#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;
vector < int > longest_trip(int n, int d) {
bool g = 0;
vector < int > a = {0}, b = {1};
for (int i = 2; i < n; i++) {
if (g) {
if (are_connected({a.back()}, {i})) a.push_back(i), g = 0;
else b.push_back(i);
} else {
if (are_connected({a.back()}, {i})) a.push_back(i);
else if (are_connected({b.back()}, {i})) b.push_back(i), g = 1;
else {
reverse(b.begin(), b.end());
for (auto v : b) a.push_back(v);
b = {i};
}
}
}
if (are_connected(a, b)) {
if (are_connected({a.back()}, {b.back()})) {
reverse(b.begin(), b.end());
for (auto v : b) a.push_back(v);
return a;
} else if (are_connected({a.back()}, {b[0]})) {
for (auto v : b) a.push_back(v);
return a;
} else if (are_connected({a[0]}, {b.back()})) {
for (auto v : a) b.push_back(v);
return b;
} else if (are_connected({a[0]}, {b[0]})) {
reverse(b.begin(), b.end());
for (auto v : a) b.push_back(v);
return b;
} else {
int l = 0, r = (int)a.size() - 1;
while (l < r) {
int mid = (l + r) >> 1;
vector < int > crr;
for (int i = 0; i <= mid; i++) crr.push_back(a[i]);
if (are_connected(crr, b)) r = mid;
else l = mid + 1;
}
int p = l;
l = 0, r = (int)b.size() - 1;
while (l < r) {
int mid = (l + r) >> 1;
vector < int > crr;
for (int i = 0; i <= mid; i++) crr.push_back(b[i]);
if (are_connected({a[p]}, crr)) r = mid;
else l = mid + 1;
}
vector < int > res;
for (int i = (p + 1) % (int)a.size(), s = 0; s < (int)a.size(); s++, i = (i + 1) % (int)a.size()) res.push_back(a[i]);
for (int i = l, s = 0; s < (int)b.size(); s++, i = (i + 1) % (int)b.size()) res.push_back(b[i]);
return res;
}
} else {
return ((int)a.size() > (int)b.size() ? a : b);
}
return {};
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
2 ms |
436 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 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 |
7 ms |
340 KB |
Output is correct |
| 5 |
Correct |
6 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 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 |
9 ms |
344 KB |
Output is correct |
| 7 |
Correct |
6 ms |
344 KB |
Output is correct |
| 8 |
Correct |
9 ms |
344 KB |
Output is correct |
| 9 |
Correct |
4 ms |
344 KB |
Output is correct |
| 10 |
Correct |
9 ms |
344 KB |
Output is correct |
| 11 |
Correct |
5 ms |
344 KB |
Output is correct |
| 12 |
Correct |
9 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 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 |
344 KB |
Output is correct |
| 3 |
Correct |
4 ms |
344 KB |
Output is correct |
| 4 |
Correct |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
340 KB |
Output is correct |
| 6 |
Correct |
10 ms |
344 KB |
Output is correct |
| 7 |
Correct |
6 ms |
344 KB |
Output is correct |
| 8 |
Correct |
6 ms |
344 KB |
Output is correct |
| 9 |
Correct |
5 ms |
432 KB |
Output is correct |
| 10 |
Correct |
5 ms |
432 KB |
Output is correct |
| 11 |
Correct |
5 ms |
344 KB |
Output is correct |
| 12 |
Correct |
5 ms |
344 KB |
Output is correct |
| 13 |
Correct |
6 ms |
344 KB |
Output is correct |
| 14 |
Correct |
6 ms |
344 KB |
Output is correct |
| 15 |
Correct |
8 ms |
344 KB |
Output is correct |
| 16 |
Correct |
8 ms |
344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
344 KB |
Output is correct |
| 19 |
Correct |
