#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
mt19937_64 rng;
const int maxn=305;
vector<int> cc[maxn];
vector<int> longest_trip(int N, int D)
{
rng.seed(998244353);
for(int i=0;i<N;i++) cc[i].clear();
vector<int> res={0};
vector<int> s;
for(int i=1;i<N;i++){
cc[i].push_back(i);
s.push_back(i);
}
while(!s.empty()){
int st=-1,cnt=0;
bool check=false;
shuffle(s.begin(),s.end(),rng);
for(int x:s){
cnt++;
if(!are_connected({res.back()},cc[x])){
if(st==-1) st=x;
else for(int u:cc[x]) cc[st].push_back(u);
}
else{
check=true;
int l=1,r=(int)cc[x].size();
while(l<r){
int mid=(l+r)>>1;
vector<int> v(cc[x].begin(),cc[x].begin()+mid);
if(are_connected({res.back()},v)) r=mid;
else l=mid+1;
}
r--;
res.push_back(cc[x][r]);
for(int u:cc[x]) if(u!=cc[x][r]) res.push_back(u);
break;
}
}
s.erase(s.begin(),s.begin()+cnt);
if(!check){
int l=1,r=(int)cc[st].size(),p=-1;
while(l<=r){
int mid=(l+r)>>1;
vector<int> v(cc[st].begin(),cc[st].begin()+mid);
if(are_connected(res,v)) p=cc[st][mid-1],r=mid-1;
else l=mid+1;
}
if(p==-1){
if((int)cc[st].size()>(int)res.size()) swap(res,cc[st]);
}
else{
reverse(res.begin(),res.end());
if(!are_connected({res.back()},{p})){
l=1,r=(int)res.size();
while(l<r){
int mid=(l+r)>>1;
vector<int> v(res.begin(),res.begin()+mid);
if(are_connected({p},v)) r=mid;
else l=mid+1;
}
res.insert(res.end(),res.begin(),res.begin()+r);
res.erase(res.begin(),res.begin()+r);
}
res.push_back(p);
for(int u:cc[st]) if(u!=p) res.push_back(u);
}
}
else if(st!=-1) s.push_back(st);
}
return res;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
2 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
344 KB |
Output is correct |
| 2 |
Correct |
5 ms |
344 KB |
Output is correct |
| 3 |
Correct |
6 ms |
344 KB |
Output is correct |
| 4 |
Correct |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
7 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
344 KB |
Output is correct |
| 2 |
Correct |
7 ms |
344 KB |
Output is correct |
| 3 |
Correct |
5 ms |
344 KB |
Output is correct |
| 4 |
Correct |
6 ms |
344 KB |
Output is correct |
| 5 |
Correct |
7 ms |
344 KB |
Output is correct |
| 6 |
Correct |
7 ms |
344 KB |
Output is correct |
| 7 |
Correct |
6 ms |
344 KB |
Output is correct |
| 8 |
Correct |
5 ms |
344 KB |
Output is correct |
| 9 |
Correct |
5 ms |
344 KB |
Output is correct |
| 10 |
Correct |
6 ms |
344 KB |
Output is correct |
| 11 |
Correct |
6 ms |
344 KB |
Output is correct |
| 12 |
Correct |
6 ms |
440 KB |
Output is correct |
| 13 |
Correct |
7 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
344 KB |
Output is correct |
| 2 |
Correct |
5 ms |
344 KB |
Output is correct |
| 3 |
Correct |
5 ms |
344 KB |
Output is correct |
| 4 |
Correct |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
6 ms |
344 KB |
Output is correct |
| 6 |
Correct |
9 ms |
344 KB |
Output is correct |
| 7 |
Correct |
5 ms |
344 KB |
Output is correct |
| 8 |
Correct |
5 ms |
344 KB |
Output is correct |
| 9 |
Correct |
6 ms |
344 KB |
Output is correct |
| 10 |
Correct |
6 ms |
596 KB |
Output is correct |
| 11 |
Correct |
6 ms |
344 KB |
Output is correct |
| 12 |
Correct |
6 ms |
344 KB |
Output is correct |
| 13 |
Correct |
6 ms |
344 KB |
Output is correct |
| 14 |
Correct |
8 ms |
344 KB |
Output is correct |
| 15 |
Correct |
8 ms |
344 KB |
Output is correct |
| 16 |
Correct |
6 ms |
344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
600 KB |
Output is correct |
