#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;
std::vector<int> longest_trip(int n, int d)
{
vector<int> A;
vector<int> B;
A.push_back(0);
for (int i = 1; i < n-1; i+=2)
{
if(are_connected({i},{i+1})){
if(are_connected({i}, {A.back()})){
A.push_back(i);
A.push_back(i+1);
}
else if(B.size()==0 || are_connected({i}, {B.back()})){
B.push_back(i);
B.push_back(i+1);
}
else {
for (int x = B.size()-1; x >= 0; x--) A.push_back(B[x]);
B.clear();
B.push_back(i);
B.push_back(i+1);
}
}else{
if(are_connected({i}, {A.back()})){
A.push_back(i);
if(B.size()==0 || are_connected({i}, {B.back()})){
for (int x = B.size()-1; x >= 0; x--) A.push_back(B[x]);
B.clear();
}
B.push_back(i+1);
}
else if(B.size()==0 || are_connected({i}, {B.back()})){
B.push_back(i);
A.push_back(i+1);
}
else {
A.push_back(i+1);
for (int x = B.size()-1; x >= 0; x--) A.push_back(B[x]);
B.clear();
B.push_back(i);
}
}
}
if(n%2==0){
int i=n-1;
if(are_connected({i}, {A.back()})) A.push_back(i);
else if(B.size()==0 || are_connected({i}, {B.back()})) B.push_back(i);
else {
for (int x = B.size()-1; x >= 0; x--) A.push_back(B[x]);
B.clear();
B.push_back(i);
}
}
if(A.size()<B.size()) swap(A,B);
vector<int> outp;
if(B.size()==0 || !are_connected({A},{B})) return A;
int aN=A.size(), bN=B.size();
vector<int> cornersA;
cornersA.push_back(A[0]);
cornersA.push_back(A[aN-1]);
if(aN==1) cornersA.pop_back();
vector<int> cornersB;
cornersB.push_back(B[0]);
cornersB.push_back(B[bN-1]);
if(bN==1) cornersB.pop_back();
if(are_connected({cornersA}, {cornersB})) {
if(are_connected({A[aN-1]}, {B[bN-1]})){
for (int i = 0; i < aN; i++) outp.push_back(A[i]);
for (int i = bN-1; i >= 0; i--) outp.push_back(B[i]);
// cout << "method1\n";
}else if(are_connected({A[aN-1]}, {B[0]})){
for (int i = 0; i < aN; i++) outp.push_back(A[i]);
for (int i = 0; i < bN; i++) outp.push_back(B[i]);
//cout << A.size() << " " << B.size() << " method2\n";
}else if(are_connected({A[0]}, {B[bN-1]})){
for (int i = aN-1; i >= 0; i--) outp.push_back(A[i]);
for (int i = bN-1; i >= 0; i--) outp.push_back(B[i]);
//cout << "method3\n";
}else if(are_connected({A[0]}, {B[0]})){
for (int i = aN-1; i >= 0; i--) outp.push_back(A[i]);
for (int i = 0; i < bN; i++) outp.push_back(B[i]);
//cout << "method4\n";
}
}
else{
int l=0;
int r=aN-1;
while(l<r)
{
int mid=(l+r)/2;
vector<int> vec;
for (int i = l; i <= mid; i++) vec.push_back(A[i]);
if(are_connected(vec, B)){
r=mid;
}else{
l=mid+1;
}
}
int aConnect=l;
l=0;
r=bN-1;
while(l<r)
{
int mid=(l+r)/2;
vector<int> vec;
for (int i = l; i <= mid; i++) vec.push_back(B[i]);
if(are_connected({A[aConnect]}, vec)){
r=mid;
}else{
l=mid+1;
}
}
int bConnect=l;
for (int i = aConnect+1; i < aN; i++) outp.push_back(A[i]);
for (int i = 0; i <= aConnect; i++) outp.push_back(A[i]);
for (int i = bConnect; i < bN; i++) outp.push_back(B[i]);
for (int i = 0; i < bConnect; i++) outp.push_back(B[i]);
//cout << "methodLast\n";
}
return outp;
}
| # |
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 |
6 ms |
344 KB |
Output is correct |
| 2 |
Correct |
6 ms |
344 KB |
Output is correct |
| 3 |
Correct |
4 ms |
344 KB |
Output is correct |
| 4 |
Correct |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
5 ms |
600 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 |
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 |
| 6 |
Correct |
9 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 |
600 KB |
Output is correct |
