#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> longest_trip(int N, int D) {
if (D > 1) {
deque<int> a;
if (are_connected({0}, {1})) {
a = {0, 1};
if (are_connected({0}, {2})) {
a.push_front(2);
} else {
a.push_back(2);
}
} else {
a = {0, 2, 1};
}
for (int i = 3; i < N; i++) {
if (are_connected({a.front()}, {i})) {
a.push_front(i);
} else {
a.push_back(i);
}
}
return vector(a.begin(), a.end());
}
set<pair<int, int>> s;
vector<int> a{0}, b{1};
for (int i = 2; i < N; i++) {
if (s.count(minmax(a.back(), b.back()))) {
if (are_connected({i}, {a.back()})) {
a.push_back(i);
} else {
s.insert(minmax(i, a.back()));
b.push_back(i);
}
} else if (are_connected({i}, {a.back()})) {
a.push_back(i);
} else if (are_connected({i}, {b.back()})) {
s.insert(minmax(i, a.back()));
b.push_back(i);
} else {
s.insert(minmax(i, a.back()));
s.insert(minmax(i, b.back()));
a.insert(a.end(), b.rbegin(), b.rend());
b = {i};
}
}
if (!are_connected(a, b)) {
return a.size() > b.size() ? a : b;
}
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
if (are_connected({a.back()}, {b.front()})) {
a.insert(a.end(), b.begin(), b.end());
return a;
}
reverse(b.begin(), b.end());
}
reverse(a.begin(), a.end());
}
int i, lo, hi;
lo = 0, hi = a.size() - 1;
while (lo < hi) {
int mi = (lo + hi) / 2;
are_connected(vector(a.begin(), a.begin() + mi + 1), b) ? hi = mi : lo = mi + 1;
}
i = lo, lo = 0, hi = b.size() - 1;
while (lo < hi) {
int mi = (lo + hi) / 2;
are_connected(vector(b.begin(), b.begin() + mi + 1), {a[i]}) ? hi = mi : lo = mi + 1;
}
vector<int> ans;
ans.insert(ans.end(), a.begin() + i + 1, a.end());
ans.insert(ans.end(), a.begin(), a.begin() + i + 1);
ans.insert(ans.end(), b.begin() + lo, b.end());
ans.insert(ans.end(), b.begin(), b.begin() + lo);
return ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 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 |
4 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
596 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
344 KB |
Output is correct |
| 2 |
Correct |
4 ms |
344 KB |
Output is correct |
| 3 |
Correct |
4 ms |
344 KB |
Output is correct |
| 4 |
Correct |
4 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
344 KB |
Output is correct |
| 6 |
Correct |
5 ms |
344 KB |
Output is correct |
| 7 |
Correct |
4 ms |
344 KB |
Output is correct |
| 8 |
Correct |
4 ms |
344 KB |
Output is correct |
| 9 |
Correct |
5 ms |
596 KB |
Output is correct |
| 10 |
Correct |
5 ms |
436 KB |
Output is correct |
| 11 |
Correct |
4 ms |
600 KB |
Output is correct |
| 12 |
Correct |
4 ms |
344 KB |
Output is correct |
| 13 |
Correct |
4 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
344 KB |
Output is correct |
| 2 |
Correct |
6 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 |
344 KB |
Output is correct |
| 6 |
Correct |
9 ms |
344 KB |
Output is correct |
| 7 |
Correct |
6 ms |
584 KB |
Output is correct |
| 8 |
Correct |
4 ms |
344 KB |
Output is correct |
| 9 |
Correct |
4 ms |
600 KB |
Output is correct |
| 10 |
Correct |
4 ms |
600 KB |
Output is correct |
| 11 |
Correct |
5 ms |
356 KB |
Output is correct |
| 12 |
Correct |
4 ms |
344 KB |
Output is correct |
| 13 |
Correct |
4 ms |
344 KB |
Output is correct |
| 14 |
Correct |
7 ms |
344 KB |
Output is correct |
| 15 |
Correct |
