Submission #1774640
Source Code Expand
#include <bits/stdc++.h> using namespace std; struct Edge { int to, nxt; }; Edge e[200010]; int head[200010], cnt; const int LG = 65; int dp[200010][LG + 2]; void add_edge(int a, int b) { e[++cnt].to = b; e[cnt].nxt = head[a]; head[a] = cnt; } void dfs(int nod, int tata) { for (int i = head[nod]; i; i = e[i].nxt) { int v = e[i].to; if (v == tata) continue; dfs(v, nod); for (int j(1); j <= LG; j++) dp[nod][j] += dp[v][j]; } int bigg0(1); for (int i(1); i <= LG; i++) { if (dp[nod][i] <= 1) continue; int p(i); while (dp[nod][p]) p++; dp[nod][p] = 1; for (int j(bigg0); j < p; j++) dp[nod][j] = 0; bigg0 = p; } int p(1); while (dp[nod][p]) p++; dp[nod][p] = 1; for (int i(1); i < p; i++) dp[nod][i] = 0; } int main() { int n, a, b; scanf("%d", &n); while (--n) { scanf("%d%d", &a, &b); add_edge(a, b); add_edge(b, a); } dfs(1, 0); for (int i(LG); i >= 0; i--) { if (dp[1][i]) { printf("%d\n", i - 1); return 0; } } return 0; }
Submission Info
Submission Time | |
---|---|
Task | D - Uninity |
User | teomrn |
Language | C++14 (GCC 5.4.1) |
Score | 0 |
Code Size | 1312 Byte |
Status | WA |
Exec Time | 66 ms |
Memory | 36096 KB |
Compile Error
./Main.cpp: In function ‘int main()’: ./Main.cpp:54:20: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d", &n); ^ ./Main.cpp:57:30: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &a, &b); ^
Judge Result
Set Name | Sample | All | ||||||
---|---|---|---|---|---|---|---|---|
Score / Max Score | 0 / 0 | 0 / 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 | 53 ms | 30336 KB |
02.txt | AC | 57 ms | 30336 KB |
03.txt | AC | 56 ms | 30336 KB |
04.txt | AC | 57 ms | 30336 KB |
05.txt | AC | 57 ms | 30336 KB |
06.txt | AC | 53 ms | 30336 KB |
07.txt | AC | 56 ms | 30336 KB |
08.txt | AC | 56 ms | 30336 KB |
09.txt | AC | 34 ms | 24704 KB |
10.txt | AC | 40 ms | 26240 KB |
11.txt | AC | 18 ms | 15104 KB |
12.txt | AC | 18 ms | 15360 KB |
13.txt | AC | 65 ms | 36096 KB |
14.txt | AC | 59 ms | 33792 KB |
15.txt | AC | 66 ms | 34688 KB |
16.txt | AC | 59 ms | 32256 KB |
17.txt | AC | 50 ms | 30336 KB |
18.txt | WA | 50 ms | 30336 KB |
19.txt | AC | 51 ms | 30336 KB |
20.txt | AC | 52 ms | 30336 KB |
21.txt | AC | 51 ms | 30336 KB |
22.txt | AC | 53 ms | 30336 KB |
23.txt | WA | 49 ms | 30336 KB |
24.txt | WA | 48 ms | 30336 KB |
25.txt | WA | 50 ms | 30336 KB |
26.txt | WA | 53 ms | 30336 KB |
27.txt | WA | 52 ms | 30336 KB |
28.txt | WA | 52 ms | 30336 KB |
29.txt | WA | 55 ms | 30336 KB |
30.txt | WA | 57 ms | 30336 KB |
31.txt | WA | 54 ms | 30336 KB |
32.txt | WA | 53 ms | 30336 KB |
33.txt | AC | 53 ms | 30336 KB |
34.txt | WA | 53 ms | 30336 KB |
35.txt | AC | 53 ms | 30336 KB |
36.txt | WA | 53 ms | 30336 KB |
37.txt | WA | 53 ms | 30336 KB |
38.txt | WA | 53 ms | 30336 KB |
39.txt | WA | 55 ms | 30336 KB |
40.txt | WA | 55 ms | 30336 KB |
41.txt | AC | 55 ms | 30336 KB |
42.txt | WA | 58 ms | 30336 KB |
43.txt | WA | 57 ms | 30336 KB |
44.txt | WA | 55 ms | 30464 KB |
45.txt | WA | 55 ms | 30464 KB |
46.txt | WA | 53 ms | 30464 KB |
47.txt | WA | 54 ms | 30464 KB |
48.txt | WA | 55 ms | 30464 KB |
49.txt | WA | 57 ms | 30464 KB |
50.txt | AC | 55 ms | 30464 KB |
51.txt | AC | 54 ms | 30464 KB |
52.txt | AC | 55 ms | 30464 KB |
53.txt | AC | 55 ms | 30464 KB |
54.txt | AC | 56 ms | 30592 KB |
55.txt | AC | 55 ms | 30464 KB |
56.txt | AC | 54 ms | 30336 KB |
57.txt | AC | 57 ms | 34304 KB |
58.txt | AC | 61 ms | 34304 KB |
59.txt | AC | 58 ms | 30464 KB |
60.txt | AC | 59 ms | 30464 KB |
61.txt | AC | 53 ms | 31616 KB |
62.txt | AC | 57 ms | 31616 KB |
63.txt | WA | 2 ms | 2304 KB |
64.txt | WA | 2 ms | 2304 KB |
65.txt | AC | 2 ms | 2304 KB |
66.txt | AC | 2 ms | 2304 KB |
67.txt | WA | 2 ms | 2304 KB |
68.txt | AC | 2 ms | 2304 KB |
69.txt | AC | 2 ms | 2304 KB |
70.txt | AC | 2 ms | 2304 KB |
71.txt | AC | 2 ms | 2304 KB |
72.txt | AC | 2 ms | 2304 KB |
s1.txt | AC | 2 ms | 2304 KB |
s2.txt | AC | 2 ms | 2304 KB |