| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1042080 |
2024-08-02T14:11:01 Z |
pcc |
Meetings 2 (JOI21_meetings2) |
C++17 |
|
441 ms |
34424 KB |
#include <bits/stdc++.h>
using namespace std;
const int mxn = 4e5+10;
vector<int> tree[mxn];
bitset<mxn> del;
int sz[mxn],dep[mxn];
int N;
int ans[mxn];
struct BIT{
int bit[mxn];
int s;
void resize(int n){
s = n;
fill(bit,bit+s+1,-mxn);
}
void modify(int p,int v){
p = s-p;
assert(p>0);
for(;p<s;p+=p&-p)bit[p] = max(bit[p],v);
}
int getval(int p){
p = s-p;
int re = -mxn;
for(;p>0;p-= p&-p)re = max(re,bit[p]);
return re;
}
};
BIT bit;
void szdfs(int now,int par){
sz[now] = 1;
for(auto nxt:tree[now]){
if(nxt == par||del[nxt])continue;
szdfs(nxt,now);
sz[now] += sz[nxt];
}
return;
}
int find_centroid(int now,int par,int tar){
for(auto nxt:tree[now]){
if(nxt == par||del[nxt])continue;
if(sz[nxt]>tar)return find_centroid(nxt,now,tar);
}
return now;
}
void dfs(int now,int par,int psz){
if(now == par)dep[now] = 1;
for(auto nxt:tree[now]){
if(nxt == par||del[nxt])continue;
dep[nxt] = dep[now]+1;
dfs(nxt,now,psz);
}
int pos = sz[now];
ans[pos*2] = max(ans[pos*2],dep[now]+bit.getval(pos)+1);
ans[min(psz,pos)*2] = max(ans[min(psz,pos)*2],dep[now]+1);
return;
}
void dfs2(int now,int par){
bit.modify(sz[now],dep[now]);
for(auto nxt:tree[now]){
if(nxt == par||del[nxt])continue;
dfs2(nxt,now);
}
return;
}
void cd(int now,int par){
dep[now] = 0;
szdfs(now,now);
bit.resize(sz[now]+3);
now = find_centroid(now,now,(sz[now]-1)>>1);
szdfs(now,now);
del[now] = true;
for(auto nxt:tree[now]){
if(del[nxt])continue;
dep[nxt] = 1;
dfs(nxt,nxt,N-sz[nxt]);
dfs2(nxt,nxt);
}
bit.resize(sz[now]+3);
for(auto it = tree[now].rbegin();it != tree[now].rend();it++){
int nxt = *it;
if(del[nxt])continue;
dep[nxt] = 1;
dfs(nxt,nxt,N-sz[nxt]);
dfs2(nxt,nxt);
}
for(auto nxt:tree[now]){
if(!del[nxt])cd(nxt,now);
}
return;
}
int main(){
ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
cin>>N;
fill(ans,ans+N+1,1);
for(int i = 1;i<N;i++){
int a,b;
cin>>a>>b;
tree[a].push_back(b);
tree[b].push_back(a);
}
cd(1,1);
for(int i = N;i>=1;i--)ans[i] = max(ans[i],ans[i+1]);
for(int i = 1;i<=N;i+=2)ans[i] = 1;
for(int i = 1;i<=N;i++)cout<<ans[i]<<'\n';
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 2 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 3 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 4 |
Correct |
2 ms |
15800 KB |
Output is correct |
| 5 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 6 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 7 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 8 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 9 |
Correct |
3 ms |
15964 KB |
Output is correct |
| 10 |
Correct |
2 ms |
15756 KB |
Output is correct |
| 11 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 12 |
Correct |
2 ms |
15780 KB |
Output is correct |
| 13 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 14 |
Correct |
2 ms |
15960 KB |
Output is correct |
| 15 |
Correct |
3 ms |
15960 KB |
Output is correct |
| 16 |
Correct |
3 ms |
15960 KB |
Output is correct |
| 17 |
Correct |
3 ms |
15960 KB |
Output is correct |
| 18 |
Correct |
2 ms |
15960 KB |
Output is correct |
| 19 |
Correct |
2 ms |
15984 KB |
Output is correct |
| 20 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 21 |
Correct |
2 ms |
15964 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 2 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 3 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 4 |
Correct |
2 ms |
15800 KB |
Output is correct |
| 5 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 6 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 7 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 8 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 9 |
Correct |
3 ms |
15964 KB |
Output is correct |
| 10 |
Correct |
2 ms |
15756 KB |
Output is correct |
| 11 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 12 |
Correct |
2 ms |
15780 KB |
Output is correct |
| 13 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 14 |
Correct |
2 ms |
15960 KB |
Output is correct |
| 15 |
Correct |
