// partially_correct/sol_birka0_D1_2N.cpp
#include "longesttrip.h"
#include <random>
#include <algorithm>
using namespace std;
vector<int> longest_trip(int N, int /*D*/)
{
srand(time(0));
std::vector<int> ids(N);
for (int i = 0; i < N; i++)
ids[i] = i;
random_shuffle(ids.begin(), ids.end());
vector<int> t1 = {ids[0]}, t2 = {ids[1]};
for (int j = 2; j < N; ++j)
{
int i = ids[j];
if (t2.empty())
{
t2 = {i};
continue;
}
bool add1 = are_connected({t1.back()}, {i});
bool add2 = are_connected({t2.back()}, {i});
if (add1 && add2)
{
t1.push_back(i);
while (!t2.empty())
{
t1.push_back(t2.back());
t2.pop_back();
}
}
else if (add1)
{
t1.push_back(i);
}
else if (add2)
{
t2.push_back(i);
}
else
{
while (!t2.empty())
{
t1.push_back(t2.back());
t2.pop_back();
}
t2 = {i};
}
}
if (t2.size() > t1.size())
swap(t1, t2);
if (t2.empty() || !are_connected(t1, t2))
{
return t1;
}
if (are_connected({t1.back()}, {t2[0]}))
{
t1.insert(t1.end(), t2.begin(), t2.end());
return t1;
}
reverse(t2.begin(), t2.end());
if (are_connected({t1.back()}, {t2[0]}))
{
t1.insert(t1.end(), t2.begin(), t2.end());
return t1;
}
reverse(t1.begin(), t1.end());
if (are_connected({t1.back()}, {t2[0]}))
{
t1.insert(t1.end(), t2.begin(), t2.end());
return t1;
}
reverse(t2.begin(), t2.end());
if (are_connected({t1.back()}, {t2[0]}))
{
t1.insert(t1.end(), t2.begin(), t2.end());
return t1;
}
int lo = 0, hi = t2.size();
while (lo + 1 < hi)
{
int mid = (lo + hi) / 2;
if (are_connected(t1, vector<int>(t2.begin() + mid, t2.begin() + hi)))
{
lo = mid;
}
else
{
hi = mid;
}
}
int x = lo;
lo = 0, hi = t1.size();
while (lo + 1 < hi)
{
int mid = (lo + hi) / 2;
if (are_connected({t2[x]}, vector<int>(t1.begin() + mid, t1.begin() + hi)))
{
lo = mid;
}
else
{
hi = mid;
}
}
int y = lo;
vector<int> t(t1.begin() + y + 1, t1.end());
t.insert(t.end(), t1.begin(), t1.begin() + y + 1);
t.insert(t.end(), t2.begin() + x, t2.end());
t.insert(t.end(), t2.begin(), t2.begin() + x);
return t;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
208 KB |
Output is correct |
| 2 |
Correct |
3 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 ms |
208 KB |
Output is correct |
| 2 |
Correct |
7 ms |
208 KB |
Output is correct |
| 3 |
Correct |
8 ms |
208 KB |
Output is correct |
| 4 |
Correct |
9 ms |
208 KB |
Output is correct |
| 5 |
Correct |
8 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
208 KB |
Output is correct |
| 2 |
Correct |
7 ms |
332 KB |
Output is correct |
| 3 |
Correct |
7 ms |
208 KB |
Output is correct |
| 4 |
Correct |
9 ms |
208 KB |
Output is correct |
| 5 |
Correct |
8 ms |
208 KB |
Output is correct |
| 6 |
Correct |
17 ms |
208 KB |
Output is correct |
| 7 |
Correct |
10 ms |
208 KB |
Output is correct |
| 8 |
Correct |
6 ms |
208 KB |
Output is correct |
| 9 |
Correct |
8 ms |
208 KB |
Output is correct |
| 10 |
Correct |
7 ms |
272 KB |
Output is correct |
| 11 |
Correct |
9 ms |
208 KB |
Output is correct |
| 12 |
Correct |
6 ms |
336 KB |
Output is correct |
| 13 |
Correct |
7 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
208 KB |
Output is correct |
| 2 |
Correct |
12 ms |
208 KB |
Output is correct |
| 3 |
Correct |
11 ms |
208 KB |
Output is correct |
| 4 |
Correct |
8 ms |
208 KB |
Output is correct |
| 5 |
Correct |
9 ms |
208 KB |
Output is correct |
| 6 |
Correct |
17 ms |
208 KB |
Output is correct |
| 7 |
Correct |
8 ms |
208 KB |
Output is correct |
| 8 |
Correct |
6 ms |
208 KB |
Output is correct |
| 9 |
Correct |
7 ms |
208 KB |
Output is correct |
| 10 |
Correct |
7 ms |
208 KB |
Output is correct |
| 11 |
Correct |
9 ms |
208 KB |
Output is correct |
| 12 |
Correct |
9 ms |
280 KB |
Output is correct |
| 13 |
Correct |
9 ms |
208 KB |
Output is correct |
| 14 |
Correct |
13 ms |
208 KB |
Output is correct |
| 15 |
Correct |
7 ms |
208 KB |
Output is correct |
| 16 |
Correct |
10 ms |
208 KB |
Output is correct |
