Submission #1163863
Source Code Expand
#include <iostream> #include <vector> #define REP(i,s,n) for(int i=(int)(s);i<(int)(n);i++) using namespace std; typedef long long int ll; typedef vector<int> VI; typedef vector<ll> VL; const int N = 100100; VI edges[N]; ll dp[N]; void dfs(int v, int par) { VL ch; ll orl = 0; for (auto w: edges[v]) { if (w == par) { continue; } dfs(w, v); ch.push_back(dp[w]); orl |= dp[w]; } vector<int> hb(64); REP(b, 0, 64) { int cnt = 0; for (ll t: ch) { if (t & (1LL << b)) { cnt += 1; } } hb[b] = cnt; } int c = 0; REP(b, 0, 64) { if (hb[b] >= 2) { c = b + 1; } } int t = -1; REP(b, c, 64) { if (hb[b] == 0) { t = b; break; } } ll mask = 1LL << t; dp[v] = (orl & ~(mask - 1)) | mask; } // This was implemented after the author read the editorial. int main(void){ int n; cin >> n; REP(i, 0, n - 1) { int a, b; cin >> a >> b; a--, b--; edges[a].push_back(b); edges[b].push_back(a); } dfs(0, -1); int b = 0; REP(i, 0, 64) { if (dp[0] & 1LL << i) { b = i; } } cout << b << endl; }
Submission Info
Submission Time | |
---|---|
Task | D - Uninity |
User | kobae964 |
Language | C++14 (GCC 5.4.1) |
Score | 1400 |
Code Size | 1135 Byte |
Status | AC |
Exec Time | 120 ms |
Memory | 14464 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 | 107 ms | 6656 KB |
02.txt | AC | 107 ms | 6656 KB |
03.txt | AC | 108 ms | 6656 KB |
04.txt | AC | 106 ms | 6656 KB |
05.txt | AC | 107 ms | 6656 KB |
06.txt | AC | 106 ms | 6656 KB |
07.txt | AC | 106 ms | 6656 KB |
08.txt | AC | 106 ms | 6656 KB |
09.txt | AC | 72 ms | 9472 KB |
10.txt | AC | 75 ms | 11648 KB |
11.txt | AC | 36 ms | 6912 KB |
12.txt | AC | 37 ms | 7296 KB |
13.txt | AC | 111 ms | 14464 KB |
14.txt | AC | 106 ms | 13952 KB |
15.txt | AC | 115 ms | 12928 KB |
16.txt | AC | 116 ms | 9408 KB |
17.txt | AC | 97 ms | 7724 KB |
18.txt | AC | 98 ms | 7796 KB |
19.txt | AC | 101 ms | 7552 KB |
20.txt | AC | 99 ms | 7600 KB |
21.txt | AC | 99 ms | 7212 KB |
22.txt | AC | 99 ms | 7280 KB |
23.txt | AC | 93 ms | 8056 KB |
24.txt | AC | 94 ms | 8056 KB |
25.txt | AC | 102 ms | 7420 KB |
26.txt | AC | 105 ms | 6784 KB |
27.txt | AC | 104 ms | 6784 KB |
28.txt | AC | 107 ms | 6784 KB |
29.txt | AC | 109 ms | 6784 KB |
30.txt | AC | 120 ms | 6784 KB |
31.txt | AC | 120 ms | 6784 KB |
32.txt | AC | 117 ms | 6656 KB |
33.txt | AC | 113 ms | 7680 KB |
34.txt | AC | 112 ms | 6656 KB |
35.txt | AC | 107 ms | 6656 KB |
36.txt | AC | 115 ms | 6656 KB |
37.txt | AC | 112 ms | 6656 KB |
38.txt | AC | 109 ms | 6528 KB |
39.txt | AC | 114 ms | 6528 KB |
40.txt | AC | 118 ms | 6656 KB |
41.txt | AC | 106 ms | 6656 KB |
42.txt | AC | 107 ms | 6528 KB |
43.txt | AC | 107 ms | 6528 KB |
44.txt | AC | 101 ms | 7168 KB |
45.txt | AC | 103 ms | 7168 KB |
46.txt | AC | 106 ms | 7168 KB |
47.txt | AC | 103 ms | 7168 KB |
48.txt | AC | 106 ms | 7040 KB |
49.txt | AC | 108 ms | 7040 KB |
50.txt | AC | 107 ms | 6912 KB |
51.txt | AC | 111 ms | 6912 KB |
52.txt | AC | 107 ms | 6656 KB |
53.txt | AC | 116 ms | 6784 KB |
54.txt | AC | 112 ms | 6784 KB |
55.txt | AC | 107 ms | 6784 KB |
56.txt | AC | 94 ms | 8056 KB |
57.txt | AC | 109 ms | 12924 KB |
58.txt | AC | 109 ms | 12792 KB |
59.txt | AC | 107 ms | 6784 KB |
60.txt | AC | 108 ms | 6784 KB |
61.txt | AC | 101 ms | 9592 KB |
62.txt | AC | 98 ms | 9592 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 |