#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;
typedef long long ll;
vector<int> sciezka[2];
void dodaj_wierzcholek(int v){
if (!sciezka[0].size() || are_connected({v},{sciezka[0].back()})){
sciezka[0].push_back(v);
return;
}
if (!sciezka[1].size() || are_connected({v},{sciezka[1].back()})){
sciezka[1].push_back(v);
return;
}
for (int i = (int)sciezka[1].size()-1; i >= 0; i--) sciezka[0].push_back(sciezka[1][i]);
sciezka[1] = {v};
}
void dodaj_wierzcholki(int v1, int v2){
if (are_connected({v1},{v2})){
dodaj_wierzcholek(v1);
if (sciezka[0].back() == v1) sciezka[0].push_back(v2);
else sciezka[1].push_back(v2);
return;
}
if (!are_connected({v1},{sciezka[0].back()})) swap(v1,v2);
sciezka[0].push_back(v1);
if (are_connected({v1},{sciezka[1].back()})){
reverse(sciezka[1].begin(),sciezka[1].end());
for (int x : sciezka[1]) sciezka[0].push_back(x);
sciezka[1] = {v2};
}else sciezka[1].push_back(v2);
}
int zbinsearchuj(vector<int> A, vector<int> B){
if (A.size() == 1) return A.back();
vector<int> polowy[2];
for (int i = 0; i < (int)A.size(); i++){
polowy[i>=((int)A.size()/2)].push_back(A[i]);
}
if (are_connected(polowy[0],B)) return zbinsearchuj(polowy[0],B);
else return zbinsearchuj(polowy[1],B);
}
vector<int> longest_trip(int N, int D){
sciezka[0].clear();
sciezka[1].clear();
for (int i = 0; i < N; i++){
if (sciezka[0].size() && sciezka[1].size() && i < N-1){
dodaj_wierzcholki(i,i+1);
i++;
}else dodaj_wierzcholek(i);
}
if (sciezka[0].size() < sciezka[1].size()) swap(sciezka[0],sciezka[1]);
if (!sciezka[1].size()) return sciezka[0];
if (!are_connected(sciezka[0],sciezka[1])) return sciezka[0];
//
if (are_connected({sciezka[0].back()},{sciezka[1][0]})){
vector<int> wynik;
for (int x : sciezka[0]) wynik.push_back(x);
for (int x : sciezka[1]) wynik.push_back(x);
return wynik;
}
reverse(sciezka[0].begin(),sciezka[0].end());
if (are_connected({sciezka[0].back()},{sciezka[1][0]})){
vector<int> wynik;
for (int x : sciezka[0]) wynik.push_back(x);
for (int x : sciezka[1]) wynik.push_back(x);
return wynik;
}
reverse(sciezka[1].begin(),sciezka[1].end());
if (are_connected({sciezka[0].back()},{sciezka[1][0]})){
vector<int> wynik;
for (int x : sciezka[0]) wynik.push_back(x);
for (int x : sciezka[1]) wynik.push_back(x);
return wynik;
}
reverse(sciezka[0].begin(),sciezka[0].end());
if (are_connected({sciezka[0].back()},{sciezka[1][0]})){
vector<int> wynik;
for (int x : sciezka[0]) wynik.push_back(x);
for (int x : sciezka[1]) wynik.push_back(x);
return wynik;
}
//
int a = zbinsearchuj(sciezka[0],sciezka[1]);
int b = zbinsearchuj(sciezka[1],{a});
vector<int> wy[2];
bool flag = 0;
for (int x : sciezka[0]){
wy[flag].push_back(x);
if (x == a) flag = 1;
}
vector<int> wynik;
for (int x : wy[1]) wynik.push_back(x);
for (int x : wy[0]) wynik.push_back(x);
wy[0] = wy[1] = {};
flag = 0;
for (int x : sciezka[1]){
if (x == b) flag = 1;
wy[flag].push_back(x);
}
for (int x : wy[1]) wynik.push_back(x);
for (int x : wy[0]) wynik.push_back(x);
return wynik;
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
0 ms |
344 KB |
Output is correct |
| 2 |
Correct |
2 ms |
436 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
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 |
5 ms |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
