#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
vector<int> longest_trip(int N, int D) {
vector<int> a, b;
a.push_back(0);
for (int i = 1; i < N; i ++) {
int x = a.back(), y = are_connected({x}, {i});
if (y) {
a.push_back(i);
continue;
}
if (b.size() == 0) b.push_back(i);
else {
int z = b.back(), k = are_connected({z}, {i});
if (k) b.push_back(i);
else {
for (int j = b.size() - 1; j >= 0; j --) a.push_back(b[j]);
b.clear();
b.push_back(i);
}
}
}
if (b.size() == 0) return a;
if (are_connected(a, b) == 0){
if (a.size() > b.size()) return a;
return b;
}
if (are_connected({a.back()}, {b.back()})) {
for (int j = b.size() - 1; j >= 0; j --) a.push_back(b[j]);
return a;
}
else if (are_connected({a.back()}, {b[0]})) {
for (int j = 0; j < b.size(); j ++) a.push_back(b[j]);
return a;
}
else if (are_connected({a[0]}, {b.back()})) {
for (int j = 0; j < a.size(); j ++) b.push_back(a[j]);
return b;
}
else if (are_connected({a[0]}, {b[0]})) {
reverse(a.begin(), a.end());
for (int j = 0; j < b.size(); j ++) a.push_back(b[j]);
return a;
}
int l = 0, r = a.size(), mid;
while (l < r) {
mid = (l + r) / 2;
vector<int> temp;
for (int i = 0; i <= mid; i ++) temp.push_back(a[i]);
if (are_connected(temp, b)) r = mid;
else l = mid + 1;
}
vector<int> ans;
for (int i = l - 1; i >= 0; i --) ans.push_back(a[i]);
for (int i = a.size() - 1; i >= l; i --) ans.push_back(a[i]);
int x = a[l];
l = 0, r = b.size();
while (l < r) {
mid = (l + r) / 2;
vector<int> temp;
for (int i = 0; i <= mid; i ++) temp.push_back(b[i]);
if (are_connected({x}, temp)) r = mid;
else l = mid + 1;
}
for (int i = l; i >= 0; i --) ans.push_back(b[i]);
for (int i = b.size() - 1; i > l; i --) ans.push_back(b[i]);
return ans;
}
Compilation message
longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:40:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
40 | for (int j = 0; j < b.size(); j ++) a.push_back(b[j]);
| ~~^~~~~~~~~~
longesttrip.cpp:44:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
44 | for (int j = 0; j < a.size(); j ++) b.push_back(a[j]);
| ~~^~~~~~~~~~
longesttrip.cpp:49:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
49 | for (int j = 0; j < b.size(); j ++) a.push_back(b[j]);
| ~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
1 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
3 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 |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
3 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 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 |
344 KB |
Output is correct |
| 6 |
Correct |
8 ms |
344 KB |
Output is correct |
| 7 |
Correct |
5 ms |
344 KB |
Output is correct |
| 8 |
Correct |
7 ms |
344 KB |
Output is correct |
| 9 |
Correct |
5 ms |
344 KB |
Output is correct |
| 10 |
Correct |
3 ms |
344 KB |
Output is correct |
| 11 |
Correct |
5 ms |
344 KB |
Output is correct |
| 12 |
Correct |
6 ms |
344 KB |
Output is correct |
| 13 |
Correct |
7 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 ms |
344 KB |
Output is correct |
| 2 |
Correct |
4 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 |
4 ms |
344 KB |
Output is correct |
| 6 |
Correct |
10 ms |
344 KB |
Output is correct |
| 7 |
Correct |
5 ms |
344 KB |
Output is correct |
| 8 |
Correct |
5 ms |
344 KB |
Output is correct |
| 9 |
Correct |
5 ms |
340 KB |
Output is correct |
| 10 |
Correct |
5 ms |
344 KB |
Output is correct |
| 11 |
Correct |
6 ms |
344 KB |
Output is correct |
| 12 |
Correct |
