#include <bits/stdc++.h>
using namespace std;
#include "longesttrip.h"
vector<int> subrange(vector<int> &V, int l, int r){
vector<int> res(V.begin() + l, V.begin() + r + 1);
return res;
}
vector<int> longest_trip(int N, int D){
// Assuming D = 1
vector<int> v1 = {0}, v2 = {1};
bool stupid = false;
for (int i = 2; i < N; i++){
if (are_connected({v1.back()}, {i})){
v1.push_back(i);
// stupid = false;
}
else if (/*!stupid && */are_connected({v2.back()}, {i})){
v2.push_back(i);
// stupid = true;
}
else{
reverse(v2.begin(), v2.end());
v1.insert(v1.end(), v2.begin(), v2.end());
v2.clear(); v2.push_back(i);
// stupid = false;
}
}
bool bruh = false;
if (v1.front() != v1.back() && !are_connected({v1.front()}, {v1.back()})) bruh = true;
if (v2.front() != v2.back() && !are_connected({v2.front()}, {v2.back()})) bruh = true;
if (bruh){
if (are_connected({v1.front()}, {v2.front()})){
reverse(v1.begin(), v1.end());
v1.insert(v1.end(), v2.begin(), v2.end());
return v1;
}
if (are_connected({v1.back()}, {v2.front()})){
v1.insert(v1.end(), v2.begin(), v2.end());
return v1;
}
if (are_connected({v1.front()}, {v2.back()})){
v2.insert(v2.end(), v1.begin(), v1.end());
return v2;
}
if (are_connected({v1.back()}, {v2.back()})){
reverse(v1.begin(), v1.end());
v2.insert(v2.end(), v1.begin(), v1.end());
return v2;
}
}
if (!are_connected(v1, v2)){
if (v1.size() > v2.size()) return v1;
return v2;
}
int l1 = 0, r1 = v1.size() - 1;
int l2 = 0, r2 = v2.size() - 1;
while (l1 < r1){
int mid = (l1 + r1) >> 1;
bool edge = are_connected(subrange(v1, l1, mid), subrange(v2, l2, r2));
if (edge) r1 = mid;
else l1 = mid + 1;
}
while (l2 < r2){
int mid = (l2 + r2) >> 1;
bool edge = are_connected(subrange(v1, l1, r1), subrange(v2, l2, mid));
if (edge) r2 = mid;
else l2 = mid + 1;
}
vector<int> res1, res2;
for (int i = l1; i < (int)v1.size(); i++) res1.push_back(v1[i]);
for (int i = 0; i < l1; i++) res1.push_back(v1[i]);
for (int i = l2; i < (int)v2.size(); i++) res2.push_back(v2[i]);
for (int i = 0; i < l2; i++) res2.push_back(v2[i]);
reverse(res1.begin(), res1.end());
res2.insert(res2.begin(), res1.begin(), res1.end());
return res2;
}
Compilation message
longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:15:7: warning: unused variable 'stupid' [-Wunused-variable]
15 | bool stupid = false;
| ^~~~~~
| # |
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 |
11 ms |
208 KB |
Output is correct |
| 2 |
Correct |
13 ms |
208 KB |
Output is correct |
| 3 |
Correct |
8 ms |
208 KB |
Output is correct |
| 4 |
Correct |
8 ms |
208 KB |
Output is correct |
| 5 |
Correct |
9 ms |
288 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 |
11 ms |
208 KB |
Output is correct |
| 4 |
Correct |
11 ms |
208 KB |
Output is correct |
| 5 |
Correct |
10 ms |
296 KB |
Output is correct |
| 6 |
Correct |
8 ms |
208 KB |
Output is correct |
| 7 |
Correct |
8 ms |
256 KB |
Output is correct |
| 8 |
Correct |
12 ms |
208 KB |
Output is correct |
| 9 |
Correct |
5 ms |
208 KB |
Output is correct |
| 10 |
Correct |
8 ms |
300 KB |
Output is correct |
| 11 |
Correct |
10 ms |
300 KB |
Output is correct |
| 12 |
Correct |
10 ms |
208 KB |
Output is correct |
| 13 |
Correct |
11 ms |
208 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
15 ms |
208 KB |
Output is correct |
| 2 |
Correct |
14 ms |
208 KB |
Output is correct |
| 3 |
Correct |
9 ms |
208 KB |
Output is correct |
| 4 |
Correct |
7 ms |
300 KB |
Output is correct |
| 5 |
Correct |
9 ms |
300 KB |
Output is correct |
| 6 |
Correct |
15 ms |
208 KB |
Output is correct |
| 7 |
Correct |
14 ms |
208 KB |
Output is correct |
| 8 |
Correct |
11 ms |
208 KB |
Output is correct |
| 9 |
Correct |
9 ms |
208 KB |
Output is correct |
| 10 |
Correct |
5 ms |
208 KB |
Output is correct |
| 11 |
Correct |
7 ms |
208 KB |
