Submission #1754522
Source Code Expand
#include<bits/stdc++.h> using namespace std; const int MAXN = 100010; inline int read() { int x = 0, f = 1; char ch = getchar(); for(; !isdigit(ch); ch = getchar()) if(ch=='-') f=-1; for(; isdigit(ch); ch = getchar()) x = (x*10)+(ch^48); return x * f; } int e, st[MAXN], to[MAXN<<1]; int nxt[MAXN<<1], l[MAXN][20]; inline void Add(int u, int v) { to[++e] = v, nxt[e] = st[u]; st[u] = e; } int n, ans; void dfs(int u, int fa) { int i, j; for(i = st[u]; i; i = nxt[i]) { int v = to[i]; if(v == fa) continue; dfs(v, u); for(j = 0; j < 20; j++) l[u][j] += l[v][j]; } int loc = -1; for(j = 0; j < 20; j++) if(l[u][j] >= 2) loc = j; for(j = loc+1; j < 20; j++) if(!l[u][j]) break; loc = j; ans = max(ans, loc); l[u][loc] = 1; for(j = 0; j < loc; j++) l[u][j] = 0; } int main() { int i; n = read(); for(i = 1; i < n; i++) { int u = read(), v = read(); Add(u, v), Add(v, u); } dfs(1, 0); printf("%d\n", ans); return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Uninity |
User | Sunshine_cfbsl |
Language | C++14 (GCC 5.4.1) |
Score | 1400 |
Code Size | 1013 Byte |
Status | AC |
Exec Time | 26 ms |
Memory | 15744 KB |
Judge Result
Set Name | Sample | All | ||||
---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 1400 / 1400 | ||||
Status |
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|
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 | 23 ms | 9984 KB |
02.txt | AC | 22 ms | 9984 KB |
03.txt | AC | 22 ms | 9984 KB |
04.txt | AC | 22 ms | 9984 KB |
05.txt | AC | 22 ms | 9984 KB |
06.txt | AC | 23 ms | 9984 KB |
07.txt | AC | 22 ms | 9984 KB |
08.txt | AC | 22 ms | 9984 KB |
09.txt | AC | 17 ms | 12416 KB |
10.txt | AC | 17 ms | 13952 KB |
11.txt | AC | 10 ms | 8960 KB |
12.txt | AC | 10 ms | 9216 KB |
13.txt | AC | 26 ms | 15744 KB |
14.txt | AC | 24 ms | 15360 KB |
15.txt | AC | 25 ms | 14464 KB |
16.txt | AC | 24 ms | 11904 KB |
17.txt | AC | 18 ms | 9984 KB |
18.txt | AC | 18 ms | 9984 KB |
19.txt | AC | 19 ms | 9984 KB |
20.txt | AC | 20 ms | 9984 KB |
21.txt | AC | 21 ms | 9984 KB |
22.txt | AC | 20 ms | 9984 KB |
23.txt | AC | 19 ms | 9984 KB |
24.txt | AC | 17 ms | 9984 KB |
25.txt | AC | 20 ms | 9984 KB |
26.txt | AC | 20 ms | 9984 KB |
27.txt | AC | 21 ms | 9984 KB |
28.txt | AC | 21 ms | 9984 KB |
29.txt | AC | 22 ms | 9984 KB |
30.txt | AC | 22 ms | 9984 KB |
31.txt | AC | 22 ms | 9984 KB |
32.txt | AC | 22 ms | 9984 KB |
33.txt | AC | 23 ms | 9984 KB |
34.txt | AC | 22 ms | 9984 KB |
35.txt | AC | 22 ms | 9984 KB |
36.txt | AC | 22 ms | 9984 KB |
37.txt | AC | 22 ms | 9984 KB |
38.txt | AC | 22 ms | 9984 KB |
39.txt | AC | 22 ms | 9984 KB |
40.txt | AC | 23 ms | 9984 KB |
41.txt | AC | 21 ms | 10112 KB |
42.txt | AC | 24 ms | 9984 KB |
43.txt | AC | 22 ms | 9984 KB |
44.txt | AC | 22 ms | 10112 KB |
45.txt | AC | 21 ms | 10112 KB |
46.txt | AC | 21 ms | 10112 KB |
47.txt | AC | 21 ms | 10112 KB |
48.txt | AC | 23 ms | 10112 KB |
49.txt | AC | 22 ms | 10112 KB |
50.txt | AC | 24 ms | 10112 KB |
51.txt | AC | 22 ms | 10112 KB |
52.txt | AC | 22 ms | 10112 KB |
53.txt | AC | 24 ms | 10112 KB |
54.txt | AC | 22 ms | 10240 KB |
55.txt | AC | 22 ms | 10112 KB |
56.txt | AC | 17 ms | 9984 KB |
57.txt | AC | 22 ms | 13952 KB |
58.txt | AC | 22 ms | 13952 KB |
59.txt | AC | 23 ms | 10112 KB |
60.txt | AC | 22 ms | 10112 KB |
61.txt | AC | 19 ms | 11264 KB |
62.txt | AC | 21 ms | 11264 KB |
63.txt | AC | 1 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 | 1 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 | 1 ms | 2304 KB |