3 ms |
15960 KB |
Output is correct |
| 16 |
Correct |
3 ms |
15960 KB |
Output is correct |
| 17 |
Correct |
3 ms |
15960 KB |
Output is correct |
| 18 |
Correct |
2 ms |
15960 KB |
Output is correct |
| 19 |
Correct |
2 ms |
15984 KB |
Output is correct |
| 20 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 21 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 22 |
Correct |
5 ms |
15964 KB |
Output is correct |
| 23 |
Correct |
4 ms |
15964 KB |
Output is correct |
| 24 |
Correct |
5 ms |
15964 KB |
Output is correct |
| 25 |
Correct |
4 ms |
15964 KB |
Output is correct |
| 26 |
Correct |
5 ms |
16080 KB |
Output is correct |
| 27 |
Correct |
5 ms |
15960 KB |
Output is correct |
| 28 |
Correct |
5 ms |
15964 KB |
Output is correct |
| 29 |
Correct |
4 ms |
15964 KB |
Output is correct |
| 30 |
Correct |
4 ms |
16172 KB |
Output is correct |
| 31 |
Correct |
4 ms |
15964 KB |
Output is correct |
| 32 |
Correct |
5 ms |
16220 KB |
Output is correct |
| 33 |
Correct |
5 ms |
16220 KB |
Output is correct |
| 34 |
Correct |
3 ms |
15964 KB |
Output is correct |
| 35 |
Correct |
4 ms |
15992 KB |
Output is correct |
| 36 |
Correct |
4 ms |
16052 KB |
Output is correct |
| 37 |
Correct |
3 ms |
15964 KB |
Output is correct |
| 38 |
Correct |
4 ms |
16220 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 2 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 3 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 4 |
Correct |
2 ms |
15800 KB |
Output is correct |
| 5 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 6 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 7 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 8 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 9 |
Correct |
3 ms |
15964 KB |
Output is correct |
| 10 |
Correct |
2 ms |
15756 KB |
Output is correct |
| 11 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 12 |
Correct |
2 ms |
15780 KB |
Output is correct |
| 13 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 14 |
Correct |
2 ms |
15960 KB |
Output is correct |
| 15 |
Correct |
3 ms |
15960 KB |
Output is correct |
| 16 |
Correct |
3 ms |
15960 KB |
Output is correct |
| 17 |
Correct |
3 ms |
15960 KB |
Output is correct |
| 18 |
Correct |
2 ms |
15960 KB |
Output is correct |
| 19 |
Correct |
2 ms |
15984 KB |
Output is correct |
| 20 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 21 |
Correct |
2 ms |
15964 KB |
Output is correct |
| 22 |
Correct |
5 ms |
15964 KB |
Output is correct |
| 23 |
Correct |
4 ms |
15964 KB |
Output is correct |
| 24 |
Correct |
5 ms |
15964 KB |
Output is correct |
| 25 |
Correct |
4 ms |
15964 KB |
Output is correct |
| 26 |
Correct |
5 ms |
16080 KB |
Output is correct |
| 27 |
Correct |
5 ms |
15960 KB |
Output is correct |
| 28 |
Correct |
5 ms |
15964 KB |
Output is correct |
| 29 |
Correct |
4 ms |
15964 KB |
Output is correct |
| 30 |
Correct |
4 ms |
16172 KB |
Output is correct |
| 31 |
Correct |
4 ms |
15964 KB |
Output is correct |
| 32 |
Correct |
5 ms |
16220 KB |
Output is correct |
| 33 |
Correct |
5 ms |
16220 KB |
Output is correct |
| 34 |
Correct |
3 ms |
15964 KB |
Output is correct |
| 35 |
Correct |
4 ms |
15992 KB |
Output is correct |
| 36 |
Correct |
4 ms |
16052 KB |
Output is correct |
| 37 |
Correct |
3 ms |
15964 KB |
Output is correct |
| 38 |
Correct |
4 ms |
16220 KB |
Output is correct |
| 39 |
Correct |
239 ms |
25172 KB |
Output is correct |
| 40 |
Correct |
227 ms |
25172 KB |
Output is correct |
| 41 |
Correct |
222 ms |
25168 KB |
Output is correct |
| 42 |
Correct |
213 ms |
25408 KB |
Output is correct |
| 43 |
Correct |
221 ms |
25412 KB |
Output is correct |
| 44 |
Correct |
219 ms |
25460 KB |
Output is correct |
| 45 |
Correct |
441 ms |
30212 KB |
Output is correct |
| 46 |
Correct |
388 ms |
34424 KB |
Output is correct |
| 47 |
Correct |
65 ms |
25800 KB |
Output is correct |
| 48 |
Correct |
51 ms |
25796 KB |
Output is correct |
| 49 |
Correct |
248 ms |
25940 KB |
Output is correct |
| 50 |
Correct |
70 ms |
26056 KB |
Output is correct |
| 51 |
Correct |
217 ms |
33388 KB |
Output is correct |