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 |
4 ms |
344 KB |
Output is correct |
| 6 |
Correct |
8 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 |
5 ms |
600 KB |
Output is correct |
| 11 |
Correct |
5 ms |
344 KB |
Output is correct |
| 12 |
Correct |
5 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 ms |
344 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
6 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 |
5 ms |
344 KB |
Output is correct |
| 5 |
Correct |
4 ms |
344 KB |
Output is correct |
| 6 |
Correct |
8 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 |
596 KB |
Output is correct |
| 10 |
Correct |
4 ms |
344 KB |
Output is correct |
| 11 |
Correct |
4 ms |
596 KB |
Output is correct |
| 12 |
Correct |
4 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 ms |
600 KB |
Output is correct |
| 14 |
Correct |
7 ms |
344 KB |
Output is correct |
| 15 |
Correct |
7 ms |
344 KB |
Output is correct |
| 16 |
Correct |
9 ms |
344 KB |
Output is correct |
| 17 |
Correct |
6 ms |
344 KB |
Output is correct |
| 18 |
Correct |
8 ms |
596 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 |
600 KB |
Output is correct |
| 22 |
Correct |
5 ms |
600 KB |
Output is correct |
| 23 |
Correct |
5 ms |
344 KB |
Output is correct |
| 24 |
Correct |
5 ms |
600 KB |
Output is correct |
| 25 |
Correct |
6 ms |
344 KB |
Output is correct |
| 26 |
Correct |
11 ms |
344 KB |
Output is correct |
| 27 |
Correct |
5 ms |
344 KB |
Output is correct |
| 28 |
Correct |
5 ms |
344 KB |
Output is correct |
| 29 |
Correct |
5 ms |
344 KB |
Output is correct |
| 30 |
Correct |
4 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 |
5 ms |
600 KB |
Output is correct |
| 34 |
Correct |
5 ms |
344 KB |
Output is correct |
| 35 |
Correct |
5 ms |
344 KB |
Output is correct |
| 36 |
Correct |
4 ms |
344 KB |
Output is correct |
| 37 |
Correct |
5 ms |
344 KB |
Output is correct |
| 38 |
Correct |
6 ms |
600 KB |
Output is correct |
| 39 |
Correct |
5 ms |
344 KB |
Output is correct |
| 40 |
Correct |
7 ms |
600 KB |
Output is correct |
| 41 |
Correct |
6 ms |
344 KB |
Output is correct |
| 42 |
Correct |
6 ms |
344 KB |
Output is correct |
| 43 |
Correct |
6 ms |
344 KB |
Output is correct |
| 44 |
Correct |
6 ms |
344 KB |
Output is correct |
| 45 |
Correct |
10 ms |
344 KB |
Output is correct |
| 46 |
Correct |
8 ms |
344 KB |
Output is correct |
| 47 |
Correct |
7 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 |
7 ms |
600 KB |
Output is correct |
| 51 |
Correct |
7 ms |
436 KB |
Output is correct |
| 52 |
Correct |
8 ms |
432 KB |
Output is correct |
| 53 |
Correct |
5 ms |
344 KB |
Output is correct |
| 54 |
Correct |
5 ms |
344 KB |
Output is correct |
| 55 |
Correct |
5 ms |
344 KB |
Output is correct |
| 56 |
Correct |
5 ms |
440 KB |
Output is correct |
| 57 |
Correct |
6 ms |
444 KB |
Output is correct |
| 58 |
Correct |
6 ms |
856 KB |
Output is correct |
| 59 |
Correct |
6 ms |
436 KB |
Output is correct |
| 60 |
Correct |
6 ms |
604 KB |
Output is correct |
| 61 |
Correct |
6 ms |
600 KB |
Output is correct |
| 62 |
Correct |
6 ms |
604 KB |
Output is correct |
| 63 |
Correct |
6 ms |
440 KB |
Output is correct |
| 64 |
Correct |
6 ms |
600 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