7 ms |
600 KB |
Output is correct |
| 20 |
Correct |
8 ms |
344 KB |
Output is correct |
| 21 |
Correct |
6 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
344 KB |
Output is correct |
| 23 |
Correct |
8 ms |
344 KB |
Output is correct |
| 24 |
Correct |
6 ms |
344 KB |
Output is correct |
| 25 |
Correct |
6 ms |
344 KB |
Output is correct |
| 26 |
Correct |
4 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 |
6 ms |
344 KB |
Output is correct |
| 31 |
Correct |
9 ms |
344 KB |
Output is correct |
| 32 |
Correct |
6 ms |
344 KB |
Output is correct |
| 33 |
Correct |
5 ms |
344 KB |
Output is correct |
| 34 |
Correct |
6 ms |
344 KB |
Output is correct |
| 35 |
Correct |
8 ms |
344 KB |
Output is correct |
| 36 |
Correct |
5 ms |
344 KB |
Output is correct |
| 37 |
Correct |
6 ms |
436 KB |
Output is correct |
| 38 |
Correct |
4 ms |
344 KB |
Output is correct |
| 39 |
Correct |
9 ms |
428 KB |
Output is correct |
| 40 |
Correct |
6 ms |
344 KB |
Output is correct |
| 41 |
Correct |
9 ms |
344 KB |
Output is correct |
| 42 |
Correct |
6 ms |
344 KB |
Output is correct |
| 43 |
Correct |
8 ms |
344 KB |
Output is correct |
| 44 |
Correct |
6 ms |
344 KB |
Output is correct |
| 45 |
Correct |
8 ms |
344 KB |
Output is correct |
| 46 |
Correct |
9 ms |
344 KB |
Output is correct |
| 47 |
Correct |
9 ms |
344 KB |
Output is correct |
| 48 |
Correct |
12 ms |
344 KB |
Output is correct |
| 49 |
Correct |
8 ms |
344 KB |
Output is correct |
| 50 |
Correct |
8 ms |
344 KB |
Output is correct |
| 51 |
Correct |
10 ms |
344 KB |
Output is correct |
| 52 |
Correct |
10 ms |
344 KB |
Output is correct |
| 53 |
Correct |
6 ms |
596 KB |
Output is correct |
| 54 |
Correct |
5 ms |
344 KB |
Output is correct |
| 55 |
Correct |
6 ms |
344 KB |
Output is correct |
| 56 |
Correct |
4 ms |
356 KB |
Output is correct |
| 57 |
Correct |
7 ms |
600 KB |
Output is correct |
| 58 |
Correct |
9 ms |
600 KB |
Output is correct |
| 59 |
Correct |
8 ms |
444 KB |
Output is correct |
| 60 |
Correct |
6 ms |
344 KB |
Output is correct |
| 61 |
Correct |
5 ms |
344 KB |
Output is correct |
| 62 |
Correct |
8 ms |
344 KB |
Output is correct |
| 63 |
Correct |
9 ms |
436 KB |
Output is correct |
| 64 |
Correct |
8 ms |
444 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 |
5 ms |
344 KB |
Output is correct |
| 4 |
Correct |
4 ms |
344 KB |
Output is correct |
| 5 |
Correct |
7 ms |
344 KB |
Output is correct |
| 6 |
Correct |
9 ms |
344 KB |
Output is correct |
| 7 |
Correct |
6 ms |
344 KB |
Output is correct |
| 8 |
Correct |
7 ms |
344 KB |
Output is correct |
| 9 |
Correct |
6 ms |
344 KB |
Output is correct |
| 10 |
Correct |
4 ms |
344 KB |
Output is correct |
| 11 |
Correct |
7 ms |
600 KB |
Output is correct |
| 12 |
Correct |
5 ms |
344 KB |
Output is correct |
| 13 |
Correct |
8 ms |
344 KB |
Output is correct |
| 14 |
Correct |
6 ms |
344 KB |
Output is correct |
| 15 |
Correct |
7 ms |
344 KB |
Output is correct |
| 16 |
Correct |
11 ms |
344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
344 KB |
Output is correct |
| 18 |
Correct |
9 ms |
344 KB |
Output is correct |
| 19 |
Correct |
7 ms |
436 KB |
Output is correct |
| 20 |
Correct |
8 ms |
600 KB |
Output is correct |
| 21 |
Correct |
