#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
/*
OBSERVE:
path meargen
hinten und vorne dazu
* - * *
* - *
*/
std::vector<int> longest_trip(int N, int D){
// vorraussetzung path[0].end nicht mit path[1].end verbunden
vector<int> path[2];
path[0].push_back(0);
for(int i=1; i<N; i++){
if(are_connected({*path[0].rbegin()}, {i})){
path[0].push_back(i);
if(path[1].size() and are_connected({path[0][path[0].size()-1]}, {path[1][path[1].size()-1]})){
reverse(path[1].begin(), path[1].end());
path[0].insert(path[0].end(), path[1].begin(), path[1].end());
path[1].clear();
}
}else{
path[1].push_back(i);
}
}
if(path[1].empty() or not are_connected(path[0], path[1])){
if(path[0].size() > path[1].size())
return path[0];
return path[1];
}
if(are_connected({path[0][0]}, {path[1][0]})){
reverse(path[0].begin(), path[0].end());
path[0].insert(path[0].end(), path[1].begin(), path[1].end());
return path[0];
}
if(are_connected({path[0][0]}, {path[1][path[1].size()-1]})){
path[1].insert(path[1].end(), path[0].begin(), path[0].end());
return path[1];
}
if(are_connected({path[0][path[0].size()-1]}, {path[1][0]})){
path[0].insert(path[0].end(), path[1].begin(), path[1].end());
return path[0];
}
// jetzt wissen wir das path[0].begin - path[0].end
// jetzt wissen wir das path[1].begin - path[1].end
// und die pfade sind nicht disjoint
// eine node in path[0] finden die mit path[1] verbunden ist
// find i
int li = 0, ri = path[0].size()-1;
while(li<ri){
int mi = (li + ri) / 2;
vector<int> sub(path[0].begin(), path[0].begin()+mi+1);
if(are_connected(sub, path[1])){
ri = mi;
}else{
li = mi + 1;
}
}
int i = li;
int lj = 0, rj = path[1].size()-1;
while(lj<rj){
int mj = (lj + rj) / 2;
vector<int> sub(path[1].begin(), path[1].begin()+mj+1);
if(are_connected({path[0][i]}, sub)){
rj = mj;
}else{
lj = mj + 1;
}
}
int j = lj;
vector<int> ans;
ans.insert(ans.end(), path[0].begin() + i + 1, path[0].end());
ans.insert(ans.end(), path[0].begin(), path[0].begin() + i + 1);
ans.insert(ans.end(), path[1].begin() + j, path[1].end());
ans.insert(ans.end(), path[1].begin(), path[1].begin() + j);
return ans;
}
| # |
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 |
5 ms |
344 KB |
Output is correct |
| 2 |
Correct |
5 ms |
344 KB |
Output is correct |
| 3 |
Correct |
4 ms |
344 KB |
Output is correct |
| 4 |
Correct |
4 ms |
344 KB |
Output is correct |
| 5 |
Correct |
4 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 |
4 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 |
7 ms |
344 KB |
Output is correct |
| 7 |
Correct |
5 ms |
596 KB |
Output is correct |
| 8 |
Correct |
6 ms |
344 KB |
Output is correct |
| 9 |
Correct |
5 ms |
344 KB |
Output is correct |
| 10 |
Correct |
5 ms |
600 KB |
Output is correct |
| 11 |
Correct |
6 ms |
600 KB |
Output is correct |
| 12 |
Correct |
5 ms |
344 KB |
Output is correct |
| 13 |
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 |
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 |
600 KB |
Output is correct |
| 6 |
Correct |
6 ms |
344 KB |
Output is correct |
| 7 |
Correct |
5 ms |
344 KB |
Output is correct |
| 8 |
Correct |
4 ms |
344 KB |
Output is correct |
| 9 |
Correct |
4 ms |
344 KB |
Output is correct |
| 10 |
Correct |
4 ms |
344 KB |
Output is correct |
| 11 |
Correct |
4 ms |
344 KB |
Output is correct |
| 12 |
Correct |
5 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 ms |
432 KB |
Output is correct |
| 14 |
Correct |
7 ms |