4 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 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 |
7 ms |
344 KB |
Output is correct |
| 17 |
Correct |
7 ms |
344 KB |
Output is correct |
| 18 |
Correct |
7 ms |
344 KB |
Output is correct |
| 19 |
Correct |
5 ms |
344 KB |
Output is correct |
| 20 |
Correct |
6 ms |
344 KB |
Output is correct |
| 21 |
Correct |
6 ms |
344 KB |
Output is correct |
| 22 |
Correct |
8 ms |
344 KB |
Output is correct |
| 23 |
Correct |
5 ms |
852 KB |
Output is correct |
| 24 |
Correct |
4 ms |
344 KB |
Output is correct |
| 25 |
Correct |
7 ms |
344 KB |
Output is correct |
| 26 |
Correct |
7 ms |
344 KB |
Output is correct |
| 27 |
Correct |
5 ms |
344 KB |
Output is correct |
| 28 |
Correct |
8 ms |
344 KB |
Output is correct |
| 29 |
Correct |
7 ms |
344 KB |
Output is correct |
| 30 |
Correct |
4 ms |
344 KB |
Output is correct |
| 31 |
Correct |
4 ms |
344 KB |
Output is correct |
| 32 |
Correct |
5 ms |
344 KB |
Output is correct |
| 33 |
Correct |
5 ms |
344 KB |
Output is correct |
| 34 |
Correct |
7 ms |
344 KB |
Output is correct |
| 35 |
Correct |
6 ms |
344 KB |
Output is correct |
| 36 |
Correct |
7 ms |
344 KB |
Output is correct |
| 37 |
Correct |
5 ms |
344 KB |
Output is correct |
| 38 |
Correct |
6 ms |
344 KB |
Output is correct |
| 39 |
Correct |
6 ms |
344 KB |
Output is correct |
| 40 |
Correct |
7 ms |
344 KB |
Output is correct |
| 41 |
Correct |
7 ms |
344 KB |
Output is correct |
| 42 |
Correct |
5 ms |
344 KB |
Output is correct |
| 43 |
Correct |
7 ms |
344 KB |
Output is correct |
| 44 |
Correct |
7 ms |
344 KB |
Output is correct |
| 45 |
Correct |
9 ms |
368 KB |
Output is correct |
| 46 |
Correct |
7 ms |
344 KB |
Output is correct |
| 47 |
Correct |
6 ms |
344 KB |
Output is correct |
| 48 |
Correct |
10 ms |
344 KB |
Output is correct |
| 49 |
Correct |
12 ms |
344 KB |
Output is correct |
| 50 |
Correct |
8 ms |
344 KB |
Output is correct |
| 51 |
Correct |
7 ms |
344 KB |
Output is correct |
| 52 |
Correct |
5 ms |
344 KB |
Output is correct |
| 53 |
Correct |
6 ms |
344 KB |
Output is correct |
| 54 |
Correct |
5 ms |
344 KB |
Output is correct |
| 55 |
Correct |
6 ms |
600 KB |
Output is correct |
| 56 |
Correct |
5 ms |
344 KB |
Output is correct |
| 57 |
Correct |
5 ms |
444 KB |
Output is correct |
| 58 |
Correct |
8 ms |
344 KB |
Output is correct |
| 59 |
Correct |
7 ms |
344 KB |
Output is correct |
| 60 |
Correct |
8 ms |
344 KB |
Output is correct |
| 61 |
Correct |
8 ms |
432 KB |
Output is correct |
| 62 |
Correct |
12 ms |
344 KB |
Output is correct |
| 63 |
Correct |
8 ms |
344 KB |
Output is correct |
| 64 |
Correct |
8 ms |
432 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
344 KB |
Output is correct |
| 2 |
Correct |
6 ms |
344 KB |
Output is correct |
| 3 |
Correct |
7 ms |
344 KB |
Output is correct |
| 4 |
Correct |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
4 ms |
344 KB |
Output is correct |
| 6 |
Correct |
8 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 |
6 ms |
344 KB |
Output is correct |
| 10 |
Correct |
4 ms |
344 KB |
Output is correct |
| 11 |
Correct |
5 ms |
344 KB |
Output is correct |
| 12 |
Correct |
5 ms |
344 KB |
Output is correct |
| 13 |
Correct |
7 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 |
7 ms |
344 KB |
Output is correct |
| 17 |
Correct |
7 ms |
344 KB |
Output is correct |
| 18 |
Correct |
9 ms |
344 KB |
Output is correct |
| 19 |
Correct |