| 10 |
Correct |
4 ms |
344 KB |
Output is correct |
| 11 |
Correct |
5 ms |
600 KB |
Output is correct |
| 12 |
Correct |
4 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 ms |
596 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 |
4 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 |
10 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 |
432 KB |
Output is correct |
| 10 |
Correct |
4 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 |
4 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 |
8 ms |
344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
596 KB |
Output is correct |
| 18 |
Correct |
5 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 |
5 ms |
344 KB |
Output is correct |
| 22 |
Correct |
5 ms |
344 KB |
Output is correct |
| 23 |
Correct |
6 ms |
344 KB |
Output is correct |
| 24 |
Correct |
5 ms |
344 KB |
Output is correct |
| 25 |
Correct |
8 ms |
344 KB |
Output is correct |
| 26 |
Correct |
11 ms |
500 KB |
Output is correct |
| 27 |
Correct |
5 ms |
344 KB |
Output is correct |
| 28 |
Correct |
5 ms |
344 KB |
Output is correct |
| 29 |
Correct |
6 ms |
344 KB |
Output is correct |
| 30 |
Correct |
4 ms |
344 KB |
Output is correct |
| 31 |
Correct |
5 ms |
344 KB |
Output is correct |
| 32 |
Correct |
6 ms |
344 KB |
Output is correct |
| 33 |
Correct |
5 ms |
344 KB |
Output is correct |
| 34 |
Correct |
4 ms |
344 KB |
Output is correct |
| 35 |
Correct |
5 ms |
344 KB |
Output is correct |
| 36 |
Correct |
4 ms |
600 KB |
Output is correct |
| 37 |
Correct |
4 ms |
344 KB |
Output is correct |
| 38 |
Correct |
5 ms |
344 KB |
Output is correct |
| 39 |
Correct |
6 ms |
344 KB |
Output is correct |
| 40 |
Correct |
6 ms |
344 KB |
Output is correct |
| 41 |
Correct |
6 ms |
608 KB |
Output is correct |
| 42 |
Correct |
6 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 |
12 ms |
344 KB |
Output is correct |
| 46 |
Correct |
11 ms |
344 KB |
Output is correct |
| 47 |
Correct |
7 ms |
344 KB |
Output is correct |
| 48 |
Correct |
7 ms |
344 KB |
Output is correct |
| 49 |
Correct |
7 ms |
344 KB |
Output is correct |
| 50 |
Correct |
5 ms |
344 KB |
Output is correct |
| 51 |
Correct |
7 ms |
344 KB |
Output is correct |
| 52 |
Correct |
8 ms |
344 KB |
Output is correct |
| 53 |
Correct |
5 ms |
344 KB |
Output is correct |
| 54 |
Correct |
5 ms |
600 KB |
Output is correct |
| 55 |
Correct |
5 ms |
344 KB |
Output is correct |
| 56 |
Correct |
4 ms |
344 KB |
Output is correct |
| 57 |
Correct |
5 ms |
344 KB |
Output is correct |
| 58 |
Correct |
7 ms |
600 KB |
Output is correct |
| 59 |
Correct |
6 ms |
436 KB |
Output is correct |
| 60 |
Correct |
8 ms |
692 KB |
Output is correct |
| 61 |
Correct |
8 ms |
428 KB |
Output is correct |
| 62 |
Correct |
6 ms |
436 KB |
Output is correct |
| 63 |
Correct |
6 ms |
344 KB |
Output is correct |
| 64 |
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 |
5 ms |
344 KB |
Output is correct |
| 3 |
Correct |
4 ms |
344 KB |
Output is correct |
| 4 |
Correct |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
4 ms |
600 KB |
Output is correct |
| 6 |
Correct |
10 ms |
344 KB |
Output is correct |
| 7 |
Correct |
8 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 |
5 ms |
344 KB |
Output is correct |
| 11 |
Correct |
5 ms |
600 KB |
Output is correct |
| 12 |
Correct |
4 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 ms |
