#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
std::vector<int> longest_trip(int N, int D)
{
list <int> l1,l2;
l1.push_back(0);
bool flag=false;
for (int i(1); i < N; i++) {
if (l2.empty()) l2.push_back(i), flag=false;
else if (are_connected({i},{l1.back()})) {
l1.push_back(i);
flag=false;
}
else if (flag || are_connected({i},{l2.front()})){
l2.push_front(i);
flag=true;
}
else {
l1.insert(l1.end(), l2.begin(), l2.end());
l2.clear();
l2.push_back(i);
flag=false;
}
}
vector< int > v1, v2;
while (!l1.empty()) {
v1.push_back(l1.front());
l1.pop_front();
}
while (!l2.empty()) {
v2.push_back(l2.front());
l2.pop_front();
}
if (v2.size()==0) return v1;
if (!are_connected(v1, v2)) {
if (v1.size() > v2.size()) return v1;
return v2;
}
if (v1.size()>1 && !are_connected({v1[0]}, {v1.back()})) {
if (are_connected({v2[0]}, {v1.back()})) {
v1.insert(v1.end(), v2.begin(), v2.end());
}
else {
v1.insert(v1.begin(), v2.rbegin(), v2.rend());
}
return v1;
}
if (v2.size()>1 && !are_connected({v2[0]}, {v2.back()})) {
if (are_connected({v1.back()}, {v2[0]})) {
v1.insert(v1.end(), v2.begin(), v2.end());
}
else {
v1.insert(v1.end(), v2.rbegin(), v2.rend());
}
return v1;
}
int l=0, r=v1.size();
while (l<r) {
int mid=(l+r)/2;
if (are_connected(vector<int>(v1.begin(), v1.begin()+mid + 1), v2)) r=mid;
else l=mid+1;
}
int empl1=l;
l=0, r=v2.size();
while (l<r) {
int mid=(l+r)/2;
if (are_connected(vector<int>(v2.begin(), v2.begin()+mid + 1), {v1[empl1]})) r=mid;
else l=mid+1;
}
int empl2=l;
vector<int> ans;
ans=vector<int>(v1.begin()+empl1+1, v1.end());
ans.insert(ans.end(), v1.begin(), v1.begin()+empl1+1);
ans.insert(ans.end(), v2.begin()+empl2, v2.end());
ans.insert(ans.end(), v2.begin(), v2.begin()+empl2);
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 ms |
344 KB |
Output is correct |
| 2 |
Correct |
9 ms |
596 KB |
Output is correct |
| 3 |
Correct |
5 ms |
344 KB |
Output is correct |
| 4 |
Correct |
4 ms |
344 KB |
Output is correct |
| 5 |
Correct |
4 ms |
444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
344 KB |
Output is correct |
| 2 |
Correct |
8 ms |
344 KB |
Output is correct |
| 3 |
Correct |
6 ms |
344 KB |
Output is correct |
| 4 |
Correct |
6 ms |
600 KB |
Output is correct |
| 5 |
Correct |
5 ms |
444 KB |
Output is correct |
| 6 |
Correct |
12 ms |
344 KB |
Output is correct |
| 7 |
Correct |
8 ms |
344 KB |
Output is correct |
| 8 |
Correct |
6 ms |
600 KB |
Output is correct |
| 9 |
Correct |
5 ms |
340 KB |
Output is correct |
| 10 |
Correct |
7 ms |
860 KB |
Output is correct |
| 11 |
Correct |
4 ms |
440 KB |
Output is correct |
| 12 |
Correct |
5 ms |
600 KB |
Output is correct |
| 13 |
Correct |
5 ms |
444 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
11 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 |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
344 KB |
Output is correct |
| 6 |
Correct |
11 ms |
344 KB |
Output is correct |
| 7 |
Correct |
7 ms |
344 KB |
Output is correct |
| 8 |
Correct |
6 ms |
600 KB |
Output is correct |
| 9 |
Correct |
5 ms |
344 KB |
Output is correct |
| 10 |
Correct |
5 ms |
692 KB |
Output is correct |
| 11 |
Correct |
5 ms |
448 KB |
Output is correct |
| 12 |
Correct |
5 ms |
444 KB |
Output is correct |
| 13 |
Correct |
5 ms |
440 KB |
Output is correct |
| 14 |
Correct |
6 ms |
596 KB |
Output is correct |
| 15 |
