#include"longesttrip.h"
#include<iostream>
#include<algorithm>
using namespace std;
int n;
pair<int,int>find_conn(vector<int>v1,vector<int>v2){
for(int i:v1){
if(are_connected({i},v2)){
for(int j:v2){
if(are_connected({i},{j}))
return{i,j};
}
}
}
// impossible
exit(1);
}
vector<int>merge(vector<int>v1,vector<int>v2){
while(v2.size()){
v1.push_back(v2.back());
v2.pop_back();
}
return v1;
}
pair<vector<int>,vector<int>>merge(vector<int>v1,vector<int>v2,vector<int>v3){
if(are_connected({v1.back()},{v2.back()}))
return{merge(v1,v2),v3};
if(are_connected({v2.back()},{v3.back()}))
return{merge(v2,v3),v1};
return{merge(v1,v3),v2};
}
vector<int>cyclic_shift(vector<int>arr,int a){
// it ends with a
vector<int>res;
bool b1=false;
for(int i:arr){
if(b1)
res.push_back(i);
if(i==a)
b1=true;
}
bool b2=true;
for(int i:arr){
if(b2)
res.push_back(i);
if(i==a)
b2=false;
}
return res;
}
vector<int>longest_trip(int N,int D){
n=N;
vector<vector<int>>arr;
for(int i=0;i<n;i++)
arr.push_back({i});
while(arr.size()>2){
vector<int>v1,v2,v3;
v1=arr.back();
arr.pop_back();
v2=arr.back();
arr.pop_back();
v3=arr.back();
arr.pop_back();
auto res=merge(v1,v2,v3);
arr.push_back(res.first);
arr.push_back(res.second);
}
vector<int>res1=arr[0];
vector<int>res2=arr[1];
if(!are_connected(res1,res2)){
if(res1.size()>res2.size())
return res1;
else
return res2;
}
if(are_connected({res1.back()},{res2.back()}))
return merge(res1,res2);
reverse(res1.begin(),res1.end());
if(are_connected({res1.back()},{res2.back()}))
return merge(res1,res2);
reverse(res2.begin(),res2.end());
if(are_connected({res1.back()},{res2.back()}))
return merge(res1,res2);
reverse(res1.begin(),res1.end());
if(are_connected({res1.back()},{res2.back()}))
return merge(res1,res2);
// both must be cyclical then
auto pr=find_conn(res1,res2);
vector<int>r1=cyclic_shift(res1,pr.first);
vector<int>r2=cyclic_shift(res2,pr.second);
return merge(r1,r2);
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
2 ms |
468 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 |
6 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
544 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 ms |
344 KB |
Output is correct |
| 2 |
Correct |
8 ms |
344 KB |
Output is correct |
| 3 |
Correct |
5 ms |
344 KB |
Output is correct |
| 4 |
Correct |
6 ms |
344 KB |
Output is correct |
| 5 |
Correct |
8 ms |
552 KB |
Output is correct |
| 6 |
Correct |
5 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 |
552 KB |
Output is correct |
| 11 |
Correct |
6 ms |
344 KB |
Output is correct |
| 12 |
Correct |
6 ms |
600 KB |
Output is correct |
| 13 |
Correct |
8 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 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 |
6 ms |
344 KB |
Output is correct |
| 5 |
Correct |
6 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 |
440 KB |
Output is correct |
| 9 |
Correct |
6 ms |
344 KB |
Output is correct |
| 10 |
Correct |
9 ms |
552 KB |
Output is correct |
| 11 |
Correct |
7 ms |
344 KB |
Output is correct |
| 12 |
Correct |
6 ms |
548 KB |
Output is correct |
| 13 |
Correct |
9 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 |
10 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 |
6 ms |
344 KB |
Output is correct |
| 21 |
Correct |
10 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
552 KB |
Output is correct |
| 23 |
Correct |
7 ms |
344 KB |
Output is correct |
| 24 |
Correct |
8 ms |
344 KB |
