| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 258882 |
2020-08-06T16:37:29 Z |
easrui |
Village (BOI20_village) |
C++14 |
|
112 ms |
14072 KB |
#include <bits/stdc++.h>
#define va first
#define vb second
#define all(x) (x).begin(), (x).end()
using namespace std;
typedef long long ll;
typedef pair<int,int> pii;
typedef pair<pii,int> ppi;
typedef pair<int,pii> pip;
const int MN = 1e5+5;
const int MOD = 1e9+7;
const int INF = 1e9;
ll sz[MN],N,min_ans,max_ans,cnt;
int pos[MN],ord[MN],vmin[MN],vmax[MN];
vector<int> G[MN];
bool vis[MN],done[MN];
void dfs(int s)
{
vis[s] = 1;
sz[s] = 1;
for(int e:G[s]){
if(vis[e]) continue;
dfs(e);
sz[s] += sz[e];
if(done[e]) continue;
else{
done[s] = 1;
swap(vmin[s],vmin[e]);
min_ans += 2;
}
}
if(s!=1) max_ans += min(sz[s],N-sz[s])*2;
else if(!done[s]){
swap(vmin[s],vmin[G[s][0]]);
min_ans += 2;
}
}
void get(int s, int p)
{
ord[++cnt] = s;
pos[s] = cnt;
for(int e:G[s]){
if(e==p) continue;
get(e,s);
}
}
int main()
{
ios_base::sync_with_stdio(0),cin.tie(0);
cin >> N;
for(int i=1; i<N; i++){
int s,e;
cin >> s >> e;
G[s].push_back(e);
G[e].push_back(s);
}
for(int i=1; i<=N; i++) vmin[i] = i;
dfs(1);
int s = 1, p = 0;
while(1){
bool ch = 0;
for(int e:G[s]){
if(e==p) continue;
if(sz[e]>N/2){
ch = 1;
p = s;
s = e;
break;
}
}
if(!ch) break;
}
ord[0] = s;
pos[s] = 0;
for(int e:G[s]) get(e,s);
for(int i=1; i<=N; i++){
vmax[i] = ord[(pos[i]+N/2)%N];
}
cout << min_ans << ' ' << max_ans << '\n';
for(int i=1; i<=N; i++) cout << vmin[i] << ' ';
cout << '\n';
for(int i=1; i<=N; i++) cout << vmax[i] << ' ';
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 9 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 17 |
Correct |
2 ms |
2688 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 7 |
Correct |
4 ms |
2816 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 9 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 10 |
Correct |
3 ms |
2816 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 17 |
Correct |
3 ms |
2816 KB |
Output is correct |
| 18 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 21 |
Correct |
3 ms |
2816 KB |
Output is correct |
| 22 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 23 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 24 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 25 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 26 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 27 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 28 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 29 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 30 |
Correct |
2 ms |
2816 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 2 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 3 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 4 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 5 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 6 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 7 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 8 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 9 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 10 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 11 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 12 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 13 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 15 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 16 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 17 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 18 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 19 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 20 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 21 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 22 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 23 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 24 |
Correct |
4 ms |
2816 KB |
Output is correct |
| 25 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 26 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 27 |
Correct |
3 ms |
2816 KB |
Output is correct |
| 28 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 29 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 30 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 31 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 32 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 33 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 34 |
Correct |
3 ms |
2816 KB |
Output is correct |
| 35 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 36 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 37 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 38 |
Correct |
3 ms |
2816 KB |
Output is correct |
| 39 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 40 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 41 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 42 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 43 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 44 |
Correct |
2 ms |
2688 KB |
Output is correct |
| 45 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 46 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 47 |
Correct |
2 ms |
2816 KB |
Output is correct |
| 48 |
Correct |
80 ms |
9164 KB |
Output is correct |
| 49 |
Correct |
73 ms |
9720 KB |
Output is correct |
| 50 |
Correct |
78 ms |
9720 KB |
Output is correct |
| 51 |
Correct |
56 ms |
8184 KB |
Output is correct |
| 52 |
Correct |
78 ms |
9592 KB |
Output is correct |
| 53 |
Correct |
77 ms |
9080 KB |
Output is correct |
| 54 |
Correct |
37 ms |
8184 KB |
Output is correct |
| 55 |
Correct |
100 ms |
14072 KB |
Output is correct |
| 56 |
Correct |
102 ms |
11772 KB |
Output is correct |
| 57 |
Correct |
88 ms |
11000 KB |
Output is correct |
| 58 |
Correct |
112 ms |
10304 KB |
Output is correct |
| 59 |
Correct |
110 ms |
9880 KB |
Output is correct |
| 60 |
Correct |
59 ms |
9836 KB |
Output is correct |
| 61 |
Correct |
62 ms |
9880 KB |
Output is correct |
| 62 |
Correct |
64 ms |
10104 KB |
Output is correct |
| 63 |
Correct |
59 ms |
9592 KB |
Output is correct |
| 64 |
Correct |
82 ms |
10104 KB |
Output is correct |
| 65 |
Correct |
74 ms |
10104 KB |
Output is correct |
| 66 |
Correct |
55 ms |
9592 KB |
Output is correct |
| 67 |
Correct |
43 ms |
8056 KB |
Output is correct |
| 68 |
Correct |
54 ms |
8952 KB |
Output is correct |
| 69 |
Correct |
64 ms |
10104 KB |
Output is correct |
| 70 |
Correct |
59 ms |
9720 KB |
Output is correct |
| 71 |
Correct |
42 ms |
7928 KB |
Output is correct |
| 72 |
Correct |
48 ms |
8568 KB |
Output is correct |
| 73 |
Correct |
63 ms |
10104 KB |
Output is correct |
| 74 |
Correct |
55 ms |
9464 KB |
Output is correct |
| 75 |
Correct |
85 ms |
9592 KB |
Output is correct |
| 76 |
Correct |
69 ms |
9592 KB |
Output is correct |
| 77 |
Correct |
64 ms |
9848 KB |
Output is correct |
| 78 |
Correct |
40 ms |
7424 KB |
Output is correct |
| 79 |
Correct |
49 ms |
8184 KB |
Output is correct |
| 80 |
Correct |
78 ms |
9592 KB |
Output is correct |
| 81 |
Correct |
67 ms |
9848 KB |
Output is correct |
| 82 |
Correct |
75 ms |
9980 KB |
Output is correct |
