#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
int n;
vector<int> a;
vector<int> b;
void pf(vector<int> &v, int x) {
v.push_back(0);
for (int i = v.size() - 1; i > 0; i--) v[i] = v[i - 1];
v[0] = x;
}
void pb(vector<int> &v, int x) {
v.push_back(x);
}
bool query(int x, int l, int r, vector<int> &v) {
vector<int> u;
for (int i = l; i < r; i++) u.push_back(v[i]);
return are_connected({x}, u);
}
int bin(int x, vector<int> &v) {
int l = 0, r = v.size(), m;
if (!query(x, l, r, v)) return -1;
while (r - l > 1) {
m = (l + r) / 2;
(query(x, l, m, v) ? r = m : l = m);
}
return l;
}
bool try_add(int x, vector<int> &v) {
if (!v.size()) {
pb(v, x);
return true;
}
if (v.size() == 1) {
if (are_connected({v[0]}, {x})) {
pb(v, x);
return true;
}
return false;
}
int y = v[0], z = v.back();
if (are_connected({y}, {x})) {
reverse(v.begin(), v.end());
pb(v, x);
return true;
}
if (are_connected({z}, {x})) {
pb(v, x);
return true;
}
int k = bin(x, v);
if (k == -1) return false;
vector<int> u;
for (int i = k + 1; i < v.size(); i++) pb(u, v[i]);
for (int i = 0; i <= k; i++) pb(u, v[i]);
v = u;
v.push_back(x);
return true;
}
vector<int> longest_trip(int N, int D) {
n = N;
a.clear();
b.clear();
for (int i = 0; i < n; i++) {
bool A = try_add(i, a);
bool B = try_add(i, b);
if (A && B) {
b.pop_back();
while (b.size()) {
a.push_back(b.back());
b.pop_back();
}
}
}
return (a.size() > b.size() ? a : b);
}
Compilation message
longesttrip.cpp: In function 'bool try_add(int, std::vector<int>&)':
longesttrip.cpp:60:27: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
60 | for (int i = k + 1; i < v.size(); i++) pb(u, v[i]);
| ~~^~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
3 ms |
692 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 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 |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
5 ms |
344 KB |
Output is correct |
| 2 |
Correct |
5 ms |
344 KB |
Output is correct |
| 3 |
Correct |
3 ms |
344 KB |
Output is correct |
| 4 |
Correct |
5 ms |
596 KB |
Output is correct |
| 5 |
Correct |
5 ms |
344 KB |
Output is correct |
| 6 |
Correct |
6 ms |
344 KB |
Output is correct |
| 7 |
Correct |
8 ms |
344 KB |
Output is correct |
| 8 |
Correct |
5 ms |
344 KB |
Output is correct |
| 9 |
Correct |
5 ms |
344 KB |
Output is correct |
| 10 |
Correct |
4 ms |
344 KB |
Output is correct |
| 11 |
Correct |
6 ms |
344 KB |
Output is correct |
| 12 |
Correct |
5 ms |
344 KB |
Output is correct |
| 13 |
Correct |
6 ms |
344 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 |
5 ms |
344 KB |
Output is correct |
| 4 |
Correct |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
344 KB |
Output is correct |
| 6 |
Correct |
7 ms |
344 KB |
Output is correct |
| 7 |
Correct |
7 ms |
344 KB |
Output is correct |
| 8 |
Correct |
5 ms |
344 KB |
Output is correct |
| 9 |
Correct |
4 ms |
344 KB |
Output is correct |
| 10 |
Correct |
6 ms |
344 KB |
Output is correct |
| 11 |
Correct |
6 ms |
432 KB |
Output is correct |
| 12 |
Correct |
5 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 ms |
344 KB |
Output is correct |
| 14 |
Correct |
9 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 |
14 ms |
344 KB |
Output is correct |
| 18 |
Correct |
7 ms |
344 KB |
Output is correct |
| 19 |
Correct |
7 ms |
440 KB |
Output is correct |
| 20 |
Correct |
6 ms |
344 KB |
Output is correct |
| 21 |
Correct |
6 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
444 KB |
Output is correct |
| 23 |
Correct |
6 ms |