Output is correct |
| 25 |
Correct |
5 ms |
344 KB |
Output is correct |
| 26 |
Correct |
7 ms |
344 KB |
Output is correct |
| 27 |
Correct |
8 ms |
344 KB |
Output is correct |
| 28 |
Correct |
10 ms |
344 KB |
Output is correct |
| 29 |
Correct |
8 ms |
344 KB |
Output is correct |
| 30 |
Correct |
10 ms |
344 KB |
Output is correct |
| 31 |
Correct |
8 ms |
344 KB |
Output is correct |
| 32 |
Correct |
10 ms |
344 KB |
Output is correct |
| 33 |
Correct |
7 ms |
600 KB |
Output is correct |
| 34 |
Correct |
9 ms |
344 KB |
Output is correct |
| 35 |
Correct |
9 ms |
344 KB |
Output is correct |
| 36 |
Correct |
8 ms |
596 KB |
Output is correct |
| 37 |
Correct |
9 ms |
596 KB |
Output is correct |
| 38 |
Correct |
11 ms |
344 KB |
Output is correct |
| 39 |
Correct |
12 ms |
344 KB |
Output is correct |
| 40 |
Correct |
14 ms |
600 KB |
Output is correct |
| 41 |
Correct |
10 ms |
344 KB |
Output is correct |
| 42 |
Correct |
12 ms |
344 KB |
Output is correct |
| 43 |
Correct |
10 ms |
344 KB |
Output is correct |
| 44 |
Correct |
10 ms |
344 KB |
Output is correct |
| 45 |
Correct |
8 ms |
344 KB |
Output is correct |
| 46 |
Correct |
13 ms |
344 KB |
Output is correct |
| 47 |
Correct |
9 ms |
344 KB |
Output is correct |
| 48 |
Correct |
9 ms |
344 KB |
Output is correct |
| 49 |
Correct |
8 ms |
344 KB |
Output is correct |
| 50 |
Correct |
8 ms |
344 KB |
Output is correct |
| 51 |
Correct |
10 ms |
344 KB |
Output is correct |
| 52 |
Correct |
12 ms |
344 KB |
Output is correct |
| 53 |
Correct |
7 ms |
344 KB |
Output is correct |
| 54 |
Correct |
10 ms |
344 KB |
Output is correct |
| 55 |
Correct |
11 ms |
452 KB |
Output is correct |
| 56 |
Correct |
9 ms |
344 KB |
Output is correct |
| 57 |
Correct |
16 ms |
600 KB |
Output is correct |
| 58 |
Correct |
11 ms |
532 KB |
Output is correct |
| 59 |
Correct |
12 ms |
508 KB |
Output is correct |
| 60 |
Correct |
12 ms |
344 KB |
Output is correct |
| 61 |
Correct |
18 ms |
764 KB |
Output is correct |
| 62 |
Correct |
11 ms |
512 KB |
Output is correct |
| 63 |
Correct |
15 ms |
464 KB |
Output is correct |
| 64 |
Correct |
21 ms |
600 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
9 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 |
8 ms |
356 KB |
Output is correct |
| 5 |
Correct |
6 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 |
9 ms |
600 KB |
Output is correct |
| 9 |
Correct |
7 ms |
344 KB |
Output is correct |
| 10 |
Correct |
8 ms |
344 KB |
Output is correct |
| 11 |
Correct |
6 ms |
344 KB |
Output is correct |
| 12 |
Correct |
6 ms |
344 KB |
Output is correct |
| 13 |
Correct |
6 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 |
10 ms |
344 KB |
Output is correct |
| 17 |
Correct |
7 ms |
436 KB |
Output is correct |
| 18 |
Correct |
7 ms |
344 KB |
Output is correct |
| 19 |
Correct |
7 ms |
344 KB |
Output is correct |
| 20 |
Correct |
7 ms |
600 KB |
Output is correct |
| 21 |
Correct |
7 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
344 KB |
Output is correct |
| 23 |
Correct |
10 ms |
344 KB |
Output is correct |
| 24 |
Correct |
7 ms |
344 KB |
Output is correct |
| 25 |
Correct |
7 ms |
388 KB |
Output is correct |
| 26 |
Correct |
8 ms |
600 KB |
Output is correct |
| 27 |
Correct |
9 ms |
344 KB |
Output is correct |
| 28 |
Correct |
9 ms |
344 KB |
Output is correct |
| 29 |
Correct |
8 ms |
344 KB |
Output is correct |
| 30 |
Correct |
12 ms |
600 KB |