6 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 |
5 ms |
344 KB |
Output is correct |
| 20 |
Correct |
5 ms |
344 KB |
Output is correct |
| 21 |
Correct |
5 ms |
440 KB |
Output is correct |
| 22 |
Correct |
5 ms |
600 KB |
Output is correct |
| 23 |
Correct |
5 ms |
440 KB |
Output is correct |
| 24 |
Correct |
5 ms |
448 KB |
Output is correct |
| 25 |
Correct |
6 ms |
344 KB |
Output is correct |
| 26 |
Correct |
7 ms |
596 KB |
Output is correct |
| 27 |
Correct |
5 ms |
344 KB |
Output is correct |
| 28 |
Correct |
7 ms |
428 KB |
Output is correct |
| 29 |
Correct |
5 ms |
344 KB |
Output is correct |
| 30 |
Correct |
5 ms |
344 KB |
Output is correct |
| 31 |
Correct |
6 ms |
600 KB |
Output is correct |
| 32 |
Correct |
5 ms |
436 KB |
Output is correct |
| 33 |
Correct |
5 ms |
856 KB |
Output is correct |
| 34 |
Correct |
5 ms |
344 KB |
Output is correct |
| 35 |
Correct |
5 ms |
344 KB |
Output is correct |
| 36 |
Correct |
4 ms |
344 KB |
Output is correct |
| 37 |
Correct |
5 ms |
344 KB |
Output is correct |
| 38 |
Correct |
5 ms |
600 KB |
Output is correct |
| 39 |
Correct |
5 ms |
600 KB |
Output is correct |
| 40 |
Correct |
6 ms |
600 KB |
Output is correct |
| 41 |
Correct |
6 ms |
344 KB |
Output is correct |
| 42 |
Correct |
5 ms |
344 KB |
Output is correct |
| 43 |
Correct |
5 ms |
600 KB |
Output is correct |
| 44 |
Correct |
6 ms |
344 KB |
Output is correct |
| 45 |
Correct |
11 ms |
344 KB |
Output is correct |
| 46 |
Correct |
10 ms |
344 KB |
Output is correct |
| 47 |
Correct |
7 ms |
344 KB |
Output is correct |
| 48 |
Correct |
9 ms |
596 KB |
Output is correct |
| 49 |
Correct |
7 ms |
344 KB |
Output is correct |
| 50 |
Correct |
5 ms |
692 KB |
Output is correct |
| 51 |
Correct |
9 ms |
440 KB |
Output is correct |
| 52 |
Correct |
7 ms |
436 KB |
Output is correct |
| 53 |
Correct |
5 ms |
692 KB |
Output is correct |
| 54 |
Correct |
5 ms |
856 KB |
Output is correct |
| 55 |
Correct |
5 ms |
600 KB |
Output is correct |
| 56 |
Correct |
5 ms |
444 KB |
Output is correct |
| 57 |
Correct |
5 ms |
700 KB |
Output is correct |
| 58 |
Correct |
6 ms |
712 KB |
Output is correct |
| 59 |
Correct |
6 ms |
872 KB |
Output is correct |
| 60 |
Correct |
6 ms |
604 KB |
Output is correct |
| 61 |
Correct |
8 ms |
612 KB |
Output is correct |
| 62 |
Correct |
7 ms |
452 KB |
Output is correct |
| 63 |
Correct |
6 ms |
444 KB |
Output is correct |
| 64 |
Correct |
7 ms |
452 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
344 KB |
Output is correct |
| 2 |
Correct |
6 ms |
344 KB |
Output is correct |
| 3 |
Correct |
4 ms |
344 KB |
Output is correct |
| 4 |
Correct |
4 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
344 KB |
Output is correct |
| 6 |
Correct |
8 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 |
4 ms |
600 KB |
Output is correct |
| 10 |
Correct |
4 ms |
600 KB |
Output is correct |
| 11 |
Correct |
5 ms |
344 KB |
Output is correct |
| 12 |
Correct |
4 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 ms |
600 KB |
Output is correct |
| 14 |
Correct |
6 ms |
344 KB |
Output is correct |
| 15 |
Correct |
6 ms |
344 KB |
Output is correct |
| 16 |
Correct |
8 ms |
344 KB |
Output is correct |
| 17 |
Correct |
8 ms |
592 KB |
Output is correct |
| 18 |
Correct |
5 ms |
344 KB |
Output is correct |