344 KB |
Output is correct |
| 15 |
Correct |
7 ms |
344 KB |
Output is correct |
| 16 |
Correct |
6 ms |
344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
600 KB |
Output is correct |
| 18 |
Correct |
5 ms |
344 KB |
Output is correct |
| 19 |
Correct |
7 ms |
600 KB |
Output is correct |
| 20 |
Correct |
5 ms |
344 KB |
Output is correct |
| 21 |
Correct |
6 ms |
600 KB |
Output is correct |
| 22 |
Correct |
6 ms |
344 KB |
Output is correct |
| 23 |
Correct |
5 ms |
600 KB |
Output is correct |
| 24 |
Correct |
5 ms |
340 KB |
Output is correct |
| 25 |
Correct |
8 ms |
344 KB |
Output is correct |
| 26 |
Correct |
7 ms |
344 KB |
Output is correct |
| 27 |
Correct |
10 ms |
344 KB |
Output is correct |
| 28 |
Correct |
6 ms |
344 KB |
Output is correct |
| 29 |
Correct |
9 ms |
344 KB |
Output is correct |
| 30 |
Correct |
8 ms |
344 KB |
Output is correct |
| 31 |
Correct |
7 ms |
344 KB |
Output is correct |
| 32 |
Correct |
6 ms |
344 KB |
Output is correct |
| 33 |
Correct |
7 ms |
344 KB |
Output is correct |
| 34 |
Correct |
8 ms |
504 KB |
Output is correct |
| 35 |
Correct |
9 ms |
344 KB |
Output is correct |
| 36 |
Correct |
8 ms |
600 KB |
Output is correct |
| 37 |
Correct |
8 ms |
344 KB |
Output is correct |
| 38 |
Correct |
9 ms |
436 KB |
Output is correct |
| 39 |
Correct |
8 ms |
600 KB |
Output is correct |
| 40 |
Correct |
7 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 |
7 ms |
600 KB |
Output is correct |
| 44 |
Correct |
7 ms |
344 KB |
Output is correct |
| 45 |
Correct |
7 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 |
6 ms |
344 KB |
Output is correct |
| 49 |
Correct |
6 ms |
344 KB |
Output is correct |
| 50 |
Correct |
6 ms |
692 KB |
Output is correct |
| 51 |
Correct |
7 ms |
440 KB |
Output is correct |
| 52 |
Correct |
8 ms |
428 KB |
Output is correct |
| 53 |
Correct |
6 ms |
692 KB |
Output is correct |
| 54 |
Correct |
9 ms |
604 KB |
Output is correct |
| 55 |
Correct |
7 ms |
444 KB |
Output is correct |
| 56 |
Correct |
5 ms |
448 KB |
Output is correct |
| 57 |
Correct |
9 ms |
700 KB |
Output is correct |
| 58 |
Correct |
8 ms |
956 KB |
Output is correct |
| 59 |
Correct |
8 ms |
616 KB |
Output is correct |
| 60 |
Correct |
8 ms |
956 KB |
Output is correct |
| 61 |
Correct |
7 ms |
860 KB |
Output is correct |
| 62 |
Correct |
7 ms |
696 KB |
Output is correct |
| 63 |
Correct |
8 ms |
856 KB |
Output is correct |
| 64 |
Correct |
8 ms |
948 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 |
5 ms |
344 KB |
Output is correct |
| 4 |
Correct |
4 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
600 KB |
Output is correct |
| 6 |
Correct |
6 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 |
4 ms |
344 KB |
Output is correct |
| 10 |
Correct |
5 ms |
600 KB |
Output is correct |
| 11 |
Correct |
5 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 |
9 ms |
344 KB |
Output is correct |
| 15 |
Correct |
7 ms |
344 KB |
Output is correct |
| 16 |
Correct |
8 ms |
344 KB |
Output is correct |
| 17 |
Correct |
5 ms |
600 KB |
Output is correct |
| 18 |
Correct |
6 ms |
344 KB |
Output is correct |
| 19 |
Correct |
5 ms |
344 KB |
Output is correct |
| 20 |
Correct |
5 ms |
344 KB |
Output is correct |
| 21 |
Correct |
6 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
344 KB |
Output is correct |
| 23 |
Correct |
8 ms |
344 KB |
Output is correct |
| 24 |
Correct |