Output is correct |
| 12 |
Correct |
7 ms |
208 KB |
Output is correct |
| 13 |
Correct |
7 ms |
208 KB |
Output is correct |
| 14 |
Correct |
15 ms |
208 KB |
Output is correct |
| 15 |
Correct |
16 ms |
208 KB |
Output is correct |
| 16 |
Correct |
16 ms |
288 KB |
Output is correct |
| 17 |
Correct |
13 ms |
300 KB |
Output is correct |
| 18 |
Correct |
9 ms |
208 KB |
Output is correct |
| 19 |
Correct |
13 ms |
300 KB |
Output is correct |
| 20 |
Correct |
11 ms |
208 KB |
Output is correct |
| 21 |
Correct |
12 ms |
300 KB |
Output is correct |
| 22 |
Correct |
6 ms |
428 KB |
Output is correct |
| 23 |
Correct |
8 ms |
208 KB |
Output is correct |
| 24 |
Correct |
11 ms |
208 KB |
Output is correct |
| 25 |
Correct |
13 ms |
208 KB |
Output is correct |
| 26 |
Correct |
14 ms |
208 KB |
Output is correct |
| 27 |
Correct |
9 ms |
208 KB |
Output is correct |
| 28 |
Correct |
11 ms |
208 KB |
Output is correct |
| 29 |
Correct |
12 ms |
208 KB |
Output is correct |
| 30 |
Correct |
9 ms |
208 KB |
Output is correct |
| 31 |
Correct |
11 ms |
208 KB |
Output is correct |
| 32 |
Correct |
13 ms |
208 KB |
Output is correct |
| 33 |
Correct |
9 ms |
208 KB |
Output is correct |
| 34 |
Correct |
8 ms |
208 KB |
Output is correct |
| 35 |
Correct |
10 ms |
208 KB |
Output is correct |
| 36 |
Correct |
7 ms |
296 KB |
Output is correct |
| 37 |
Correct |
7 ms |
208 KB |
Output is correct |
| 38 |
Correct |
10 ms |
208 KB |
Output is correct |
| 39 |
Correct |
9 ms |
300 KB |
Output is correct |
| 40 |
Correct |
9 ms |
208 KB |
Output is correct |
| 41 |
Correct |
14 ms |
208 KB |
Output is correct |
| 42 |
Correct |
11 ms |
208 KB |
Output is correct |
| 43 |
Correct |
11 ms |
300 KB |
Output is correct |
| 44 |
Correct |
13 ms |
208 KB |
Output is correct |
| 45 |
Correct |
16 ms |
208 KB |
Output is correct |
| 46 |
Correct |
18 ms |
208 KB |
Output is correct |
| 47 |
Correct |
11 ms |
208 KB |
Output is correct |
| 48 |
Correct |
15 ms |
208 KB |
Output is correct |
| 49 |
Correct |
12 ms |
208 KB |
Output is correct |
| 50 |
Correct |
10 ms |
208 KB |
Output is correct |
| 51 |
Correct |
13 ms |
308 KB |
Output is correct |
| 52 |
Correct |
11 ms |
208 KB |
Output is correct |
| 53 |
Correct |
10 ms |
208 KB |
Output is correct |
| 54 |
Correct |
10 ms |
296 KB |
Output is correct |
| 55 |
Correct |
12 ms |
208 KB |
Output is correct |
| 56 |
Correct |
7 ms |
300 KB |
Output is correct |
| 57 |
Correct |
10 ms |
208 KB |
Output is correct |
| 58 |
Correct |
13 ms |
296 KB |
Output is correct |
| 59 |
Correct |
11 ms |
208 KB |
Output is correct |
| 60 |
Correct |
10 ms |
208 KB |
Output is correct |
| 61 |
Correct |
10 ms |
208 KB |
Output is correct |
| 62 |
Correct |
13 ms |
208 KB |
Output is correct |
| 63 |
Correct |
16 ms |
208 KB |
Output is correct |
| 64 |
Correct |
12 ms |
420 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
16 ms |
208 KB |
Output is correct |
| 2 |
Correct |
11 ms |
208 KB |
Output is correct |
| 3 |
Correct |
9 ms |
208 KB |
Output is correct |
| 4 |
Correct |
8 ms |
208 KB |
Output is correct |
| 5 |
Correct |
10 ms |
208 KB |
Output is correct |
| 6 |
Correct |
10 ms |
208 KB |
Output is correct |
| 7 |
Correct |
12 ms |
208 KB |
Output is correct |
| 8 |
Correct |
10 ms |
208 KB |
Output is correct |
| 9 |
Correct |
7 ms |
208 KB |
Output is correct |
| 10 |
Correct |
8 ms |
208 KB |
Output is correct |
| 11 |
Correct |
10 ms |
208 KB |
Output is correct |
| 12 |
Correct |
11 ms |
208 KB |
Output is correct |
| 13 |
Correct |
7 ms |
208 KB |
Output is correct |
| 14 |
Correct |
15 ms |
208 KB |
Output is correct |
| 15 |
Correct |
16 ms |
208 KB |
Output is correct |
| 16 |
Correct |
16 ms |
208 KB |
Output is correct |
| 17 |
Correct |
6 ms |
208 KB |
Output is correct |
| 18 |