344 KB |
Output is correct |
| 14 |
Correct |
7 ms |
344 KB |
Output is correct |
| 15 |
Correct |
6 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 |
5 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 |
8 ms |
344 KB |
Output is correct |
| 22 |
Correct |
7 ms |
344 KB |
Output is correct |
| 23 |
Correct |
5 ms |
344 KB |
Output is correct |
| 24 |
Correct |
5 ms |
344 KB |
Output is correct |
| 25 |
Correct |
7 ms |
344 KB |
Output is correct |
| 26 |
Correct |
5 ms |
344 KB |
Output is correct |
| 27 |
Correct |
7 ms |
344 KB |
Output is correct |
| 28 |
Correct |
6 ms |
344 KB |
Output is correct |
| 29 |
Correct |
5 ms |
344 KB |
Output is correct |
| 30 |
Correct |
5 ms |
344 KB |
Output is correct |
| 31 |
Correct |
4 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 |
7 ms |
344 KB |
Output is correct |
| 35 |
Correct |
8 ms |
344 KB |
Output is correct |
| 36 |
Correct |
11 ms |
344 KB |
Output is correct |
| 37 |
Correct |
5 ms |
344 KB |
Output is correct |
| 38 |
Correct |
7 ms |
344 KB |
Output is correct |
| 39 |
Correct |
7 ms |
344 KB |
Output is correct |
| 40 |
Correct |
5 ms |
344 KB |
Output is correct |
| 41 |
Correct |
5 ms |
344 KB |
Output is correct |
| 42 |
Correct |
6 ms |
600 KB |
Output is correct |
| 43 |
Correct |
5 ms |
596 KB |
Output is correct |
| 44 |
Correct |
5 ms |
344 KB |
Output is correct |
| 45 |
Correct |
6 ms |
344 KB |
Output is correct |
| 46 |
Correct |
5 ms |
344 KB |
Output is correct |
| 47 |
Correct |
5 ms |
600 KB |
Output is correct |
| 48 |
Correct |
5 ms |
344 KB |
Output is correct |
| 49 |
Correct |
5 ms |
344 KB |
Output is correct |
| 50 |
Correct |
5 ms |
344 KB |
Output is correct |
| 51 |
Correct |
6 ms |
344 KB |
Output is correct |
| 52 |
Correct |
7 ms |
608 KB |
Output is correct |
| 53 |
Correct |
6 ms |
344 KB |
Output is correct |
| 54 |
Correct |
6 ms |
344 KB |
Output is correct |
| 55 |
Correct |
6 ms |
344 KB |
Output is correct |
| 56 |
Correct |
4 ms |
344 KB |
Output is correct |
| 57 |
Correct |
6 ms |
344 KB |
Output is correct |
| 58 |
Correct |
6 ms |
600 KB |
Output is correct |
| 59 |
Correct |
7 ms |
344 KB |
Output is correct |
| 60 |
Correct |
7 ms |
600 KB |
Output is correct |
| 61 |
Correct |
6 ms |
344 KB |
Output is correct |
| 62 |
Correct |
5 ms |
600 KB |
Output is correct |
| 63 |
Correct |
5 ms |
344 KB |
Output is correct |
| 64 |
Correct |
6 ms |
600 KB |
Output is correct |
| 65 |
Correct |
8 ms |
600 KB |
Output is correct |
| 66 |
Correct |
7 ms |
600 KB |
Output is correct |
| 67 |
Correct |
6 ms |
440 KB |
Output is correct |
| 68 |
Correct |
6 ms |
600 KB |
Output is correct |
| 69 |
Correct |
7 ms |
600 KB |
Output is correct |
| 70 |
Correct |
6 ms |
608 KB |
Output is correct |
| 71 |
Correct |
5 ms |
344 KB |
Output is correct |
| 72 |
Correct |
6 ms |
344 KB |
Output is correct |
| 73 |
Correct |
6 ms |
600 KB |
Output is correct |
| 74 |
Correct |
6 ms |
600 KB |
Output is correct |
| 75 |
Correct |
7 ms |
344 KB |
Output is correct |
| 76 |
Correct |
7 ms |
344 KB |
Output is correct |
| 77 |
Correct |
5 ms |
344 KB |
Output is correct |
| 78 |
Correct |
7 ms |
596 KB |
Output is correct |
| 79 |
Correct |
7 ms |
600 KB |
Output is correct |
| 80 |
Correct |
6 ms |
436 KB |
Output is correct |
| 81 |
Correct |
7 ms |
344 KB |
Output is correct |
| 82 |
Correct |
7 ms |
344 KB |
Output is correct |
