| # | Submission time | Handle | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 1016461 | 2024-07-08T06:09:53 Z | pavement | Longest Trip (IOI23_longesttrip) | C++17 | 16 ms | 600 KB |
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
#define pb push_back
vector<int> longest_trip(int N, int D) {
vector<int> ret;
if (D == 3) {
ret.resize(N);
iota(ret.begin(), ret.end(), 0);
} else if (D == 2) {
deque<int> dq;
int st = -1;
dq.pb(0);
if (are_connected({0}, {1})) {
dq.pb(1);
st = 2;
} else {
dq.pb(2);
dq.pb(1);
st = 3;
}
for (int i = st; i < N; i++) {
if (are_connected({i}, {dq.back()})) {
dq.pb(i);
} else {
dq.push_front(i);
}
}
ret = vector<int>(dq.begin(), dq.end());
} else {
deque<int> ch1, ch2;
ch1.pb(0);
int i = 1;
for (; i < N; i++) {
vector<int> tmp;
if (ch1.size() == 1) {
tmp.pb(ch1.front());
} else {
tmp.pb(ch1.front());
tmp.pb(ch1.back());
}
if (are_connected(tmp, {i})) {
if (ch1.size() != 1 && are_connected({ch1.front()}, {i})) {
ch1.push_front(i);
} else {
ch1.pb(i);
}
} else {
ch2.pb(i);
break;
}
}
for (i++; i < N; i++) {
if (are_connected({ch1.back()}, {i})) {
ch1.pb(i);
if (ch2.size() == 1) {
if (are_connected({ch2.back()}, {i})) {
ch1.pb(ch2.back());
ch2.pop_back();
}
} else if (!ch2.empty()) {
if (are_connected({ch2.front(), ch2.back()}, {i})) {
if (are_connected({ch2.back()}, {i})) {
while (!ch2.empty()) {
ch1.pb(ch2.back());
ch2.pop_back();
}
} else {
while (!ch2.empty()) {
ch1.pb(ch2.front());
ch2.pop_front();
}
}
}
}
} else {
ch2.pb(i);
if (are_connected({ch1.front()}, {i})) {
while (!ch2.empty()) {
ch1.push_front(ch2.back());
ch2.pop_back();
}
}
}
}
vector<int> vec1(ch1.begin(), ch1.end()), vec2(ch2.begin(), ch2.end());
if (!vec1.empty() && !vec2.empty() && are_connected(vec1, vec2)) {
int lo = 0, hi = (int)vec1.size() - 1, idx1 = 0;
while (lo < hi) {
int mid = (lo + hi) / 2;
if (are_connected(vector<int>(vec1.begin() + lo, vec1.begin() + mid + 1), vec2)) {
idx1 = mid;
hi = mid;
} else {
idx1 = mid + 1;
lo = mid + 1;
}
}
lo = 0, hi = (int)vec2.size() - 1;
int idx2 = 0;
while (lo < hi) {
int mid = (lo + hi) / 2;
if (are_connected(vector<int>(vec2.begin() + lo, vec2.begin() + mid + 1), {vec1[idx1]})) {
idx2 = mid;
hi = mid;
} else {
idx2 = mid + 1;
lo = mid + 1;
}
}
// vec1[idx1] and vec2[idx2] are connected
for (int i = (idx1 + 1) % (int)vec1.size(); i != idx1; i = (i + 1) % (int)vec1.size()) {
ret.pb(vec1[i]);
}
ret.pb(vec1[idx1]);
for (int i = idx2; (int)ret.size() != N; i = (i + 1) % (int)vec2.size()) {
ret.pb(vec2[i]);
}
} else {
if (vec1.size() > vec2.size()) {
ret = vec1;
} else {
ret = vec2;
}
}
}
return ret;
}
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 0 ms | 344 KB | Output is correct |
| 2 | Correct | 2 ms | 344 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 2 ms | 344 KB | Output is correct |
| 2 | Correct | 1 ms | 344 KB | Output is correct |
| 3 | Correct | 1 ms | 344 KB | Output is correct |
| 4 | Correct | 0 ms | 344 KB | Output is correct |
| 5 | Correct | 0 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 | 6 ms | 344 KB | Output is correct |
| 4 | Correct | 7 ms | 344 KB | Output is correct |
| 5 | Correct | 5 ms | 344 KB | Output is correct |
| 6 | Correct | 6 ms | 344 KB | Output is correct |
| 7 | Correct | 5 ms | 344 KB | Output is correct |
| 8 | Correct | 6 ms | 344 KB | Output is correct |
| 9 | Correct | 5 ms | 344 KB | Output is correct |
| 10 | Correct | 6 ms | 344 KB | Output is correct |
| 11 | Correct | 5 ms | 596 KB | Output is correct |
| 12 | Correct | 5 ms | 344 KB | Output is correct |
| 13 | Correct | 7 ms | 436 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 8 ms | 344 KB | Output is correct |
| 2 | Correct | 9 ms | 344 KB | Output is correct |
| 3 | Correct | 8 ms | 344 KB | Output is correct |
| 4 | Correct | 10 ms | 344 KB | Output is correct |
| 5 | Correct | 10 ms | 344 KB | Output is correct |
| 6 | Correct | 8 ms | 344 KB | Output is correct |
| 7 | Correct | 12 ms | 344 KB | Output is correct |
| 8 | Correct | 10 ms | 344 KB | Output is correct |