432 KB |
Output is correct |
| 24 |
Correct |
5 ms |
340 KB |
Output is correct |
| 25 |
Correct |
9 ms |
344 KB |
Output is correct |
| 26 |
Correct |
7 ms |
344 KB |
Output is correct |
| 27 |
Correct |
7 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 |
10 ms |
600 KB |
Output is correct |
| 31 |
Correct |
22 ms |
344 KB |
Output is correct |
| 32 |
Correct |
21 ms |
344 KB |
Output is correct |
| 33 |
Correct |
9 ms |
600 KB |
Output is correct |
| 34 |
Correct |
11 ms |
432 KB |
Output is correct |
| 35 |
Correct |
16 ms |
600 KB |
Output is correct |
| 36 |
Correct |
5 ms |
344 KB |
Output is correct |
| 37 |
Correct |
19 ms |
344 KB |
Output is correct |
| 38 |
Correct |
20 ms |
344 KB |
Output is correct |
| 39 |
Correct |
26 ms |
452 KB |
Output is correct |
| 40 |
Correct |
30 ms |
596 KB |
Output is correct |
| 41 |
Correct |
30 ms |
600 KB |
Output is correct |
| 42 |
Correct |
28 ms |
344 KB |
Output is correct |
| 43 |
Correct |
25 ms |
600 KB |
Output is correct |
| 44 |
Correct |
21 ms |
600 KB |
Output is correct |
| 45 |
Correct |
9 ms |
344 KB |
Output is correct |
| 46 |
Correct |
8 ms |
344 KB |
Output is correct |
| 47 |
Correct |
9 ms |
344 KB |
Output is correct |
| 48 |
Correct |
8 ms |
344 KB |
Output is correct |
| 49 |
Correct |
8 ms |
344 KB |
Output is correct |
| 50 |
Correct |
12 ms |
344 KB |
Output is correct |
| 51 |
Correct |
18 ms |
344 KB |
Output is correct |
| 52 |
Correct |
22 ms |
344 KB |
Output is correct |
| 53 |
Correct |
8 ms |
340 KB |
Output is correct |
| 54 |
Correct |
11 ms |
344 KB |
Output is correct |
| 55 |
Correct |
12 ms |
344 KB |
Output is correct |
| 56 |
Correct |
6 ms |
344 KB |
Output is correct |
| 57 |
Correct |
14 ms |
600 KB |
Output is correct |
| 58 |
Correct |
16 ms |
600 KB |
Output is correct |
| 59 |
Correct |
16 ms |
600 KB |
Output is correct |
| 60 |
Correct |
24 ms |
600 KB |
Output is correct |
| 61 |
Correct |
14 ms |
344 KB |
Output is correct |
| 62 |
Correct |
24 ms |
444 KB |
Output is correct |
| 63 |
Correct |
31 ms |
444 KB |
Output is correct |
| 64 |
Correct |
17 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
8 ms |
344 KB |
Output is correct |
| 2 |
Correct |
5 ms |
344 KB |
Output is correct |
| 3 |
Correct |
7 ms |
344 KB |
Output is correct |
| 4 |
Correct |
8 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 |
6 ms |
344 KB |
Output is correct |
| 8 |
Correct |
4 ms |
344 KB |
Output is correct |
| 9 |
Correct |
5 ms |
344 KB |
Output is correct |
| 10 |
Correct |
5 ms |
344 KB |
Output is correct |
| 11 |
Correct |
5 ms |
432 KB |
Output is correct |
| 12 |
Correct |
6 ms |
344 KB |
Output is correct |
| 13 |
Correct |
7 ms |
344 KB |
Output is correct |
| 14 |
Correct |
7 ms |
344 KB |
Output is correct |
| 15 |
Correct |
10 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 |
8 ms |
344 KB |
Output is correct |
| 19 |
Correct |
7 ms |
440 KB |
Output is correct |
| 20 |
Correct |
8 ms |
344 KB |
Output is correct |
| 21 |
Correct |
8 ms |
344 KB |
Output is correct |
| 22 |
Correct |
13 ms |
344 KB |
Output is correct |
| 23 |
Correct |
11 ms |
344 KB |
Output is correct |
| 24 |
Correct |
9 ms |
344 KB |
Output is correct |
| 25 |
Correct |
11 ms |
344 KB |
Output is correct |
| 26 |
Correct |
9 ms |
344 KB |
Output is correct |
| 27 |
Correct |
31 ms |
344 KB |
Output is correct |
| 28 |
Correct |
14 ms |
344 KB |
Output is correct |
| 29 |
Correct |
16 ms |
344 KB |
Output is correct |
| 30 |
Correct |
14 ms |
600 KB |
