 KB |
28.txt | AC | 39 ms | 6784 KB |
29.txt | AC | 43 ms | 6784 KB |
30.txt | AC | 43 ms | 6784 KB |
31.txt | AC | 44 ms | 6784 KB |
32.txt | AC | 40 ms | 6656 KB |
33.txt | AC | 40 ms | 6656 KB |
34.txt | AC | 41 ms | 6656 KB |
35.txt | AC | 41 ms | 6656 KB |
36.txt | AC | 41 ms | 6656 KB |
37.txt | AC | 42 ms | 6656 KB |
38.txt | AC | 42 ms | 6528 KB |
39.txt | AC | 42 ms | 6528 KB |
40.txt | AC | 40 ms | 6656 KB |
41.txt | AC | 40 ms | 6656 KB |
42.txt | AC | 42 ms | 6528 KB |
43.txt | AC | 43 ms | 6528 KB |
44.txt | AC | 36 ms | 7040 KB |
45.txt | AC | 37 ms | 7168 KB |
46.txt | AC | 37 ms | 7040 KB |
47.txt | AC | 38 ms | 7040 KB |
48.txt | AC | 39 ms | 7040 KB |
49.txt | AC | 39 ms | 6912 KB |
50.txt | AC | 41 ms | 6784 KB |
51.txt | AC | 41 ms | 6784 KB |
52.txt | AC | 42 ms | 6656 KB |
53.txt | AC | 43 ms | 6656 KB |
54.txt | AC | 42 ms | 6656 KB |
55.txt | AC | 42 ms | 6656 KB |
56.txt | AC | 31 ms | 6904 KB |
57.txt | AC | 40 ms | 10620 KB |
58.txt | AC | 38 ms | 10620 KB |
59.txt | AC | 42 ms | 6656 KB |
60.txt | AC | 42 ms | 6656 KB |
61.txt | AC | 33 ms | 8056 KB |
62.txt | AC | 33 ms | 8184 KB |
63.txt | AC | 2 ms | 2560 KB |
64.txt | AC | 2 ms | 2560 KB |
65.txt | AC | 2 ms | 2560 KB |
66.txt | AC | 2 ms | 2560 KB |
67.txt | AC | 2 ms | 2560 KB |
68.txt | AC | 2 ms | 2560 KB |
69.txt | AC | 2 ms | 2560 KB |
70.txt | AC | 2 ms | 2560 KB |
71.txt | AC | 2 ms | 2560 KB |
72.txt | AC | 2 ms | 2560 KB |
s1.txt | AC | 2 ms | 2560 KB |
s2.txt | AC | 2 ms | 2560 KB |