| 19 |
Correct |
5 ms |
600 KB |
Output is correct |
| 20 |
Correct |
5 ms |
344 KB |
Output is correct |
| 21 |
Correct |
5 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 |
7 ms |
344 KB |
Output is correct |
| 25 |
Correct |
5 ms |
344 KB |
Output is correct |
| 26 |
Correct |
4 ms |
344 KB |
Output is correct |
| 27 |
Correct |
6 ms |
432 KB |
Output is correct |
| 28 |
Correct |
5 ms |
436 KB |
Output is correct |
| 29 |
Correct |
5 ms |
432 KB |
Output is correct |
| 30 |
Correct |
4 ms |
344 KB |
Output is correct |
| 31 |
Correct |
5 ms |
344 KB |
Output is correct |
| 32 |
Correct |
10 ms |
344 KB |
Output is correct |
| 33 |
Correct |
10 ms |
344 KB |
Output is correct |
| 34 |
Correct |
9 ms |
344 KB |
Output is correct |
| 35 |
Correct |
7 ms |
344 KB |
Output is correct |
| 36 |
Correct |
8 ms |
344 KB |
Output is correct |
| 37 |
Correct |
5 ms |
436 KB |
Output is correct |
| 38 |
Correct |
6 ms |
436 KB |
Output is correct |
| 39 |
Correct |
7 ms |
436 KB |
Output is correct |
| 40 |
Correct |
5 ms |
600 KB |
Output is correct |
| 41 |
Correct |
6 ms |
600 KB |
Output is correct |
| 42 |
Correct |
6 ms |
344 KB |
Output is correct |
| 43 |
Correct |
5 ms |
696 KB |
Output is correct |
| 44 |
Correct |
5 ms |
604 KB |
Output is correct |
| 45 |
Correct |
5 ms |
436 KB |
Output is correct |
| 46 |
Correct |
5 ms |
444 KB |
Output is correct |
| 47 |
Correct |
5 ms |
344 KB |
Output is correct |
| 48 |
Correct |
5 ms |
344 KB |
Output is correct |
| 49 |
Correct |
5 ms |
436 KB |
Output is correct |
| 50 |
Correct |
6 ms |
348 KB |
Output is correct |
| 51 |
Correct |
5 ms |
600 KB |
Output is correct |
| 52 |
Correct |
6 ms |
344 KB |
Output is correct |
| 53 |
Correct |
5 ms |
344 KB |
Output is correct |
| 54 |
Correct |
6 ms |
600 KB |
Output is correct |
| 55 |
Correct |
5 ms |
344 KB |
Output is correct |
| 56 |
Correct |
4 ms |
344 KB |
Output is correct |
| 57 |
Correct |
5 ms |
436 KB |
Output is correct |
| 58 |
Correct |
5 ms |
444 KB |
Output is correct |
| 59 |
Correct |
6 ms |
344 KB |
Output is correct |
| 60 |
Correct |
6 ms |
344 KB |
Output is correct |
| 61 |
Correct |
5 ms |
344 KB |
Output is correct |
| 62 |
Correct |
5 ms |
608 KB |
Output is correct |
| 63 |
Correct |
7 ms |
700 KB |
Output is correct |
| 64 |
Correct |
6 ms |
456 KB |
Output is correct |
| 65 |
Correct |
6 ms |
700 KB |
Output is correct |
| 66 |
Correct |
6 ms |
448 KB |
Output is correct |
| 67 |
Correct |
6 ms |
700 KB |
Output is correct |
| 68 |
Correct |
6 ms |
704 KB |
Output is correct |
| 69 |
Correct |
7 ms |
604 KB |
Output is correct |
| 70 |
Correct |
6 ms |
608 KB |
Output is correct |
| 71 |
Correct |
6 ms |
692 KB |
Output is correct |
| 72 |
Correct |
6 ms |
704 KB |
Output is correct |
| 73 |
Correct |
6 ms |
452 KB |
Output is correct |
| 74 |
Correct |
8 ms |
704 KB |
Output is correct |
| 75 |
Correct |
8 ms |
604 KB |
Output is correct |
| 76 |
Correct |
6 ms |
856 KB |
Output is correct |
| 77 |
Correct |
5 ms |
700 KB |
Output is correct |
| 78 |
Correct |
8 ms |
700 KB |
Output is correct |
| 79 |
Correct |
7 ms |
952 KB |
Output is correct |
| 80 |
Correct |
7 ms |
700 KB |
Output is correct |
| 81 |
Correct |
7 ms |
700 KB |
Output is correct |
| 82 |
Correct |
7 ms |
700 KB |
Output is correct |
