#include <bits/stdc++.h>
#include "longesttrip.h"
using namespace std;
typedef long long ll;
typedef pair<int,int> ii;
typedef pair<ll,ll> pll;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef vector<ll> vll;
typedef vector<pll> vpll;
#define PB push_back
#define PF push_front
#define PPB pop_back
#define PPF pop_front
#define X first
#define Y second
#define MP make_pair
#define all(x) (x).begin(), (x).end()
const int mod = 1e9 + 7; //998244353;
const int inf = 1e9 + 7;
const ll INF = 1e18 + 7;
const int logo = 20;
const int MAXN = 1e6 + 7;
const int off = 1 << logo;
const int trsz = off << 1;
const int dx[] = {1, -1, 0, 0};
const int dy[] = {0, 0, -1, 1};
void nadi(vi &a, vi b){
int lo = 0, hi = (int)a.size() - 1, ret = -1;
while(lo <= hi){
int mid = (lo + hi) / 2;
vi vec;
for(int i=0; i<=mid; i++) vec.PB(a[i]);
if(are_connected(vec, b)) ret = mid, hi = mid - 1;
else lo = mid + 1;
}
int vl = a[ret];
while(a.back() != vl){
int x = a.back();
a.PPB();
reverse(all(a));
a.PB(x);
reverse(all(a));
}
}
vi longest_trip(int n, int d){
vi a = {0}, b = {1};
vi arr;
for(int i=2; i<n; i++) arr.PB(i);
shuffle(all(arr), mt19937(time(0)));
bool nula = 0;
for(int j=2; j<n; j++){
int i = arr[j - 2];
if(are_connected({a.back()}, {i})){
a.PB(i);
nula = 0;
continue;
}
if(nula or are_connected({b.back()}, {i})){
b.PB(i);
nula = 1;
continue;
}
while(b.size()) a.PB(b.back()), b.PPB();
b.PB(i);
}
if(a.size() < b.size()) swap(a, b);
if(!are_connected(a, b)) return a;
if(are_connected({a.front()}, {b.front()})){
reverse(all(a));
reverse(all(b));
while(b.size()) a.PB(b.back()), b.PPB();
return a;
}
if(are_connected({a.front()}, {b.back()})){
reverse(all(a));
while(b.size()) a.PB(b.back()), b.PPB();
return a;
}
if(are_connected({a.back()}, {b.back()})){
while(b.size()) a.PB(b.back()), b.PPB();
return a;
}
nadi(b, a);
nadi(a, {b.back()});
while(b.size()) a.PB(b.back()), b.PPB();
return a;
}
| # |
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 |
7 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 |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
6 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 |
10 ms |
344 KB |
Output is correct |
| 7 |
Correct |
7 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 |
344 KB |
Output is correct |
| 12 |
Correct |
6 ms |
344 KB |
Output is correct |
| 13 |
Correct |
4 ms |
344 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
7 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 |
4 ms |
344 KB |
Output is correct |
| 6 |
Correct |
7 ms |
344 KB |
Output is correct |
| 7 |
Correct |
6 ms |
344 KB |
Output is correct |
| 8 |
Correct |
5 ms |
344 KB |
Output is correct |
| 9 |
Correct |
4 ms |
340 KB |
Output is correct |
| 10 |
Correct |
4 ms |
344 KB |
Output is correct |
| 11 |
Correct |
4 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 |
6 ms |
344 KB |
Output is correct |
| 16 |
Correct |
6 ms |
344 KB |
Output is correct |
| 17 |
Correct |
5 ms |
344 KB |
Output is correct |
| 18 |
Correct |
5 ms |
344 KB |
Output is correct |
| 19 |
Correct |
5 ms |
428 KB |
Output is correct |
| 20 |
Correct |
6 ms |
344 KB |
Output is correct |
| 21 |
Correct |
5 ms |
344 KB |
Output is correct |
| 22 |
Correct |
5 ms |
444 KB |
Output is correct |
| 23 |
Correct |
3 ms |
344 KB |
Output is correct |
| 24 |
Correct |
5 ms |
344 KB |
Output is correct |
| 25 |
Correct |
5 ms |
344 KB |
Output is correct |
| 26 |
Correct |
8 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 |
6 ms |
344 KB |
Output is correct |
| 31 |
Correct |
5 ms |
344 KB |
Output is correct |
| 32 |
Correct |
5 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 |
6 ms |
344 KB |
Output is correct |
| 36 |
Correct |
4 ms |
344 KB |
Output is correct |
| 37 |
Correct |
6 ms |
344 KB |
Output is correct |
| 38 |
Correct |
8 ms |
344 KB |
Output is correct |
| 39 |
Correct |
8 ms |
344 KB |
Output is correct |
| 40 |
Correct |
7 ms |
344 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 |
344 KB |
Output is correct |
| 44 |
Correct |
5 ms |
344 KB |
Output is correct |
| 45 |
Correct |
7 ms |
344 KB |
Output is correct |
| 46 |
Correct |
8 ms |
344 KB |
Output is correct |
| 47 |
Correct |
6 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 |
7 ms |
344 KB |
Output is correct |
| 51 |
Correct |
6 ms |
344 KB |
Output is correct |
| 52 |