5 ms |
340 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 |
8 ms |
384 KB |
Output is correct |
| 7 |
Correct |
5 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 |
540 KB |
Output is correct |
| 11 |
Correct |
4 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 |
7 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 |
6 ms |
344 KB |
Output is correct |
| 18 |
Correct |
5 ms |
344 KB |
Output is correct |
| 19 |
Correct |
6 ms |
600 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 |
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 |
4 ms |
344 KB |
Output is correct |
| 27 |
Correct |
6 ms |
344 KB |
Output is correct |
| 28 |
Correct |
6 ms |
344 KB |
Output is correct |
| 29 |
Correct |
5 ms |
440 KB |
Output is correct |
| 30 |
Correct |
5 ms |
344 KB |
Output is correct |
| 31 |
Correct |
5 ms |
344 KB |
Output is correct |
| 32 |
Correct |
8 ms |
344 KB |
Output is correct |
| 33 |
Correct |
8 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 |
9 ms |
344 KB |
Output is correct |
| 37 |
Correct |
6 ms |
432 KB |
Output is correct |
| 38 |
Correct |
9 ms |
436 KB |
Output is correct |
| 39 |
Correct |
7 ms |
440 KB |
Output is correct |
| 40 |
Correct |
6 ms |
600 KB |
Output is correct |
| 41 |
Correct |
5 ms |
344 KB |
Output is correct |
| 42 |
Correct |
6 ms |
344 KB |
Output is correct |
| 43 |
Correct |
6 ms |
600 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 |
344 KB |
Output is correct |
| 47 |
Correct |
5 ms |
344 KB |
Output is correct |
| 48 |
Correct |
5 ms |
344 KB |
Output is correct |
| 49 |
Correct |
7 ms |
600 KB |
Output is correct |
| 50 |
Correct |
5 ms |
344 KB |
Output is correct |
| 51 |
Correct |
6 ms |
600 KB |
Output is correct |
| 52 |
Correct |
6 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 |
7 ms |
344 KB |
Output is correct |
| 56 |
Correct |
5 ms |
344 KB |
Output is correct |
| 57 |
Correct |
7 ms |
600 KB |
Output is correct |
| 58 |
Correct |
6 ms |
344 KB |
Output is correct |
| 59 |
Correct |
6 ms |
608 KB |
Output is correct |
| 60 |
Correct |
6 ms |
344 KB |
Output is correct |
| 61 |
Correct |
8 ms |
344 KB |
Output is correct |
| 62 |
Correct |
5 ms |
440 KB |
Output is correct |
| 63 |
Correct |
6 ms |
440 KB |
Output is correct |
| 64 |
Correct |
6 ms |
696 KB |
Output is correct |
| 65 |
Correct |
6 ms |
436 KB |
Output is correct |
| 66 |
Correct |
7 ms |
860 KB |
Output is correct |
| 67 |
Correct |
7 ms |
688 KB |
Output is correct |
| 68 |
Correct |
6 ms |
440 KB |
Output is correct |
| 69 |
Correct |
7 ms |
600 KB |
Output is correct |
| 70 |
Correct |
9 ms |
600 KB |
Output is correct |
| 71 |
Correct |
5 ms |
440 KB |
Output is correct |
| 72 |
Correct |
6 ms |
696 KB |
Output is correct |
| 73 |
Correct |
6 ms |
604 KB |
Output is correct |
| 74 |
Correct |
7 ms |
600 KB |
Output is correct |
| 75 |
Correct |
6 ms |
856 KB |
Output is correct |
| 76 |
Correct |
8 ms |
604 KB |
Output is correct |
| 77 |
Correct |
5 ms |
440 KB |
Output is correct |
| 78 |
Correct |
6 ms |
436 KB |
Output is correct |
| 79 |
Correct |
7 ms |
604 KB |
Output is correct |
| 80 |
Correct |
7 ms |
856 KB |
Output is correct |
| 81 |
Correct |
9 ms |
604 KB |
Output is correct |
| 82 |
Correct |
6 ms |
692 KB |
Output is correct |