| 18 |
Correct |
6 ms |
344 KB |
Output is correct |
| 19 |
Correct |
6 ms |
344 KB |
Output is correct |
| 20 |
Correct |
6 ms |
344 KB |
Output is correct |
| 21 |
Correct |
8 ms |
444 KB |
Output is correct |
| 22 |
Correct |
7 ms |
344 KB |
Output is correct |
| 23 |
Correct |
7 ms |
344 KB |
Output is correct |
| 24 |
Correct |
7 ms |
344 KB |
Output is correct |
| 25 |
Correct |
7 ms |
344 KB |
Output is correct |
| 26 |
Correct |
9 ms |
344 KB |
Output is correct |
| 27 |
Correct |
6 ms |
344 KB |
Output is correct |
| 28 |
Correct |
7 ms |
344 KB |
Output is correct |
| 29 |
Correct |
8 ms |
344 KB |
Output is correct |
| 30 |
Correct |
5 ms |
344 KB |
Output is correct |
| 31 |
Correct |
7 ms |
448 KB |
Output is correct |
| 32 |
Correct |
7 ms |
456 KB |
Output is correct |
| 33 |
Correct |
5 ms |
600 KB |
Output is correct |
| 34 |
Correct |
5 ms |
344 KB |
Output is correct |
| 35 |
Correct |
6 ms |
600 KB |
Output is correct |
| 36 |
Correct |
6 ms |
344 KB |
Output is correct |
| 37 |
Correct |
7 ms |
344 KB |
Output is correct |
| 38 |
Correct |
8 ms |
600 KB |
Output is correct |
| 39 |
Correct |
8 ms |
460 KB |
Output is correct |
| 40 |
Correct |
7 ms |
608 KB |
Output is correct |
| 41 |
Correct |
8 ms |
972 KB |
Output is correct |
| 42 |
Correct |
8 ms |
972 KB |
Output is correct |
| 43 |
Correct |
7 ms |
600 KB |
Output is correct |
| 44 |
Correct |
8 ms |
476 KB |
Output is correct |
| 45 |
Correct |
9 ms |
344 KB |
Output is correct |
| 46 |
Correct |
7 ms |
344 KB |
Output is correct |
| 47 |
Correct |
10 ms |
344 KB |
Output is correct |
| 48 |
Correct |
8 ms |
344 KB |
Output is correct |
| 49 |
Correct |
8 ms |
344 KB |
Output is correct |
| 50 |
Correct |
5 ms |
452 KB |
Output is correct |
| 51 |
Correct |
6 ms |
452 KB |
Output is correct |
| 52 |
Correct |
7 ms |
452 KB |
Output is correct |
| 53 |
Correct |
6 ms |
600 KB |
Output is correct |
| 54 |
Correct |
6 ms |
600 KB |
Output is correct |
| 55 |
Correct |
7 ms |
600 KB |
Output is correct |
| 56 |
Correct |
7 ms |
720 KB |
Output is correct |
| 57 |
Correct |
7 ms |
616 KB |
Output is correct |
| 58 |
Correct |
8 ms |
740 KB |
Output is correct |
| 59 |
Correct |
8 ms |
724 KB |
Output is correct |
| 60 |
Correct |
8 ms |
860 KB |
Output is correct |
| 61 |
Correct |
9 ms |
700 KB |
Output is correct |
| 62 |
Correct |
8 ms |
720 KB |
Output is correct |
| 63 |
Correct |
8 ms |
872 KB |
Output is correct |
| 64 |
Correct |
8 ms |
972 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
344 KB |
Output is correct |
| 2 |
Correct |
5 ms |
344 KB |
Output is correct |
| 3 |
Correct |
5 ms |
344 KB |
Output is correct |
| 4 |
Correct |
6 ms |
344 KB |
Output is correct |
| 5 |
Correct |
7 ms |
344 KB |
Output is correct |
| 6 |
Correct |
8 ms |
344 KB |
Output is correct |
| 7 |
Correct |
7 ms |
344 KB |
Output is correct |
| 8 |
Correct |
6 ms |
344 KB |
Output is correct |
| 9 |
Correct |
5 ms |
344 KB |
Output is correct |
| 10 |
Correct |
6 ms |
344 KB |
Output is correct |
| 11 |
Correct |
7 ms |
344 KB |
Output is correct |
| 12 |
Correct |
7 ms |
344 KB |
Output is correct |
| 13 |
Correct |
6 ms |
344 KB |
Output is correct |
| 14 |
Correct |
11 ms |
344 KB |
Output is correct |
| 15 |
Correct |
7 ms |
344 KB |
Output is correct |
| 16 |
Correct |
9 ms |
344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
600 KB |
Output is correct |
| 18 |
Correct |
6 ms |