Correct |
5 ms |
344 KB |
Output is correct |
| 53 |
Correct |
5 ms |
344 KB |
Output is correct |
| 54 |
Correct |
5 ms |
440 KB |
Output is correct |
| 55 |
Correct |
6 ms |
344 KB |
Output is correct |
| 56 |
Correct |
5 ms |
444 KB |
Output is correct |
| 57 |
Correct |
5 ms |
344 KB |
Output is correct |
| 58 |
Correct |
6 ms |
344 KB |
Output is correct |
| 59 |
Correct |
6 ms |
452 KB |
Output is correct |
| 60 |
Correct |
6 ms |
344 KB |
Output is correct |
| 61 |
Correct |
5 ms |
344 KB |
Output is correct |
| 62 |
Correct |
6 ms |
344 KB |
Output is correct |
| 63 |
Correct |
6 ms |
424 KB |
Output is correct |
| 64 |
Correct |
7 ms |
436 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 |
5 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 |
5 ms |
344 KB |
Output is correct |
| 8 |
Correct |
3 ms |
344 KB |
Output is correct |
| 9 |
Correct |
6 ms |
600 KB |
Output is correct |
| 10 |
Correct |
5 ms |
344 KB |
Output is correct |
| 11 |
Correct |
4 ms |
344 KB |
Output is correct |
| 12 |
Correct |
6 ms |
344 KB |
Output is correct |
| 13 |
Correct |
5 ms |
340 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 |
5 ms |
344 KB |
Output is correct |
| 18 |
Correct |
6 ms |
344 KB |
Output is correct |
| 19 |
Correct |
6 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 |
5 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 |
8 ms |
344 KB |
Output is correct |
| 26 |
Correct |
4 ms |
344 KB |
Output is correct |
| 27 |
Correct |
7 ms |
344 KB |
Output is correct |
| 28 |
Correct |
5 ms |
344 KB |
Output is correct |
| 29 |
Correct |
3 ms |
344 KB |
Output is correct |
| 30 |
Correct |
4 ms |
344 KB |
Output is correct |
| 31 |
Correct |
6 ms |
344 KB |
Output is correct |
| 32 |
Correct |
8 ms |
344 KB |
Output is correct |
| 33 |
Correct |
11 ms |
344 KB |
Output is correct |
| 34 |
Correct |
7 ms |
344 KB |
Output is correct |
| 35 |
Correct |
7 ms |
344 KB |
Output is correct |
| 36 |
Correct |
7 ms |
344 KB |
Output is correct |
| 37 |
Correct |
6 ms |
344 KB |
Output is correct |
| 38 |
Correct |
6 ms |
344 KB |
Output is correct |
| 39 |
Correct |
7 ms |
344 KB |
Output is correct |
| 40 |
Correct |
7 ms |
440 KB |
Output is correct |
| 41 |
Correct |
5 ms |
344 KB |
Output is correct |
| 42 |
Correct |
5 ms |
440 KB |
Output is correct |
| 43 |
Correct |
5 ms |
344 KB |
Output is correct |
| 44 |
Correct |
5 ms |
424 KB |
Output is correct |
| 45 |
Correct |
5 ms |
344 KB |
Output is correct |
| 46 |
Correct |
6 ms |
344 KB |
Output is correct |
| 47 |
Correct |
5 ms |
344 KB |
Output is correct |
| 48 |
Correct |
4 ms |
344 KB |
Output is correct |
| 49 |
Correct |
5 ms |
344 KB |
Output is correct |
| 50 |
Correct |
6 ms |
344 KB |
Output is correct |
| 51 |
Correct |
5 ms |
344 KB |
Output is correct |
| 52 |
Correct |
7 ms |
344 KB |
Output is correct |
| 53 |
Correct |
6 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 |
6 ms |
344 KB |
Output is correct |
| 57 |
Correct |
5 ms |
344 KB |
Output is correct |
| 58 |
Correct |
5 ms |
344 KB |
Output is correct |
| 59 |
Correct |
4 ms |
344 KB |
Output is correct |
| 60 |
Correct |
6 ms |
424 KB |
Output is correct |
| 61 |
Correct |
5 ms |
344 KB |
Output is correct |
| 62 |
Correct |
6 ms |
428 KB |
Output is correct |
| 63 |
Correct |
5 ms |
600 KB |
Output is correct |
| 64 |
Correct |
5 ms |
344 KB |
Output is correct |
| 65 |
Correct |
6 ms |
444 KB |
Output is correct |
| 66 |
Correct |
7 ms |
596 KB |
Output is correct |
| 67 |
Correct |
4 ms |
344 KB |
Output is correct |
| 68 |
Correct |
6 ms |
344 KB |
Output is correct |
| 69 |
Correct |
6 ms |
344 KB |
Output is correct |
| 70 |
Correct |
6 ms |
448 KB |
Output is correct |
| 71 |
Correct |
4 ms |
344 KB |
Output is correct |
| 72 |
Correct |
5 ms |
344 KB |
Output is correct |
| 73 |
Correct |
8 ms |
344 KB |
Output is correct |
| 74 |
Correct |
7 ms |
344 KB |
Output is correct |
| 75 |
Correct |
6 ms |
432 KB |
Output is correct |
| 76 |
Correct |
6 ms |
452 KB |
Output is correct |
| 77 |
Correct |
5 ms |
344 KB |
Output is correct |
| 78 |
Correct |
8 ms |
344 KB |
Output is correct |
| 79 |
Correct |
6 ms |
448 KB |
Output is correct |
| 80 |
Correct |
6 ms |
344 KB |
Output is correct |
| 81 |
Correct |
6 ms |
344 KB |
Output is correct |
| 82 |
Correct |
6 ms |
344 KB |
Output is correct |