Output is correct |
| 31 |
Correct |
17 ms |
344 KB |
Output is correct |
| 32 |
Correct |
7 ms |
344 KB |
Output is correct |
| 33 |
Correct |
10 ms |
344 KB |
Output is correct |
| 34 |
Correct |
8 ms |
344 KB |
Output is correct |
| 35 |
Correct |
11 ms |
344 KB |
Output is correct |
| 36 |
Correct |
10 ms |
340 KB |
Output is correct |
| 37 |
Correct |
9 ms |
344 KB |
Output is correct |
| 38 |
Correct |
21 ms |
344 KB |
Output is correct |
| 39 |
Correct |
16 ms |
344 KB |
Output is correct |
| 40 |
Correct |
7 ms |
344 KB |
Output is correct |
| 41 |
Correct |
16 ms |
344 KB |
Output is correct |
| 42 |
Correct |
13 ms |
344 KB |
Output is correct |
| 43 |
Correct |
6 ms |
344 KB |
Output is correct |
| 44 |
Correct |
7 ms |
436 KB |
Output is correct |
| 45 |
Correct |
5 ms |
444 KB |
Output is correct |
| 46 |
Correct |
6 ms |
440 KB |
Output is correct |
| 47 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 48 |
Partially correct |
21 ms |
428 KB |
Output is partially correct |
| 49 |
Partially correct |
26 ms |
440 KB |
Output is partially correct |
| 50 |
Partially correct |
22 ms |
424 KB |
Output is partially correct |
| 51 |
Partially correct |
22 ms |
696 KB |
Output is partially correct |
| 52 |
Partially correct |
27 ms |
444 KB |
Output is partially correct |
| 53 |
Partially correct |
24 ms |
696 KB |
Output is partially correct |
| 54 |
Partially correct |
32 ms |
440 KB |
Output is partially correct |
| 55 |
Partially correct |
26 ms |
424 KB |
Output is partially correct |
| 56 |
Partially correct |
27 ms |
344 KB |
Output is partially correct |
| 57 |
Partially correct |
23 ms |
448 KB |
Output is partially correct |
| 58 |
Partially correct |
22 ms |
344 KB |
Output is partially correct |
| 59 |
Partially correct |
39 ms |
604 KB |
Output is partially correct |
| 60 |
Partially correct |
35 ms |
344 KB |
Output is partially correct |
| 61 |
Partially correct |
29 ms |
344 KB |
Output is partially correct |
| 62 |
Correct |
10 ms |
344 KB |
Output is correct |
| 63 |
Partially correct |
11 ms |
344 KB |
Output is partially correct |
| 64 |
Partially correct |
21 ms |
696 KB |
Output is partially correct |
| 65 |
Partially correct |
18 ms |
452 KB |
Output is partially correct |
| 66 |
Partially correct |
23 ms |
444 KB |
Output is partially correct |
| 67 |
Partially correct |
16 ms |
432 KB |
Output is partially correct |
| 68 |
Partially correct |
18 ms |
344 KB |
Output is partially correct |
| 69 |
Partially correct |
18 ms |
344 KB |
Output is partially correct |
| 70 |
Partially correct |
25 ms |
692 KB |
Output is partially correct |
| 71 |
Partially correct |
15 ms |
344 KB |
Output is partially correct |
| 72 |
Partially correct |
17 ms |
444 KB |
Output is partially correct |
| 73 |
Partially correct |
23 ms |
344 KB |
Output is partially correct |
| 74 |
Partially correct |
23 ms |
344 KB |
Output is partially correct |
| 75 |
Partially correct |
11 ms |
344 KB |
Output is partially correct |
| 76 |
Partially correct |
17 ms |
344 KB |
Output is partially correct |
| 77 |
Partially correct |
16 ms |
600 KB |
Output is partially correct |
| 78 |
Partially correct |
22 ms |
600 KB |
Output is partially correct |
| 79 |
Partially correct |
17 ms |
344 KB |
Output is partially correct |
| 80 |
Partially correct |
24 ms |
432 KB |
Output is partially correct |
| 81 |
Partially correct |
18 ms |
344 KB |
Output is partially correct |
| 82 |
Partially correct |
16 ms |
340 KB |
Output is partially correct |