344 KB |
Output is correct |
| 19 |
Correct |
6 ms |
344 KB |
Output is correct |
| 20 |
Correct |
6 ms |
340 KB |
Output is correct |
| 21 |
Correct |
7 ms |
344 KB |
Output is correct |
| 22 |
Correct |
8 ms |
344 KB |
Output is correct |
| 23 |
Correct |
6 ms |
344 KB |
Output is correct |
| 24 |
Correct |
9 ms |
344 KB |
Output is correct |
| 25 |
Correct |
7 ms |
344 KB |
Output is correct |
| 26 |
Correct |
6 ms |
344 KB |
Output is correct |
| 27 |
Correct |
6 ms |
448 KB |
Output is correct |
| 28 |
Correct |
6 ms |
452 KB |
Output is correct |
| 29 |
Correct |
6 ms |
600 KB |
Output is correct |
| 30 |
Correct |
6 ms |
344 KB |
Output is correct |
| 31 |
Correct |
6 ms |
344 KB |
Output is correct |
| 32 |
Correct |
8 ms |
344 KB |
Output is correct |
| 33 |
Correct |
9 ms |
344 KB |
Output is correct |
| 34 |
Correct |
10 ms |
344 KB |
Output is correct |
| 35 |
Correct |
8 ms |
344 KB |
Output is correct |
| 36 |
Correct |
10 ms |
344 KB |
Output is correct |
| 37 |
Correct |
6 ms |
448 KB |
Output is correct |
| 38 |
Correct |
7 ms |
708 KB |
Output is correct |
| 39 |
Correct |
8 ms |
448 KB |
Output is correct |
| 40 |
Correct |
6 ms |
456 KB |
Output is correct |
| 41 |
Correct |
7 ms |
600 KB |
Output is correct |
| 42 |
Correct |
7 ms |
600 KB |
Output is correct |
| 43 |
Correct |
8 ms |
344 KB |
Output is correct |
| 44 |
Correct |
7 ms |
344 KB |
Output is correct |
| 45 |
Correct |
6 ms |
344 KB |
Output is correct |
| 46 |
Correct |
7 ms |
344 KB |
Output is correct |
| 47 |
Correct |
6 ms |
344 KB |
Output is correct |
| 48 |
Correct |
8 ms |
344 KB |
Output is correct |
| 49 |
Correct |
8 ms |
460 KB |
Output is correct |
| 50 |
Correct |
8 ms |
716 KB |
Output is correct |
| 51 |
Correct |
10 ms |
604 KB |
Output is correct |
| 52 |
Correct |
8 ms |
968 KB |
Output is correct |
| 53 |
Correct |
9 ms |
600 KB |
Output is correct |
| 54 |
Correct |
7 ms |
612 KB |
Output is correct |
| 55 |
Correct |
8 ms |
728 KB |
Output is correct |
| 56 |
Correct |
8 ms |
344 KB |
Output is correct |
| 57 |
Correct |
7 ms |
612 KB |
Output is correct |
| 58 |
Correct |
8 ms |
728 KB |
Output is correct |
| 59 |
Correct |
9 ms |
980 KB |
Output is correct |
| 60 |
Correct |
8 ms |
1112 KB |
Output is correct |
| 61 |
Correct |
8 ms |
600 KB |
Output is correct |
| 62 |
Correct |
7 ms |
860 KB |
Output is correct |
| 63 |
Correct |
8 ms |
724 KB |
Output is correct |
| 64 |
Correct |
8 ms |
476 KB |
Output is correct |
| 65 |
Correct |
8 ms |
864 KB |
Output is correct |
| 66 |
Correct |
8 ms |
712 KB |
Output is correct |
| 67 |
Correct |
9 ms |
720 KB |
Output is correct |
| 68 |
Correct |
7 ms |
1236 KB |
Output is correct |
| 69 |
Correct |
8 ms |
868 KB |
Output is correct |
| 70 |
Correct |
9 ms |
868 KB |
Output is correct |
| 71 |
Correct |
7 ms |
856 KB |
Output is correct |
| 72 |
Correct |
8 ms |
728 KB |
Output is correct |
| 73 |
Correct |
8 ms |
976 KB |
Output is correct |
| 74 |
Correct |
8 ms |
872 KB |
Output is correct |
| 75 |
Correct |
8 ms |
600 KB |
Output is correct |
| 76 |
Correct |
8 ms |
720 KB |
Output is correct |
| 77 |
Correct |
7 ms |
728 KB |
Output is correct |
| 78 |
Correct |
8 ms |
728 KB |
Output is correct |
| 79 |
Correct |
8 ms |
608 KB |
Output is correct |
| 80 |
Correct |
10 ms |
864 KB |
Output is correct |
| 81 |
Correct |
9 ms |
728 KB |
Output is correct |
| 82 |
Correct |
9 ms |
976 KB |
Output is correct |