6 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
344 KB |
Output is correct |
| 23 |
Correct |
6 ms |
344 KB |
Output is correct |
| 24 |
Correct |
6 ms |
344 KB |
Output is correct |
| 25 |
Correct |
6 ms |
344 KB |
Output is correct |
| 26 |
Correct |
5 ms |
344 KB |
Output is correct |
| 27 |
Correct |
6 ms |
344 KB |
Output is correct |
| 28 |
Correct |
9 ms |
344 KB |
Output is correct |
| 29 |
Correct |
5 ms |
344 KB |
Output is correct |
| 30 |
Correct |
7 ms |
344 KB |
Output is correct |
| 31 |
Correct |
4 ms |
344 KB |
Output is correct |
| 32 |
Correct |
7 ms |
344 KB |
Output is correct |
| 33 |
Correct |
13 ms |
344 KB |
Output is correct |
| 34 |
Correct |
8 ms |
344 KB |
Output is correct |
| 35 |
Correct |
12 ms |
344 KB |
Output is correct |
| 36 |
Correct |
10 ms |
344 KB |
Output is correct |
| 37 |
Correct |
6 ms |
344 KB |
Output is correct |
| 38 |
Correct |
9 ms |
440 KB |
Output is correct |
| 39 |
Correct |
8 ms |
344 KB |
Output is correct |
| 40 |
Correct |
8 ms |
344 KB |
Output is correct |
| 41 |
Correct |
8 ms |
344 KB |
Output is correct |
| 42 |
Correct |
5 ms |
344 KB |
Output is correct |
| 43 |
Correct |
5 ms |
344 KB |
Output is correct |
| 44 |
Correct |
5 ms |
344 KB |
Output is correct |
| 45 |
Correct |
6 ms |
344 KB |
Output is correct |
| 46 |
Correct |
6 ms |
344 KB |
Output is correct |
| 47 |
Correct |
6 ms |
344 KB |
Output is correct |
| 48 |
Correct |
7 ms |
600 KB |
Output is correct |
| 49 |
Correct |
8 ms |
344 KB |
Output is correct |
| 50 |
Correct |
7 ms |
344 KB |
Output is correct |
| 51 |
Correct |
6 ms |
344 KB |
Output is correct |
| 52 |
Correct |
7 ms |
344 KB |
Output is correct |
| 53 |
Correct |
7 ms |
436 KB |
Output is correct |
| 54 |
Correct |
5 ms |
596 KB |
Output is correct |
| 55 |
Correct |
6 ms |
344 KB |
Output is correct |
| 56 |
Correct |
5 ms |
344 KB |
Output is correct |
| 57 |
Correct |
7 ms |
344 KB |
Output is correct |
| 58 |
Correct |
7 ms |
344 KB |
Output is correct |
| 59 |
Correct |
7 ms |
344 KB |
Output is correct |
| 60 |
Correct |
6 ms |
344 KB |
Output is correct |
| 61 |
Correct |
7 ms |
344 KB |
Output is correct |
| 62 |
Correct |
9 ms |
440 KB |
Output is correct |
| 63 |
Correct |
7 ms |
444 KB |
Output is correct |
| 64 |
Correct |
7 ms |
344 KB |
Output is correct |
| 65 |
Correct |
7 ms |
344 KB |
Output is correct |
| 66 |
Correct |
10 ms |
644 KB |
Output is correct |
| 67 |
Correct |
10 ms |
344 KB |
Output is correct |
| 68 |
Correct |
7 ms |
344 KB |
Output is correct |
| 69 |
Correct |
9 ms |
344 KB |
Output is correct |
| 70 |
Correct |
8 ms |
440 KB |
Output is correct |
| 71 |
Correct |
6 ms |
344 KB |
Output is correct |
| 72 |
Correct |
7 ms |
444 KB |
Output is correct |
| 73 |
Correct |
8 ms |
344 KB |
Output is correct |
| 74 |
Correct |
7 ms |
344 KB |
Output is correct |
| 75 |
Correct |
8 ms |
340 KB |
Output is correct |
| 76 |
Correct |
6 ms |
344 KB |
Output is correct |
| 77 |
Correct |
8 ms |
604 KB |
Output is correct |
| 78 |
Correct |
9 ms |
440 KB |
Output is correct |
| 79 |
Correct |
8 ms |
344 KB |
Output is correct |
| 80 |
Correct |
10 ms |
344 KB |
Output is correct |
| 81 |
Correct |
8 ms |
436 KB |
Output is correct |
| 82 |
Correct |
7 ms |
436 KB |
Output is correct |