| 9 | Correct | 11 ms | 344 KB | Output is correct |
| 10 | Correct | 16 ms | 600 KB | Output is correct |
| 11 | Correct | 9 ms | 344 KB | Output is correct |
| 12 | Correct | 12 ms | 344 KB | Output is correct |
| 13 | Correct | 13 ms | 436 KB | Output is correct |
| 14 | Correct | 11 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 | 9 ms | 344 KB | Output is correct |
| 18 | Correct | 11 ms | 344 KB | Output is correct |
| 19 | Correct | 8 ms | 344 KB | Output is correct |
| 20 | Correct | 7 ms | 344 KB | Output is correct |
| 21 | Correct | 9 ms | 344 KB | Output is correct |
| 22 | Correct | 5 ms | 344 KB | Output is correct |
| 23 | Correct | 7 ms | 344 KB | Output is correct |
| 24 | Correct | 5 ms | 344 KB | Output is correct |
| 25 | Correct | 8 ms | 344 KB | Output is correct |
| 26 | Correct | 7 ms | 344 KB | Output is correct |
| 27 | Correct | 11 ms | 344 KB | Output is correct |
| 28 | Correct | 8 ms | 344 KB | Output is correct |
| 29 | Correct | 8 ms | 344 KB | Output is correct |
| 30 | Correct | 9 ms | 340 KB | Output is correct |
| 31 | Correct | 12 ms | 344 KB | Output is correct |
| 32 | Correct | 6 ms | 344 KB | Output is correct |
| 33 | Correct | 11 ms | 344 KB | Output is correct |
| 34 | Correct | 12 ms | 344 KB | Output is correct |
| 35 | Correct | 9 ms | 340 KB | Output is correct |
| 36 | Correct | 13 ms | 432 KB | Output is correct |
| 37 | Correct | 12 ms | 344 KB | Output is correct |
| 38 | Correct | 13 ms | 344 KB | Output is correct |
| 39 | Correct | 12 ms | 344 KB | Output is correct |
| 40 | Correct | 10 ms | 344 KB | Output is correct |
| 41 | Correct | 12 ms | 344 KB | Output is correct |
| 42 | Correct | 8 ms | 344 KB | Output is correct |
| 43 | Correct | 10 ms | 344 KB | Output is correct |
| 44 | Correct | 9 ms | 344 KB | Output is correct |
| 45 | Correct | 8 ms | 344 KB | Output is correct |
| 46 | Correct | 7 ms | 344 KB | Output is correct |
| 47 | Correct | 8 ms | 344 KB | Output is correct |
| 48 | Correct | 11 ms | 344 KB | Output is correct |
| 49 | Correct | 7 ms | 344 KB | Output is correct |
| 50 | Correct | 9 ms | 344 KB | Output is correct |
| 51 | Correct | 11 ms | 344 KB | Output is correct |
| 52 | Correct | 8 ms | 344 KB | Output is correct |
| 53 | Correct | 10 ms | 344 KB | Output is correct |
| 54 | Correct | 7 ms | 344 KB | Output is correct |
| 55 | Correct | 12 ms | 344 KB | Output is correct |
| 56 | Correct | 7 ms | 344 KB | Output is correct |
| 57 | Correct | 13 ms | 344 KB | Output is correct |
| 58 | Correct | 9 ms | 344 KB | Output is correct |
| 59 | Correct | 13 ms | 344 KB | Output is correct |
| 60 | Correct | 12 ms | 600 KB | Output is correct |
| 61 | Correct | 13 ms | 428 KB | Output is correct |
| 62 | Correct | 10 ms | 592 KB | Output is correct |
| 63 | Correct | 12 ms | 600 KB | Output is correct |
| 64 | Correct | 9 ms | 344 KB | Output is correct |
| # | Verdict | Execution time | Memory | Grader output |
|---|---|---|---|---|
| 1 | Correct | 7 ms | 344 KB | Output is correct |
| 2 | Correct | 13 ms | 344 KB | Output is correct |
| 3 | Correct | 10 ms | 344 KB | Output is correct |
| 4 | Correct | 14 ms | 344 KB | Output is correct |
| 5 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 6 | Correct | 9 ms | 344 KB | Output is correct |
| 7 | Correct | 8 ms | 344 KB | Output is correct |
| 8 | Correct | 8 ms | 344 KB | Output is correct |
| 9 | Correct | 8 ms | 344 KB | Output is correct |
| 10 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 11 | Partially correct | 9 ms | 344 KB | Output is partially correct |
| 12 | Partially correct | 8 ms | 344 KB | Output is partially correct |
| 13 | Partially correct | 12 ms | 340 KB | Output is partially correct |
| 14 | Correct | 9 ms | 344 KB | Output is correct |
| 15 | Correct | 11 ms | 344 KB | Output is correct |
| 16 | Correct | 8 ms | 344 KB | Output is correct |
| 17 | Correct | 8 ms | 344 KB | Output is correct |
| 18 | Correct | 7 ms | 344 KB | Output is correct |
| 19 | Correct | 7 ms | 344 KB | Output is correct |
