| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 839743 | 2023-08-30T15:49:43 Z | model_code | Longest Trip (IOI23_longesttrip) | C++17 | 86 ms | 464 KB |
// partially_correct/sol_na_D1_nlogn.cpp
#include "longesttrip.h"
#include <deque>
#include <functional>
#include <algorithm>
#include <iostream>
#include <cassert>
bool are_connected2(std::vector<int> a, std::vector<int> b)
{
// for(auto i:a) std::cerr<<i<<" ";std::cerr<<"a\n";
// for(auto i:b) std::cerr<<i<<" ";std::cerr<<"b\n";
return are_connected(a, b);
}
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());
std::vector<std::deque<int>> lst;
int i;
auto make = [&]() -> std::vector<int>
{
if (lst.back().size() == 1)
return {lst.back()[0]};
return {lst.back()[0], lst.back().back()};
};
auto rest = [&]() -> std::vector<int>
{
std::vector<int> ans;
for (int j = i + 1; j < N; ++j)
{
ans.push_back(ids[j]);
}
return ans;
};
for (i = 0; i < N; i++)
{
if (i > 0)
{
auto x = rest();
x.push_back(ids[i]);
lst.push_back(std::deque<int>(x.begin(), x.end()));
break;
}
int id = ids[i];
lst.push_back({id});
while (!rest().empty() && are_connected2(make(), rest()))
{
auto l = rest();
int until = int(l.size()) - 1;
for (int j = 20; j >= 0; j--)
{
if (until - (1 << j) >= 0)
{
auto other = std::vector<int>(l.begin(), l.begin() + until - (1 << j) + 1);
if (are_connected2(make(), other))
{
until -= (1 << j);
}
}
}
if (are_connected2({lst.back()[0]}, {l[until]}))
{
lst.back().push_front(l[until]);
}
else
{
lst.back().push_back(l[until]);
}
std::swap(ids[i + 1], ids[i + 1 + until]);
i++;
if (i == N)
{
break;
}
}
}
std::function<std::vector<int>(std::deque<int>, std::deque<int>)> solve;
solve = [&](std::deque<int> A, std::deque<int> B) -> std::vector<int>
{
if (A.size() > B.size())
A.swap(B);
if (A.size() == 0)
return std::vector<int>(B.begin(), B.end());
bool x = are_connected({A.back()}, {B.front()});
bool y = are_connected({A.back()}, {B.back()});
if (x)
{
while (!A.empty())
{
B.push_front(A.back());
A.pop_back();
}
return std::vector<int>(B.begin(), B.end());
}
else if (y)
{
while (!A.empty())
{
B.push_back(A.back());
A.pop_back();
}
return std::vector<int>(B.begin(), B.end());
}
else
{
if (are_connected(std::vector<int>(A.begin(), A.end()), std::vector<int>(B.begin(), B.end())))
{
int L = 0, R = A.size() - 1;
auto BB = std::vector<int>(B.begin(), B.end());
while (L < R)
{
int mid = (L + R) / 2;
if (are_connected(std::vector<int>(A.begin(), A.begin() + mid + 1), BB))
{
R = mid;
}
else
{
L = mid + 1;
}
}
int firstA = L;
L = 0;
R = B.size() - 1;
auto AA = std::vector<int>(A.begin(), A.begin() + firstA + 1);
while (L < R)
{
int mid = (L + R) / 2;
if (are_connected(AA, std::vector<int>(B.begin(), B.begin() + mid + 1)))
{
R = mid;
}
else
{
L = mid + 1;
}
}
int firstB = L;
while (firstB > 0)
{
B.push_back(B.front());
B.pop_front();
firstB--;
}
std::deque<int> lst;
if (firstA >= (int)A.size() / 2)
{
while (firstA >= 0)
{
lst.push_back(A.front());
A.pop_front();
firstA--;
}
}
else
{
while (firstA < (int)A.size())
{
lst.push_front(A.back());
A.pop_back();
}
reverse(lst.begin(), lst.end());
}
while (!lst.empty())
{
B.push_front(lst.back());
lst.pop_back();
}
return solve(A, B);
}
else
{
return std::vector<int>(B.begin(), B.end());
}
}
};
return (lst.size() == 1 ? std::vector<int>(lst[0].begin(), lst[0].end()) : solve(lst[0], lst[1]));
}