| 17 |
Correct |
10 ms |
208 KB |
Output is correct |
| 18 |
Correct |
10 ms |
208 KB |
Output is correct |
| 19 |
Correct |
10 ms |
208 KB |
Output is correct |
| 20 |
Correct |
6 ms |
208 KB |
Output is correct |
| 21 |
Correct |
7 ms |
208 KB |
Output is correct |
| 22 |
Correct |
6 ms |
208 KB |
Output is correct |
| 23 |
Correct |
16 ms |
208 KB |
Output is correct |
| 24 |
Correct |
10 ms |
208 KB |
Output is correct |
| 25 |
Correct |
9 ms |
208 KB |
Output is correct |
| 26 |
Correct |
11 ms |
208 KB |
Output is correct |
| 27 |
Correct |
13 ms |
208 KB |
Output is correct |
| 28 |
Correct |
12 ms |
208 KB |
Output is correct |
| 29 |
Correct |
9 ms |
208 KB |
Output is correct |
| 30 |
Correct |
7 ms |
304 KB |
Output is correct |
| 31 |
Correct |
13 ms |
208 KB |
Output is correct |
| 32 |
Correct |
15 ms |
208 KB |
Output is correct |
| 33 |
Correct |
11 ms |
208 KB |
Output is correct |
| 34 |
Correct |
11 ms |
208 KB |
Output is correct |
| 35 |
Correct |
17 ms |
208 KB |
Output is correct |
| 36 |
Correct |
10 ms |
208 KB |
Output is correct |
| 37 |
Correct |
11 ms |
208 KB |
Output is correct |
| 38 |
Correct |
14 ms |
208 KB |
Output is correct |
| 39 |
Correct |
17 ms |
208 KB |
Output is correct |
| 40 |
Correct |
17 ms |
208 KB |
Output is correct |
| 41 |
Correct |
12 ms |
208 KB |
Output is correct |
| 42 |
Correct |
19 ms |
284 KB |
Output is correct |
| 43 |
Correct |
21 ms |
208 KB |
Output is correct |
| 44 |
Correct |
12 ms |
208 KB |
Output is correct |
| 45 |
Correct |
14 ms |
208 KB |
Output is correct |
| 46 |
Correct |
16 ms |
208 KB |
Output is correct |
| 47 |
Correct |
19 ms |
208 KB |
Output is correct |
| 48 |
Correct |
19 ms |
256 KB |
Output is correct |
| 49 |
Correct |
11 ms |
208 KB |
Output is correct |
| 50 |
Correct |
9 ms |
208 KB |
Output is correct |
| 51 |
Correct |
16 ms |
208 KB |
Output is correct |
| 52 |
Correct |
20 ms |
284 KB |
Output is correct |
| 53 |
Correct |
9 ms |
208 KB |
Output is correct |
| 54 |
Correct |
9 ms |
292 KB |
Output is correct |
| 55 |
Correct |
14 ms |
284 KB |
Output is correct |
| 56 |
Correct |
16 ms |
208 KB |
Output is correct |
| 57 |
Correct |
11 ms |
208 KB |
Output is correct |
| 58 |
Correct |
17 ms |
292 KB |
Output is correct |
| 59 |
Correct |
20 ms |
336 KB |
Output is correct |
| 60 |
Correct |
14 ms |
316 KB |
Output is correct |
| 61 |
Correct |
13 ms |
208 KB |
Output is correct |
| 62 |
Correct |
11 ms |
208 KB |
Output is correct |
| 63 |
Correct |
15 ms |
292 KB |
Output is correct |
| 64 |
Correct |
20 ms |
296 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
208 KB |
Output is correct |
| 2 |
Correct |
8 ms |
208 KB |
Output is correct |
| 3 |
Correct |
7 ms |
208 KB |
Output is correct |
| 4 |
Correct |
5 ms |
208 KB |
Output is correct |
| 5 |
Correct |
5 ms |
208 KB |
Output is correct |
| 6 |
Correct |
14 ms |
208 KB |
Output is correct |
| 7 |
Correct |
9 ms |
256 KB |
Output is correct |
| 8 |
Correct |
8 ms |
208 KB |
Output is correct |
| 9 |
Correct |
5 ms |
284 KB |
Output is correct |
| 10 |
Correct |
5 ms |
208 KB |
Output is correct |
| 11 |
Correct |
9 ms |
208 KB |
Output is correct |
| 12 |
Correct |
7 ms |
208 KB |
Output is correct |
| 13 |
Correct |
7 ms |
244 KB |
Output is correct |
| 14 |
Correct |
10 ms |
208 KB |
Output is correct |
| 15 |
Correct |
12 ms |
208 KB |
Output is correct |
| 16 |
Correct |
14 ms |
208 KB |
Output is correct |
| 17 |
Correct |
14 ms |
208 KB |
Output is correct |
| 18 |
Correct |
8 ms |
208 KB |
Output is correct |
| 19 |
Correct |
10 ms |
208 KB |
Output is correct |
| 20 |
Correct |
9 ms |
208 KB |
Output is correct |
| 21 |
Correct |
10 ms |
208 KB |
Output is correct |
| 22 |
Correct |
12 ms |
208 KB |
Output is correct |
| 23 |
Correct |
12 ms |
208 KB |
Output is correct |
| 24 |
Correct |
10 ms |
208 KB |
Output is correct |