| 20 | Correct | 4 ms | 344 KB | Output is correct |
| 21 | Correct | 8 ms | 344 KB | Output is correct |
| 22 | Correct | 5 ms | 344 KB | Output is correct |
| 23 | Correct | 9 ms | 344 KB | Output is correct |
| 24 | Correct | 7 ms | 344 KB | Output is correct |
| 25 | Correct | 9 ms | 344 KB | Output is correct |
| 26 | Correct | 10 ms | 344 KB | Output is correct |
| 27 | Correct | 10 ms | 344 KB | Output is correct |
| 28 | Correct | 12 ms | 344 KB | Output is correct |
| 29 | Correct | 13 ms | 344 KB | Output is correct |
| 30 | Correct | 12 ms | 344 KB | Output is correct |
| 31 | Correct | 10 ms | 344 KB | Output is correct |
| 32 | Correct | 7 ms | 344 KB | Output is correct |
| 33 | Correct | 9 ms | 344 KB | Output is correct |
| 34 | Correct | 11 ms | 344 KB | Output is correct |
| 35 | Correct | 9 ms | 344 KB | Output is correct |
| 36 | Correct | 11 ms | 344 KB | Output is correct |
| 37 | Correct | 10 ms | 344 KB | Output is correct |
| 38 | Correct | 10 ms | 344 KB | Output is correct |
| 39 | Correct | 10 ms | 344 KB | Output is correct |
| 40 | Correct | 10 ms | 344 KB | Output is correct |
| 41 | Correct | 8 ms | 344 KB | Output is correct |
| 42 | Correct | 10 ms | 344 KB | Output is correct |
| 43 | Partially correct | 6 ms | 344 KB | Output is partially correct |
| 44 | Correct | 6 ms | 600 KB | Output is correct |
| 45 | Partially correct | 8 ms | 344 KB | Output is partially correct |
| 46 | Partially correct | 9 ms | 344 KB | Output is partially correct |
| 47 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 48 | Partially correct | 8 ms | 344 KB | Output is partially correct |
| 49 | Partially correct | 12 ms | 344 KB | Output is partially correct |
| 50 | Partially correct | 11 ms | 344 KB | Output is partially correct |
| 51 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 52 | Partially correct | 10 ms | 436 KB | Output is partially correct |
| 53 | Partially correct | 7 ms | 344 KB | Output is partially correct |
| 54 | Partially correct | 6 ms | 600 KB | Output is partially correct |
| 55 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 56 | Partially correct | 8 ms | 344 KB | Output is partially correct |
| 57 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 58 | Partially correct | 14 ms | 344 KB | Output is partially correct |
| 59 | Partially correct | 8 ms | 344 KB | Output is partially correct |
| 60 | Partially correct | 11 ms | 344 KB | Output is partially correct |
| 61 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 62 | Partially correct | 13 ms | 344 KB | Output is partially correct |
| 63 | Partially correct | 11 ms | 344 KB | Output is partially correct |
| 64 | Partially correct | 15 ms | 600 KB | Output is partially correct |
| 65 | Partially correct | 8 ms | 596 KB | Output is partially correct |
| 66 | Partially correct | 11 ms | 344 KB | Output is partially correct |
| 67 | Partially correct | 10 ms | 600 KB | Output is partially correct |
| 68 | Partially correct | 9 ms | 344 KB | Output is partially correct |
| 69 | Partially correct | 13 ms | 344 KB | Output is partially correct |
| 70 | Partially correct | 7 ms | 344 KB | Output is partially correct |
| 71 | Partially correct | 13 ms | 344 KB | Output is partially correct |
| 72 | Partially correct | 11 ms | 600 KB | Output is partially correct |
| 73 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 74 | Partially correct | 14 ms | 344 KB | Output is partially correct |
| 75 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 76 | Partially correct | 9 ms | 344 KB | Output is partially correct |
| 77 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 78 | Partially correct | 10 ms | 344 KB | Output is partially correct |
| 79 | Partially correct | 13 ms | 344 KB | Output is partially correct |
| 80 | Partially correct | 11 ms | 344 KB | Output is partially correct |
| 81 | Partially correct | 12 ms | 344 KB | Output is partially correct |
| 82 | Partially correct | 7 ms | 344 KB | Output is partially correct |