답안 #638420

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
638420	2022-09-05T22:05:03 Z	xad	Network (BOI15_net)	C++14	100 / 100	553 ms	63100 KB

#include <bits/stdc++.h>
using namespace std ;
#define nn "\n"
#define x_x ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define intt int t; cin>>t; while(t--)
#define emp emplace_back
#define mod 1000000007
#define all(v) v.begin(), v.end()
#define sz(x) (int)x.size()
//#define a first
//#define b second
typedef long long ll;
vector<int>v;
void dfs(int i, int p, vector<int>adj[])
{
    if(sz(adj[i])==1){v.emp(i); return ;}
    for(auto j:adj[i])
        if(j!=p)dfs(j,i,adj);
}
void mxx(int i, int p, vector<int>adj[], int&ind ,int&mx, int dis=0)
{
    if(sz(adj[i])==1&&i!=ind)
    {
        if(dis>mx)ind=i,mx=dis; return ;
    }
    for(auto j:adj[i])
        if(j!=p)mxx(j,i,adj, ind, mx, dis+1);
}
int main()
{

    x_x
int n; cin>>n; vector<int>adj[n+2]; for(int i=1,x,y; i<n;i++)cin>>x>>y, adj[x].emp(y), adj[y].emp(x);
int mx=0,ind=1;
for(int i=1; i<=n; i++)if(sz(adj[i])>mx)mx=sz(adj[i]), ind=i;

dfs(ind,0,adj);
cout<<(sz(v)+1)/2<<nn;
for(int i=0; i<sz(v)/2; i++)cout<<v[i]<<' '<<v[i+(sz(v)/2)]<<nn;
if(sz(v)%2)
{
  ind=mx=0;  cout<<v.back()<<' '; ind=v.back(); mxx(v.back(),0,adj,ind,mx); cout<<ind;
}
return 0;
}

Compilation message

net.cpp: In function 'void mxx(int, int, std::vector<int>*, int&, int&, int)':
net.cpp:24:9: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   24 |         if(dis>mx)ind=i,mx=dis; return ;
      |         ^~
net.cpp:24:33: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   24 |         if(dis>mx)ind=i,mx=dis; return ;
      |                                 ^~~~~~

Subtask #1
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	320 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	324 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	324 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	316 KB	Output is correct
19	Correct	0 ms	320 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct

Subtask #2
45.0 / 45.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	320 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	324 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	324 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	316 KB	Output is correct
19	Correct	0 ms	320 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	468 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	460 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	1 ms	416 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	1 ms	212 KB	Output is correct
35	Correct	0 ms	324 KB	Output is correct
36	Correct	0 ms	312 KB	Output is correct
37	Correct	0 ms	340 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	1 ms	212 KB	Output is correct
41	Correct	0 ms	212 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	1 ms	212 KB	Output is correct
45	Correct	1 ms	320 KB	Output is correct
46	Correct	1 ms	340 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	1 ms	340 KB	Output is correct
49	Correct	1 ms	328 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	0 ms	212 KB	Output is correct
52	Correct	0 ms	340 KB	Output is correct
53	Correct	1 ms	340 KB	Output is correct
54	Correct	0 ms	212 KB	Output is correct
55	Correct	1 ms	340 KB	Output is correct
56	Correct	1 ms	320 KB	Output is correct
57	Correct	1 ms	340 KB	Output is correct
58	Correct	1 ms	468 KB	Output is correct