5 ms |
344 KB |
Output is correct |
| 20 |
Correct |
6 ms |
408 KB |
Output is correct |
| 21 |
Correct |
10 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
344 KB |
Output is correct |
| 23 |
Correct |
7 ms |
344 KB |
Output is correct |
| 24 |
Correct |
6 ms |
344 KB |
Output is correct |
| 25 |
Correct |
9 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 |
8 ms |
344 KB |
Output is correct |
| 29 |
Correct |
6 ms |
344 KB |
Output is correct |
| 30 |
Correct |
7 ms |
344 KB |
Output is correct |
| 31 |
Correct |
6 ms |
344 KB |
Output is correct |
| 32 |
Correct |
8 ms |
344 KB |
Output is correct |
| 33 |
Correct |
9 ms |
344 KB |
Output is correct |
| 34 |
Correct |
10 ms |
344 KB |
Output is correct |
| 35 |
Correct |
9 ms |
344 KB |
Output is correct |
| 36 |
Correct |
8 ms |
344 KB |
Output is correct |
| 37 |
Correct |
6 ms |
344 KB |
Output is correct |
| 38 |
Correct |
8 ms |
344 KB |
Output is correct |
| 39 |
Correct |
9 ms |
344 KB |
Output is correct |
| 40 |
Correct |
6 ms |
344 KB |
Output is correct |
| 41 |
Correct |
6 ms |
344 KB |
Output is correct |
| 42 |
Correct |
7 ms |
344 KB |
Output is correct |
| 43 |
Correct |
6 ms |
344 KB |
Output is correct |
| 44 |
Correct |
8 ms |
344 KB |
Output is correct |
| 45 |
Correct |
4 ms |
440 KB |
Output is correct |
| 46 |
Correct |
5 ms |
344 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 |
344 KB |
Output is correct |
| 50 |
Correct |
6 ms |
344 KB |
Output is correct |
| 51 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 52 |
Correct |
7 ms |
344 KB |
Output is correct |
| 53 |
Correct |
7 ms |
344 KB |
Output is correct |
| 54 |
Correct |
8 ms |
436 KB |
Output is correct |
| 55 |
Correct |
5 ms |
344 KB |
Output is correct |
| 56 |
Correct |
4 ms |
344 KB |
Output is correct |
| 57 |
Partially correct |
6 ms |
344 KB |
Output is partially correct |
| 58 |
Partially correct |
7 ms |
344 KB |
Output is partially correct |
| 59 |
Partially correct |
6 ms |
344 KB |
Output is partially correct |
| 60 |
Correct |
6 ms |
344 KB |
Output is correct |
| 61 |
Correct |
7 ms |
432 KB |
Output is correct |
| 62 |
Correct |
6 ms |
440 KB |
Output is correct |
| 63 |
Partially correct |
5 ms |
344 KB |
Output is partially correct |
| 64 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 65 |
Partially correct |
7 ms |
440 KB |
Output is partially correct |
| 66 |
Partially correct |
10 ms |
440 KB |
Output is partially correct |
| 67 |
Partially correct |
9 ms |
592 KB |
Output is partially correct |
| 68 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 69 |
Partially correct |
9 ms |
444 KB |
Output is partially correct |
| 70 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 71 |
Correct |
8 ms |
600 KB |
Output is correct |
| 72 |
Partially correct |
7 ms |
600 KB |
Output is partially correct |
| 73 |
Partially correct |
9 ms |
440 KB |
Output is partially correct |
| 74 |
Partially correct |
6 ms |
344 KB |
Output is partially correct |
| 75 |
Partially correct |
8 ms |
436 KB |
Output is partially correct |
| 76 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 77 |
Correct |
7 ms |
344 KB |
Output is correct |
| 78 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 79 |
Correct |
7 ms |
344 KB |
Output is correct |
| 80 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 81 |
Partially correct |
8 ms |
444 KB |
Output is partially correct |
| 82 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