9 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 |
7 ms |
344 KB |
Output is correct |
| 28 |
Correct |
7 ms |
344 KB |
Output is correct |
| 29 |
Correct |
7 ms |
344 KB |
Output is correct |
| 30 |
Correct |
6 ms |
344 KB |
Output is correct |
| 31 |
Correct |
8 ms |
344 KB |
Output is correct |
| 32 |
Correct |
7 ms |
344 KB |
Output is correct |
| 33 |
Correct |
12 ms |
344 KB |
Output is correct |
| 34 |
Correct |
8 ms |
344 KB |
Output is correct |
| 35 |
Correct |
7 ms |
344 KB |
Output is correct |
| 36 |
Correct |
8 ms |
344 KB |
Output is correct |
| 37 |
Correct |
6 ms |
688 KB |
Output is correct |
| 38 |
Correct |
8 ms |
436 KB |
Output is correct |
| 39 |
Correct |
8 ms |
432 KB |
Output is correct |
| 40 |
Correct |
6 ms |
600 KB |
Output is correct |
| 41 |
Correct |
8 ms |
696 KB |
Output is correct |
| 42 |
Correct |
8 ms |
860 KB |
Output is correct |
| 43 |
Correct |
5 ms |
344 KB |
Output is correct |
| 44 |
Correct |
5 ms |
344 KB |
Output is correct |
| 45 |
Correct |
5 ms |
344 KB |
Output is correct |
| 46 |
Correct |
5 ms |
600 KB |
Output is correct |
| 47 |
Partially correct |
7 ms |
344 KB |
Output is partially correct |
| 48 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 49 |
Partially correct |
9 ms |
436 KB |
Output is partially correct |
| 50 |
Partially correct |
7 ms |
344 KB |
Output is partially correct |
| 51 |
Partially correct |
7 ms |
600 KB |
Output is partially correct |
| 52 |
Correct |
6 ms |
436 KB |
Output is correct |
| 53 |
Correct |
7 ms |
344 KB |
Output is correct |
| 54 |
Correct |
7 ms |
608 KB |
Output is correct |
| 55 |
Correct |
6 ms |
432 KB |
Output is correct |
| 56 |
Partially correct |
9 ms |
600 KB |
Output is partially correct |
| 57 |
Partially correct |
8 ms |
592 KB |
Output is partially correct |
| 58 |
Partially correct |
8 ms |
600 KB |
Output is partially correct |
| 59 |
Partially correct |
9 ms |
344 KB |
Output is partially correct |
| 60 |
Correct |
8 ms |
344 KB |
Output is correct |
| 61 |
Correct |
6 ms |
600 KB |
Output is correct |
| 62 |
Correct |
5 ms |
856 KB |
Output is correct |
| 63 |
Partially correct |
7 ms |
440 KB |
Output is partially correct |
| 64 |
Partially correct |
7 ms |
448 KB |
Output is partially correct |
| 65 |
Partially correct |
7 ms |
612 KB |
Output is partially correct |
| 66 |
Partially correct |
7 ms |
600 KB |
Output is partially correct |
| 67 |
Correct |
7 ms |
604 KB |
Output is correct |
| 68 |
Correct |
9 ms |
864 KB |
Output is correct |
| 69 |
Partially correct |
8 ms |
696 KB |
Output is partially correct |
| 70 |
Partially correct |
7 ms |
696 KB |
Output is partially correct |
| 71 |
Partially correct |
10 ms |
864 KB |
Output is partially correct |
| 72 |
Partially correct |
7 ms |
608 KB |
Output is partially correct |
| 73 |
Partially correct |
7 ms |
864 KB |
Output is partially correct |
| 74 |
Partially correct |
9 ms |
868 KB |
Output is partially correct |
| 75 |
Correct |
7 ms |
696 KB |
Output is correct |
| 76 |
Correct |
8 ms |
616 KB |
Output is correct |
| 77 |
Partially correct |
10 ms |
452 KB |
Output is partially correct |
| 78 |
Partially correct |
8 ms |
960 KB |
Output is partially correct |
| 79 |
Partially correct |
8 ms |
856 KB |
Output is partially correct |
| 80 |
Partially correct |
7 ms |
1116 KB |
Output is partially correct |
| 81 |
Correct |
7 ms |
440 KB |
Output is correct |
| 82 |
Correct |
7 ms |
856 KB |
Output is correct |