Subtask #3
37.0 / 37.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	320 KB	Output is correct
2	Correct	1 ms	212 KB	Output is correct
3	Correct	0 ms	212 KB	Output is correct
4	Correct	0 ms	324 KB	Output is correct
5	Correct	0 ms	212 KB	Output is correct
6	Correct	1 ms	212 KB	Output is correct
7	Correct	1 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	1 ms	212 KB	Output is correct
10	Correct	0 ms	212 KB	Output is correct
11	Correct	0 ms	212 KB	Output is correct
12	Correct	0 ms	212 KB	Output is correct
13	Correct	1 ms	324 KB	Output is correct
14	Correct	0 ms	212 KB	Output is correct
15	Correct	0 ms	212 KB	Output is correct
16	Correct	0 ms	212 KB	Output is correct
17	Correct	0 ms	212 KB	Output is correct
18	Correct	0 ms	316 KB	Output is correct
19	Correct	0 ms	320 KB	Output is correct
20	Correct	1 ms	212 KB	Output is correct
21	Correct	0 ms	212 KB	Output is correct
22	Correct	1 ms	468 KB	Output is correct
23	Correct	1 ms	468 KB	Output is correct
24	Correct	1 ms	468 KB	Output is correct
25	Correct	1 ms	340 KB	Output is correct
26	Correct	1 ms	340 KB	Output is correct
27	Correct	1 ms	460 KB	Output is correct
28	Correct	1 ms	468 KB	Output is correct
29	Correct	1 ms	340 KB	Output is correct
30	Correct	0 ms	212 KB	Output is correct
31	Correct	1 ms	416 KB	Output is correct
32	Correct	1 ms	212 KB	Output is correct
33	Correct	1 ms	212 KB	Output is correct
34	Correct	1 ms	212 KB	Output is correct
35	Correct	0 ms	324 KB	Output is correct
36	Correct	0 ms	312 KB	Output is correct
37	Correct	0 ms	340 KB	Output is correct
38	Correct	1 ms	340 KB	Output is correct
39	Correct	0 ms	212 KB	Output is correct
40	Correct	1 ms	212 KB	Output is correct
41	Correct	0 ms	212 KB	Output is correct
42	Correct	1 ms	340 KB	Output is correct
43	Correct	1 ms	340 KB	Output is correct
44	Correct	1 ms	212 KB	Output is correct
45	Correct	1 ms	320 KB	Output is correct
46	Correct	1 ms	340 KB	Output is correct
47	Correct	0 ms	212 KB	Output is correct
48	Correct	1 ms	340 KB	Output is correct
49	Correct	1 ms	328 KB	Output is correct
50	Correct	1 ms	212 KB	Output is correct
51	Correct	0 ms	212 KB	Output is correct
52	Correct	0 ms	340 KB	Output is correct
53	Correct	1 ms	340 KB	Output is correct
54	Correct	0 ms	212 KB	Output is correct
55	Correct	1 ms	340 KB	Output is correct
56	Correct	1 ms	320 KB	Output is correct
57	Correct	1 ms	340 KB	Output is correct
58	Correct	1 ms	468 KB	Output is correct
59	Correct	270 ms	34792 KB	Output is correct
60	Correct	380 ms	38764 KB	Output is correct
61	Correct	0 ms	324 KB	Output is correct
62	Correct	1 ms	212 KB	Output is correct
63	Correct	270 ms	31208 KB	Output is correct
64	Correct	2 ms	852 KB	Output is correct
65	Correct	12 ms	2788 KB	Output is correct
66	Correct	107 ms	19000 KB	Output is correct
67	Correct	384 ms	51136 KB	Output is correct
68	Correct	394 ms	63100 KB	Output is correct
69	Correct	6 ms	1468 KB	Output is correct
70	Correct	64 ms	13252 KB	Output is correct
71	Correct	250 ms	41880 KB	Output is correct
72	Correct	262 ms	40660 KB	Output is correct
73	Correct	70 ms	10612 KB	Output is correct
74	Correct	332 ms	37696 KB	Output is correct
75	Correct	18 ms	4820 KB	Output is correct
76	Correct	240 ms	41568 KB	Output is correct
77	Correct	234 ms	41596 KB	Output is correct
78	Correct	23 ms	5964 KB	Output is correct
79	Correct	553 ms	60408 KB	Output is correct
80	Correct	2 ms	596 KB	Output is correct
81	Correct	74 ms	13496 KB	Output is correct
82	Correct	334 ms	39584 KB	Output is correct
83	Correct	373 ms	37700 KB	Output is correct
84	Correct	344 ms	37612 KB	Output is correct
85	Correct	340 ms	37708 KB	Output is correct
86	Correct	367 ms	38788 KB	Output is correct
87	Correct	354 ms	38760 KB	Output is correct

답안 #638420

Compilation message

Subtask #1 18.0 / 18.0

Subtask #2 45.0 / 45.0

Subtask #3 37.0 / 37.0

Subtask #1
18.0 / 18.0

Subtask #2
45.0 / 45.0

Subtask #3
37.0 / 37.0