Correct |
6 ms |
304 KB |
Output is correct |
| 19 |
Correct |
12 ms |
208 KB |
Output is correct |
| 20 |
Correct |
9 ms |
236 KB |
Output is correct |
| 21 |
Correct |
11 ms |
208 KB |
Output is correct |
| 22 |
Correct |
16 ms |
208 KB |
Output is correct |
| 23 |
Correct |
6 ms |
208 KB |
Output is correct |
| 24 |
Correct |
9 ms |
208 KB |
Output is correct |
| 25 |
Correct |
12 ms |
208 KB |
Output is correct |
| 26 |
Correct |
9 ms |
208 KB |
Output is correct |
| 27 |
Correct |
11 ms |
208 KB |
Output is correct |
| 28 |
Correct |
12 ms |
208 KB |
Output is correct |
| 29 |
Correct |
11 ms |
224 KB |
Output is correct |
| 30 |
Correct |
6 ms |
208 KB |
Output is correct |
| 31 |
Correct |
7 ms |
208 KB |
Output is correct |
| 32 |
Correct |
16 ms |
208 KB |
Output is correct |
| 33 |
Correct |
18 ms |
208 KB |
Output is correct |
| 34 |
Correct |
14 ms |
208 KB |
Output is correct |
| 35 |
Correct |
10 ms |
208 KB |
Output is correct |
| 36 |
Correct |
7 ms |
208 KB |
Output is correct |
| 37 |
Correct |
9 ms |
208 KB |
Output is correct |
| 38 |
Correct |
16 ms |
300 KB |
Output is correct |
| 39 |
Correct |
10 ms |
208 KB |
Output is correct |
| 40 |
Correct |
10 ms |
208 KB |
Output is correct |
| 41 |
Correct |
9 ms |
208 KB |
Output is correct |
| 42 |
Correct |
9 ms |
208 KB |
Output is correct |
| 43 |
Correct |
8 ms |
308 KB |
Output is correct |
| 44 |
Correct |
11 ms |
208 KB |
Output is correct |
| 45 |
Correct |
10 ms |
308 KB |
Output is correct |
| 46 |
Correct |
10 ms |
208 KB |
Output is correct |
| 47 |
Correct |
10 ms |
208 KB |
Output is correct |
| 48 |
Correct |
6 ms |
208 KB |
Output is correct |
| 49 |
Correct |
8 ms |
208 KB |
Output is correct |
| 50 |
Correct |
10 ms |
208 KB |
Output is correct |
| 51 |
Partially correct |
13 ms |
208 KB |
Output is partially correct |
| 52 |
Correct |
10 ms |
208 KB |
Output is correct |
| 53 |
Correct |
13 ms |
208 KB |
Output is correct |
| 54 |
Correct |
14 ms |
208 KB |
Output is correct |
| 55 |
Correct |
14 ms |
208 KB |
Output is correct |
| 56 |
Correct |
7 ms |
208 KB |
Output is correct |
| 57 |
Partially correct |
12 ms |
208 KB |
Output is partially correct |
| 58 |
Partially correct |
13 ms |
208 KB |
Output is partially correct |
| 59 |
Partially correct |
14 ms |
208 KB |
Output is partially correct |
| 60 |
Correct |
9 ms |
208 KB |
Output is correct |
| 61 |
Correct |
14 ms |
288 KB |
Output is correct |
| 62 |
Correct |
10 ms |
208 KB |
Output is correct |
| 63 |
Partially correct |
12 ms |
208 KB |
Output is partially correct |
| 64 |
Partially correct |
14 ms |
288 KB |
Output is partially correct |
| 65 |
Partially correct |
13 ms |
208 KB |
Output is partially correct |
| 66 |
Partially correct |
13 ms |
208 KB |
Output is partially correct |
| 67 |
Correct |
10 ms |
284 KB |
Output is correct |
| 68 |
Correct |
9 ms |
208 KB |
Output is correct |
| 69 |
Partially correct |
15 ms |
208 KB |
Output is partially correct |
| 70 |
Partially correct |
13 ms |
208 KB |
Output is partially correct |
| 71 |
Correct |
8 ms |
300 KB |
Output is correct |
| 72 |
Partially correct |
13 ms |
208 KB |
Output is partially correct |
| 73 |
Partially correct |
9 ms |
208 KB |
Output is partially correct |
| 74 |
Partially correct |
14 ms |
208 KB |
Output is partially correct |
| 75 |
Correct |
14 ms |
208 KB |
Output is correct |
| 76 |
Correct |
12 ms |
208 KB |
Output is correct |
| 77 |
Correct |
10 ms |
300 KB |
Output is correct |
| 78 |
Partially correct |
9 ms |
208 KB |
Output is partially correct |
| 79 |
Correct |
13 ms |
296 KB |
Output is correct |
| 80 |
Partially correct |
14 ms |
284 KB |
Output is partially correct |
| 81 |
Correct |
10 ms |
208 KB |
Output is correct |
| 82 |
Correct |
14 ms |
208 KB |
Output is correct |