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 1 ms | 208 KB | Output is correct |
| 2 | Correct | 13 ms | 336 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 13 ms | 208 KB | Output is correct |
| 2 | Correct | 14 ms | 208 KB | Output is correct |
| 3 | Correct | 34 ms | 208 KB | Output is correct |
| 4 | Correct | 42 ms | 316 KB | Output is correct |
| 5 | Correct | 67 ms | 348 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 18 ms | 208 KB | Output is correct |
| 2 | Correct | 30 ms | 208 KB | Output is correct |
| 3 | Correct | 36 ms | 208 KB | Output is correct |
| 4 | Correct | 47 ms | 208 KB | Output is correct |
| 5 | Correct | 67 ms | 348 KB | Output is correct |
| 6 | Correct | 14 ms | 208 KB | Output is correct |
| 7 | Correct | 27 ms | 208 KB | Output is correct |
| 8 | Correct | 35 ms | 208 KB | Output is correct |
| 9 | Correct | 41 ms | 320 KB | Output is correct |
| 10 | Correct | 57 ms | 348 KB | Output is correct |
| 11 | Correct | 59 ms | 336 KB | Output is correct |
| 12 | Correct | 54 ms | 336 KB | Output is correct |
| 13 | Correct | 57 ms | 336 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 14 ms | 208 KB | Output is correct |
| 2 | Correct | 29 ms | 208 KB | Output is correct |
| 3 | Correct | 34 ms | 208 KB | Output is correct |
| 4 | Correct | 51 ms | 208 KB | Output is correct |
| 5 | Correct | 56 ms | 344 KB | Output is correct |
| 6 | Correct | 13 ms | 208 KB | Output is correct |
| 7 | Correct | 26 ms | 208 KB | Output is correct |
| 8 | Correct | 34 ms | 256 KB | Output is correct |
| 9 | Correct | 40 ms | 208 KB | Output is correct |
| 10 | Correct | 54 ms | 356 KB | Output is correct |
| 11 | Correct | 59 ms | 336 KB | Output is correct |
| 12 | Correct | 56 ms | 352 KB | Output is correct |
| 13 | Correct | 60 ms | 336 KB | Output is correct |
| 14 | Correct | 14 ms | 208 KB | Output is correct |
| 15 | Correct | 15 ms | 208 KB | Output is correct |
| 16 | Correct | 31 ms | 208 KB | Output is correct |
| 17 | Correct | 38 ms | 308 KB | Output is correct |
| 18 | Correct | 35 ms | 284 KB | Output is correct |
| 19 | Correct | 37 ms | 304 KB | Output is correct |
| 20 | Correct | 47 ms | 308 KB | Output is correct |
| 21 | Correct | 49 ms | 348 KB | Output is correct |
| 22 | Correct | 57 ms | 356 KB | Output is correct |
| 23 | Correct | 58 ms | 340 KB | Output is correct |
| 24 | Correct | 58 ms | 348 KB | Output is correct |
| 25 | Correct | 20 ms | 208 KB | Output is correct |
| 26 | Correct | 13 ms | 208 KB | Output is correct |
| 27 | Correct | 25 ms | 208 KB | Output is correct |
| 28 | Correct | 26 ms | 208 KB | Output is correct |
| 29 | Correct | 22 ms | 208 KB | Output is correct |
| 30 | Correct | 28 ms | 300 KB | Output is correct |
| 31 | Correct | 37 ms | 208 KB | Output is correct |
| 32 | Correct | 38 ms | 208 KB | Output is correct |
| 33 | Correct | 29 ms | 304 KB | Output is correct |
| 34 | Correct | 46 ms | 208 KB | Output is correct |
| 35 | Correct | 41 ms | 292 KB | Output is correct |
| 36 | Correct | 40 ms | 352 KB | Output is correct |
| 37 | Correct | 67 ms | 332 KB | Output is correct |
| 38 | Correct | 74 ms | 336 KB | Output is correct |
| 39 | Correct | 76 ms | 336 KB | Output is correct |
| 40 | Correct | 59 ms | 336 KB | Output is correct |
| 41 | Correct | 56 ms | 464 KB | Output is correct |
| 42 | Correct | 61 ms | 336 KB | Output is correct |