| 25 |
Correct |
12 ms |
208 KB |
Output is correct |
| 26 |
Correct |
14 ms |
208 KB |
Output is correct |
| 27 |
Correct |
15 ms |
208 KB |
Output is correct |
| 28 |
Correct |
12 ms |
208 KB |
Output is correct |
| 29 |
Correct |
9 ms |
284 KB |
Output is correct |
| 30 |
Correct |
11 ms |
208 KB |
Output is correct |
| 31 |
Correct |
15 ms |
208 KB |
Output is correct |
| 32 |
Correct |
10 ms |
208 KB |
Output is correct |
| 33 |
Correct |
14 ms |
208 KB |
Output is correct |
| 34 |
Correct |
12 ms |
208 KB |
Output is correct |
| 35 |
Correct |
13 ms |
208 KB |
Output is correct |
| 36 |
Correct |
12 ms |
208 KB |
Output is correct |
| 37 |
Correct |
9 ms |
284 KB |
Output is correct |
| 38 |
Correct |
10 ms |
208 KB |
Output is correct |
| 39 |
Correct |
19 ms |
208 KB |
Output is correct |
| 40 |
Correct |
8 ms |
296 KB |
Output is correct |
| 41 |
Correct |
11 ms |
292 KB |
Output is correct |
| 42 |
Correct |
16 ms |
292 KB |
Output is correct |
| 43 |
Correct |
12 ms |
208 KB |
Output is correct |
| 44 |
Correct |
10 ms |
288 KB |
Output is correct |
| 45 |
Correct |
8 ms |
208 KB |
Output is correct |
| 46 |
Correct |
5 ms |
208 KB |
Output is correct |
| 47 |
Partially correct |
13 ms |
208 KB |
Output is partially correct |
| 48 |
Partially correct |
14 ms |
208 KB |
Output is partially correct |
| 49 |
Partially correct |
12 ms |
256 KB |
Output is partially correct |
| 50 |
Partially correct |
18 ms |
208 KB |
Output is partially correct |
| 51 |
Partially correct |
16 ms |
208 KB |
Output is partially correct |
| 52 |
Partially correct |
17 ms |
208 KB |
Output is partially correct |
| 53 |
Partially correct |
12 ms |
208 KB |
Output is partially correct |
| 54 |
Partially correct |
12 ms |
292 KB |
Output is partially correct |
| 55 |
Partially correct |
12 ms |
208 KB |
Output is partially correct |
| 56 |
Partially correct |
14 ms |
208 KB |
Output is partially correct |
| 57 |
Partially correct |
19 ms |
208 KB |
Output is partially correct |
| 58 |
Partially correct |
16 ms |
208 KB |
Output is partially correct |
| 59 |
Partially correct |
14 ms |
208 KB |
Output is partially correct |
| 60 |
Partially correct |
19 ms |
208 KB |
Output is partially correct |
| 61 |
Partially correct |
18 ms |
208 KB |
Output is partially correct |
| 62 |
Partially correct |
11 ms |
292 KB |
Output is partially correct |
| 63 |
Partially correct |
19 ms |
208 KB |
Output is partially correct |
| 64 |
Partially correct |
16 ms |
292 KB |
Output is partially correct |
| 65 |
Partially correct |
17 ms |
208 KB |
Output is partially correct |
| 66 |
Partially correct |
16 ms |
288 KB |
Output is partially correct |
| 67 |
Partially correct |
18 ms |
280 KB |
Output is partially correct |
| 68 |
Partially correct |
20 ms |
276 KB |
Output is partially correct |
| 69 |
Partially correct |
19 ms |
208 KB |
Output is partially correct |
| 70 |
Partially correct |
12 ms |
288 KB |
Output is partially correct |
| 71 |
Partially correct |
18 ms |
208 KB |
Output is partially correct |
| 72 |
Partially correct |
14 ms |
292 KB |
Output is partially correct |
| 73 |
Partially correct |
19 ms |
208 KB |
Output is partially correct |
| 74 |
Partially correct |
18 ms |
208 KB |
Output is partially correct |
| 75 |
Partially correct |
18 ms |
256 KB |
Output is partially correct |
| 76 |
Partially correct |
8 ms |
292 KB |
Output is partially correct |
| 77 |
Partially correct |
11 ms |
332 KB |
Output is partially correct |
| 78 |
Partially correct |
17 ms |
208 KB |
Output is partially correct |
| 79 |
Partially correct |
16 ms |
208 KB |
Output is partially correct |
| 80 |
Partially correct |
19 ms |
208 KB |
Output is partially correct |
| 81 |
Partially correct |
19 ms |
208 KB |
Output is partially correct |
| 82 |
Partially correct |
14 ms |
208 KB |
Output is partially correct |