Correct |
8 ms |
344 KB |
Output is correct |
| 16 |
Correct |
7 ms |
344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
440 KB |
Output is correct |
| 19 |
Correct |
7 ms |
600 KB |
Output is correct |
| 20 |
Correct |
6 ms |
692 KB |
Output is correct |
| 21 |
Correct |
6 ms |
612 KB |
Output is correct |
| 22 |
Correct |
5 ms |
444 KB |
Output is correct |
| 23 |
Correct |
5 ms |
704 KB |
Output is correct |
| 24 |
Correct |
5 ms |
440 KB |
Output is correct |
| 25 |
Correct |
6 ms |
344 KB |
Output is correct |
| 26 |
Correct |
6 ms |
596 KB |
Output is correct |
| 27 |
Correct |
6 ms |
344 KB |
Output is correct |
| 28 |
Correct |
6 ms |
344 KB |
Output is correct |
| 29 |
Correct |
7 ms |
340 KB |
Output is correct |
| 30 |
Correct |
6 ms |
432 KB |
Output is correct |
| 31 |
Correct |
5 ms |
436 KB |
Output is correct |
| 32 |
Correct |
5 ms |
436 KB |
Output is correct |
| 33 |
Correct |
4 ms |
340 KB |
Output is correct |
| 34 |
Correct |
5 ms |
600 KB |
Output is correct |
| 35 |
Correct |
4 ms |
344 KB |
Output is correct |
| 36 |
Correct |
5 ms |
440 KB |
Output is correct |
| 37 |
Correct |
5 ms |
440 KB |
Output is correct |
| 38 |
Correct |
5 ms |
608 KB |
Output is correct |
| 39 |
Correct |
5 ms |
600 KB |
Output is correct |
| 40 |
Correct |
6 ms |
440 KB |
Output is correct |
| 41 |
Correct |
5 ms |
344 KB |
Output is correct |
| 42 |
Correct |
5 ms |
608 KB |
Output is correct |
| 43 |
Correct |
6 ms |
600 KB |
Output is correct |
| 44 |
Correct |
6 ms |
444 KB |
Output is correct |
| 45 |
Correct |
12 ms |
344 KB |
Output is correct |
| 46 |
Correct |
14 ms |
344 KB |
Output is correct |
| 47 |
Correct |
8 ms |
344 KB |
Output is correct |
| 48 |
Correct |
9 ms |
344 KB |
Output is correct |
| 49 |
Correct |
8 ms |
344 KB |
Output is correct |
| 50 |
Correct |
5 ms |
692 KB |
Output is correct |
| 51 |
Correct |
7 ms |
436 KB |
Output is correct |
| 52 |
Correct |
6 ms |
432 KB |
Output is correct |
| 53 |
Correct |
5 ms |
600 KB |
Output is correct |
| 54 |
Correct |
5 ms |
600 KB |
Output is correct |
| 55 |
Correct |
5 ms |
440 KB |
Output is correct |
| 56 |
Correct |
5 ms |
700 KB |
Output is correct |
| 57 |
Correct |
5 ms |
616 KB |
Output is correct |
| 58 |
Correct |
5 ms |
704 KB |
Output is correct |
| 59 |
Correct |
6 ms |
456 KB |
Output is correct |
| 60 |
Correct |
6 ms |
704 KB |
Output is correct |
| 61 |
Correct |
6 ms |
860 KB |
Output is correct |
| 62 |
Correct |
7 ms |
612 KB |
Output is correct |
| 63 |
Correct |
7 ms |
448 KB |
Output is correct |
| 64 |
Correct |
8 ms |
864 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
12 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 |
4 ms |
344 KB |
Output is correct |
| 5 |
Correct |
4 ms |
448 KB |
Output is correct |
| 6 |
Correct |
11 ms |
344 KB |
Output is correct |
| 7 |
Correct |
8 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 |
4 ms |
440 KB |
Output is correct |
| 11 |
Correct |
5 ms |
604 KB |
Output is correct |
| 12 |
Correct |
6 ms |
448 KB |
Output is correct |
| 13 |
Correct |
5 ms |
448 KB |
Output is correct |
| 14 |
Correct |
6 ms |
344 KB |
Output is correct |
| 15 |
Correct |
6 ms |
344 KB |
Output is correct |
| 16 |
Correct |
9 ms |
344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
600 KB |
Output is correct |
| 19 |
Correct |
5 ms |
600 KB |
Output is correct |