| 43 | Correct | 55 ms | 336 KB | Output is correct |
| 44 | Correct | 62 ms | 336 KB | Output is correct |
| 45 | Correct | 16 ms | 208 KB | Output is correct |
| 46 | Correct | 12 ms | 208 KB | Output is correct |
| 47 | Correct | 24 ms | 208 KB | Output is correct |
| 48 | Correct | 16 ms | 208 KB | Output is correct |
| 49 | Correct | 30 ms | 208 KB | Output is correct |
| 50 | Correct | 54 ms | 304 KB | Output is correct |
| 51 | Correct | 40 ms | 208 KB | Output is correct |
| 52 | Correct | 47 ms | 208 KB | Output is correct |
| 53 | Correct | 45 ms | 308 KB | Output is correct |
| 54 | Correct | 49 ms | 208 KB | Output is correct |
| 55 | Correct | 45 ms | 312 KB | Output is correct |
| 56 | Correct | 62 ms | 432 KB | Output is correct |
| 57 | Correct | 69 ms | 344 KB | Output is correct |
| 58 | Correct | 76 ms | 344 KB | Output is correct |
| 59 | Correct | 75 ms | 356 KB | Output is correct |
| 60 | Correct | 73 ms | 336 KB | Output is correct |
| 61 | Correct | 65 ms | 328 KB | Output is correct |
| 62 | Correct | 61 ms | 332 KB | Output is correct |
| 63 | Correct | 83 ms | 340 KB | Output is correct |
| 64 | Correct | 59 ms | 328 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 17 ms | 208 KB | Output is correct |
| 2 | Correct | 25 ms | 208 KB | Output is correct |
| 3 | Correct | 25 ms | 336 KB | Output is correct |
| 4 | Partially correct | 49 ms | 208 KB | Output is partially correct |
| 5 | Partially correct | 54 ms | 336 KB | Output is partially correct |
| 6 | Correct | 13 ms | 208 KB | Output is correct |
| 7 | Correct | 20 ms | 208 KB | Output is correct |
| 8 | Correct | 28 ms | 208 KB | Output is correct |
| 9 | Partially correct | 38 ms | 208 KB | Output is partially correct |
| 10 | Partially correct | 52 ms | 292 KB | Output is partially correct |
| 11 | Partially correct | 52 ms | 336 KB | Output is partially correct |
| 12 | Partially correct | 64 ms | 336 KB | Output is partially correct |
| 13 | Partially correct | 53 ms | 336 KB | Output is partially correct |
| 14 | Correct | 16 ms | 208 KB | Output is correct |
| 15 | Correct | 20 ms | 208 KB | Output is correct |
| 16 | Correct | 30 ms | 208 KB | Output is correct |
| 17 | Correct | 31 ms | 308 KB | Output is correct |
| 18 | Correct | 32 ms | 284 KB | Output is correct |
| 19 | Partially correct | 38 ms | 208 KB | Output is partially correct |
| 20 | Partially correct | 44 ms | 292 KB | Output is partially correct |
| 21 | Correct | 15 ms | 208 KB | Output is correct |
| 22 | Correct | 15 ms | 208 KB | Output is correct |
| 23 | Correct | 21 ms | 208 KB | Output is correct |
| 24 | Correct | 26 ms | 208 KB | Output is correct |
| 25 | Correct | 27 ms | 208 KB | Output is correct |
| 26 | Correct | 45 ms | 208 KB | Output is correct |
| 27 | Correct | 38 ms | 208 KB | Output is correct |
| 28 | Correct | 32 ms | 208 KB | Output is correct |
| 29 | Partially correct | 47 ms | 212 KB | Output is partially correct |
| 30 | Partially correct | 37 ms | 208 KB | Output is partially correct |
| 31 | Partially correct | 53 ms | 208 KB | Output is partially correct |
| 32 | Correct | 15 ms | 208 KB | Output is correct |
| 33 | Correct | 22 ms | 332 KB | Output is correct |
| 34 | Correct | 24 ms | 208 KB | Output is correct |
| 35 | Correct | 23 ms | 208 KB | Output is correct |
| 36 | Correct | 28 ms | 208 KB | Output is correct |