Output is correct |
| 31 |
Correct |
9 ms |
340 KB |
Output is correct |
| 32 |
Correct |
10 ms |
344 KB |
Output is correct |
| 33 |
Correct |
14 ms |
344 KB |
Output is correct |
| 34 |
Correct |
8 ms |
344 KB |
Output is correct |
| 35 |
Correct |
13 ms |
344 KB |
Output is correct |
| 36 |
Correct |
6 ms |
344 KB |
Output is correct |
| 37 |
Correct |
8 ms |
344 KB |
Output is correct |
| 38 |
Correct |
13 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 |
9 ms |
344 KB |
Output is correct |
| 42 |
Correct |
9 ms |
344 KB |
Output is correct |
| 43 |
Correct |
7 ms |
344 KB |
Output is correct |
| 44 |
Correct |
6 ms |
344 KB |
Output is correct |
| 45 |
Correct |
7 ms |
600 KB |
Output is correct |
| 46 |
Correct |
8 ms |
344 KB |
Output is correct |
| 47 |
Partially correct |
7 ms |
344 KB |
Output is partially correct |
| 48 |
Partially correct |
10 ms |
600 KB |
Output is partially correct |
| 49 |
Partially correct |
9 ms |
344 KB |
Output is partially correct |
| 50 |
Partially correct |
8 ms |
344 KB |
Output is partially correct |
| 51 |
Partially correct |
14 ms |
512 KB |
Output is partially correct |
| 52 |
Partially correct |
14 ms |
344 KB |
Output is partially correct |
| 53 |
Partially correct |
12 ms |
344 KB |
Output is partially correct |
| 54 |
Partially correct |
10 ms |
512 KB |
Output is partially correct |
| 55 |
Partially correct |
9 ms |
344 KB |
Output is partially correct |
| 56 |
Partially correct |
10 ms |
344 KB |
Output is partially correct |
| 57 |
Partially correct |
11 ms |
476 KB |
Output is partially correct |
| 58 |
Partially correct |
10 ms |
344 KB |
Output is partially correct |
| 59 |
Partially correct |
12 ms |
756 KB |
Output is partially correct |
| 60 |
Partially correct |
11 ms |
344 KB |
Output is partially correct |
| 61 |
Partially correct |
11 ms |
596 KB |
Output is partially correct |
| 62 |
Partially correct |
13 ms |
344 KB |
Output is partially correct |
| 63 |
Partially correct |
15 ms |
688 KB |
Output is partially correct |
| 64 |
Partially correct |
12 ms |
528 KB |
Output is partially correct |
| 65 |
Partially correct |
17 ms |
344 KB |
Output is partially correct |
| 66 |
Partially correct |
10 ms |
344 KB |
Output is partially correct |
| 67 |
Partially correct |
14 ms |
344 KB |
Output is partially correct |
| 68 |
Partially correct |
17 ms |
600 KB |
Output is partially correct |
| 69 |
Partially correct |
12 ms |
596 KB |
Output is partially correct |
| 70 |
Partially correct |
11 ms |
340 KB |
Output is partially correct |
| 71 |
Partially correct |
12 ms |
544 KB |
Output is partially correct |
| 72 |
Partially correct |
13 ms |
344 KB |
Output is partially correct |
| 73 |
Partially correct |
16 ms |
516 KB |
Output is partially correct |
| 74 |
Partially correct |
18 ms |
600 KB |
Output is partially correct |
| 75 |
Partially correct |
14 ms |
344 KB |
Output is partially correct |
| 76 |
Partially correct |
13 ms |
660 KB |
Output is partially correct |
| 77 |
Partially correct |
11 ms |
344 KB |
Output is partially correct |
| 78 |
Partially correct |
11 ms |
492 KB |
Output is partially correct |
| 79 |
Partially correct |
12 ms |
464 KB |
Output is partially correct |
| 80 |
Partially correct |
19 ms |
1132 KB |
Output is partially correct |
| 81 |
Partially correct |
14 ms |
344 KB |
Output is partially correct |
| 82 |
Partially correct |
11 ms |
344 KB |
Output is partially correct |