| 20 |
Correct |
5 ms |
444 KB |
Output is correct |
| 21 |
Correct |
7 ms |
344 KB |
Output is correct |
| 22 |
Correct |
6 ms |
344 KB |
Output is correct |
| 23 |
Correct |
5 ms |
344 KB |
Output is correct |
| 24 |
Correct |
5 ms |
344 KB |
Output is correct |
| 25 |
Correct |
6 ms |
344 KB |
Output is correct |
| 26 |
Correct |
4 ms |
436 KB |
Output is correct |
| 27 |
Correct |
5 ms |
432 KB |
Output is correct |
| 28 |
Correct |
6 ms |
440 KB |
Output is correct |
| 29 |
Correct |
4 ms |
344 KB |
Output is correct |
| 30 |
Correct |
4 ms |
600 KB |
Output is correct |
| 31 |
Correct |
4 ms |
344 KB |
Output is correct |
| 32 |
Correct |
13 ms |
344 KB |
Output is correct |
| 33 |
Correct |
12 ms |
344 KB |
Output is correct |
| 34 |
Correct |
8 ms |
344 KB |
Output is correct |
| 35 |
Correct |
8 ms |
344 KB |
Output is correct |
| 36 |
Correct |
7 ms |
344 KB |
Output is correct |
| 37 |
Correct |
6 ms |
440 KB |
Output is correct |
| 38 |
Correct |
6 ms |
696 KB |
Output is correct |
| 39 |
Correct |
6 ms |
436 KB |
Output is correct |
| 40 |
Correct |
5 ms |
600 KB |
Output is correct |
| 41 |
Correct |
5 ms |
856 KB |
Output is correct |
| 42 |
Correct |
5 ms |
444 KB |
Output is correct |
| 43 |
Correct |
5 ms |
700 KB |
Output is correct |
| 44 |
Correct |
5 ms |
448 KB |
Output is correct |
| 45 |
Correct |
5 ms |
448 KB |
Output is correct |
| 46 |
Correct |
5 ms |
700 KB |
Output is correct |
| 47 |
Correct |
4 ms |
440 KB |
Output is correct |
| 48 |
Correct |
4 ms |
608 KB |
Output is correct |
| 49 |
Correct |
5 ms |
448 KB |
Output is correct |
| 50 |
Correct |
5 ms |
344 KB |
Output is correct |
| 51 |
Correct |
6 ms |
344 KB |
Output is correct |
| 52 |
Correct |
6 ms |
608 KB |
Output is correct |
| 53 |
Correct |
5 ms |
344 KB |
Output is correct |
| 54 |
Correct |
5 ms |
344 KB |
Output is correct |
| 55 |
Correct |
5 ms |
600 KB |
Output is correct |
| 56 |
Correct |
5 ms |
604 KB |
Output is correct |
| 57 |
Correct |
5 ms |
344 KB |
Output is correct |
| 58 |
Correct |
5 ms |
344 KB |
Output is correct |
| 59 |
Correct |
7 ms |
604 KB |
Output is correct |
| 60 |
Correct |
7 ms |
600 KB |
Output is correct |
| 61 |
Correct |
6 ms |
600 KB |
Output is correct |
| 62 |
Correct |
4 ms |
452 KB |
Output is correct |
| 63 |
Correct |
5 ms |
704 KB |
Output is correct |
| 64 |
Correct |
6 ms |
712 KB |
Output is correct |
| 65 |
Correct |
6 ms |
696 KB |
Output is correct |
| 66 |
Correct |
7 ms |
860 KB |
Output is correct |
| 67 |
Correct |
6 ms |
452 KB |
Output is correct |
| 68 |
Correct |
6 ms |
860 KB |
Output is correct |
| 69 |
Correct |
6 ms |
696 KB |
Output is correct |
| 70 |
Correct |
7 ms |
952 KB |
Output is correct |
| 71 |
Correct |
5 ms |
612 KB |
Output is correct |
| 72 |
Correct |
5 ms |
448 KB |
Output is correct |
| 73 |
Correct |
7 ms |
444 KB |
Output is correct |
| 74 |
Correct |
6 ms |
704 KB |
Output is correct |
| 75 |
Correct |
8 ms |
960 KB |
Output is correct |
| 76 |
Correct |
6 ms |
600 KB |
Output is correct |
| 77 |
Correct |
5 ms |
704 KB |
Output is correct |
| 78 |
Correct |
5 ms |
452 KB |
Output is correct |
| 79 |
Correct |
6 ms |
448 KB |
Output is correct |
| 80 |
Correct |
6 ms |
700 KB |
Output is correct |
| 81 |
Correct |
6 ms |
864 KB |
Output is correct |
| 82 |
Correct |
6 ms |
608 KB |
Output is correct |