| 37 | Correct | 32 ms | 304 KB | Output is correct |
| 38 | Correct | 52 ms | 208 KB | Output is correct |
| 39 | Correct | 43 ms | 208 KB | Output is correct |
| 40 | Partially correct | 44 ms | 208 KB | Output is partially correct |
| 41 | Partially correct | 44 ms | 208 KB | Output is partially correct |
| 42 | Partially correct | 49 ms | 308 KB | Output is partially correct |
| 43 | Partially correct | 62 ms | 336 KB | Output is partially correct |
| 44 | Partially correct | 69 ms | 336 KB | Output is partially correct |
| 45 | Partially correct | 53 ms | 336 KB | Output is partially correct |
| 46 | Partially correct | 60 ms | 344 KB | Output is partially correct |
| 47 | Partially correct | 55 ms | 332 KB | Output is partially correct |
| 48 | Partially correct | 73 ms | 332 KB | Output is partially correct |
| 49 | Partially correct | 58 ms | 336 KB | Output is partially correct |
| 50 | Partially correct | 79 ms | 332 KB | Output is partially correct |
| 51 | Partially correct | 57 ms | 336 KB | Output is partially correct |
| 52 | Partially correct | 62 ms | 392 KB | Output is partially correct |
| 53 | Partially correct | 61 ms | 336 KB | Output is partially correct |
| 54 | Partially correct | 55 ms | 336 KB | Output is partially correct |
| 55 | Partially correct | 55 ms | 336 KB | Output is partially correct |
| 56 | Partially correct | 55 ms | 340 KB | Output is partially correct |
| 57 | Partially correct | 47 ms | 356 KB | Output is partially correct |
| 58 | Partially correct | 73 ms | 336 KB | Output is partially correct |
| 59 | Partially correct | 54 ms | 336 KB | Output is partially correct |
| 60 | Partially correct | 55 ms | 336 KB | Output is partially correct |
| 61 | Partially correct | 61 ms | 340 KB | Output is partially correct |
| 62 | Partially correct | 73 ms | 336 KB | Output is partially correct |
| 63 | Partially correct | 63 ms | 340 KB | Output is partially correct |
| 64 | Partially correct | 65 ms | 336 KB | Output is partially correct |
| 65 | Partially correct | 73 ms | 384 KB | Output is partially correct |
| 66 | Partially correct | 59 ms | 340 KB | Output is partially correct |
| 67 | Partially correct | 67 ms | 324 KB | Output is partially correct |
| 68 | Partially correct | 62 ms | 336 KB | Output is partially correct |
| 69 | Partially correct | 71 ms | 324 KB | Output is partially correct |
| 70 | Partially correct | 86 ms | 336 KB | Output is partially correct |
| 71 | Partially correct | 65 ms | 332 KB | Output is partially correct |
| 72 | Partially correct | 70 ms | 332 KB | Output is partially correct |
| 73 | Partially correct | 63 ms | 344 KB | Output is partially correct |
| 74 | Partially correct | 62 ms | 336 KB | Output is partially correct |
| 75 | Partially correct | 66 ms | 340 KB | Output is partially correct |
| 76 | Partially correct | 59 ms | 344 KB | Output is partially correct |
| 77 | Partially correct | 48 ms | 336 KB | Output is partially correct |
| 78 | Partially correct | 77 ms | 336 KB | Output is partially correct |
| 79 | Partially correct | 62 ms | 356 KB | Output is partially correct |
| 80 | Partially correct | 64 ms | 336 KB | Output is partially correct |
| 81 | Partially correct | 68 ms | 332 KB | Output is partially correct |
| 82 | Partially correct | 66 ms | 336 KB | Output is partially correct |