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Submission #858268

# Submission time Handle Problem Language Result Execution time Memory
858268 2023-10-07T20:30:59 Z Danilo21 Longest Trip (IOI23_longesttrip) C++17
40 / 100
 18 ms 1124 KB 
#include <bits/stdc++.h>
#include "longesttrip.h"

#define ll long long
#define ld long double
#define pb push_back
#define fi first
#define se second
#define en '\n'
#define sp ' '
#define tb '\t'
#define ri(n) int n; cin >> n
#define rl(n) ll n; cin >> n
#define rs(s) string s; cin >> s
#define rc(c) char c; cin >> c
#define rv(v) for (auto &x : v) cin >> x
#define pven(v) for (auto x : v) cout << x << en
#define pv(v) for (auto x : v) cout << x << sp; cout << en
#define all(v) v.begin(), v.end()
#define rall(v) v.rbegin(), v.rend()
#define yes cout << "YES" << en
#define no cout << "NO" << en
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
#define ssort(a, b) if (a < b) swap(a, b)
#define bitcnt(a) (__builtin_popcountll(a))
#define bithigh(a) (63-__builtin_clzll(a))
#define lg bithigh
#define highpow(a) (1LL << (ll)lg(a))

using namespace std;

const ll LINF = 2e18;
const int mxN = 300, INF = 2e9;

vector<int> Connect(const vector<int>& a, const vector<int>& b){

    vector<int> v;
    for (int s : a) v.pb(s);
    reverse(all(v));
    for (int s : b) v.pb(s);
    return v;
}

vector<int> D3(int N){

    vector<vector<int> > trips;
    for (int i = 0; i < N; i++)
        trips.pb({i});
    while (trips.size() > 2){
        array<vector<int>, 3> a;
        for (int i = 0; i < 3; i++){
            a[i] = trips.back();
            trips.pop_back();
        }
        for (int i = 0; i < 3; i++){
            bool f = 0;
            for (int j = i+1; j < 3; j++){
                if (are_connected({a[i][0]}, {a[j][0]})){
                    trips.pb(Connect(a[i], a[j]));
                    trips.pb(a[3-i-j]);
                    f = 1;
                    break;
                }
            }
            if (f) break;
        }
    }
    array<vector<int>, 2> a = {trips[0], trips[0]};
    array<vector<int>, 2> b = {trips[1], trips[1]};
    reverse(all(a[1])); reverse(all(b[1]));
    for (int i = 0; i < 2; i++)
        for (int j = 0; j < 2; j++)
            if (are_connected({a[i][0]}, {b[j][0]}))
                return Connect(a[i], b[j]);
    return trips[0].size() > trips[1].size() ? trips[0] : trips[1];
}

vector<int> longest_trip(int N, int D){

    if (D == 1) return D3(N);
    vector<int> trip = {0};
    for (int i = 1; i < N; i++){
        bool f = are_connected({trip.back()}, {i});
        if (f){
            trip.pb(i);
            continue;
        }
        if (i < N-1){
            trip.pb(i+1);
            trip.pb(i);
            i++;
            continue;
        }
        reverse(all(trip));
        trip.pb(i);
    }
    return trip;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 344 KB Incorrect
2 Halted 0 ms 0 KB -

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 596 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

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 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 344 KB Output is correct
6 Correct 5 ms 344 KB Output is correct
7 Correct 4 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 4 ms 344 KB Output is correct
13 Correct 4 ms 344 KB Output is correct

Subtask #3
25.0 / 25.0

# 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 6 ms 344 KB Output is correct
4 Correct 5 ms 600 KB Output is correct
5 Correct 5 ms 996 KB Output is correct
6 Correct 11 ms 540 KB Output is correct
7 Correct 5 ms 344 KB Output is correct
8 Correct 5 ms 344 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 6 ms 736 KB Output is correct
11 Correct 5 ms 744 KB Output is correct
12 Correct 6 ms 860 KB Output is correct
13 Correct 5 ms 856 KB Output is correct
14 Correct 10 ms 344 KB Output is correct
15 Correct 11 ms 344 KB Output is correct
16 Correct 10 ms 600 KB Output is correct
17 Correct 7 ms 344 KB Output is correct
18 Correct 8 ms 612 KB Output is correct
19 Correct 7 ms 596 KB Output is correct
20 Correct 6 ms 344 KB Output is correct
21 Correct 6 ms 1004 KB Output is correct
22 Correct 6 ms 748 KB Output is correct
23 Correct 6 ms 752 KB Output is correct
24 Correct 5 ms 748 KB Output is correct
25 Correct 10 ms 600 KB Output is correct
26 Correct 10 ms 344 KB Output is correct
27 Correct 12 ms 344 KB Output is correct
28 Correct 18 ms 344 KB Output is correct
29 Correct 11 ms 344 KB Output is correct
30 Correct 8 ms 444 KB Output is correct
31 Correct 13 ms 444 KB Output is correct
32 Correct 11 ms 436 KB Output is correct
33 Correct 7 ms 616 KB Output is correct
34 Correct 13 ms 340 KB Output is correct
35 Correct 13 ms 600 KB Output is correct
36 Correct 9 ms 1116 KB Output is correct
37 Correct 16 ms 720 KB Output is correct
38 Correct 14 ms 1124 KB Output is correct
39 Correct 12 ms 712 KB Output is correct
40 Correct 12 ms 716 KB Output is correct
41 Correct 11 ms 856 KB Output is correct
42 Correct 12 ms 868 KB Output is correct
43 Correct 11 ms 600 KB Output is correct
44 Correct 12 ms 856 KB Output is correct
45 Correct 8 ms 344 KB Output is correct
46 Correct 11 ms 344 KB Output is correct
47 Correct 9 ms 344 KB Output is correct
48 Correct 8 ms 344 KB Output is correct
49 Correct 10 ms 344 KB Output is correct
50 Correct 11 ms 444 KB Output is correct
51 Correct 13 ms 440 KB Output is correct
52 Correct 11 ms 444 KB Output is correct
53 Correct 9 ms 856 KB Output is correct
54 Correct 10 ms 856 KB Output is correct
55 Correct 11 ms 344 KB Output is correct
56 Correct 12 ms 732 KB Output is correct
57 Correct 14 ms 744 KB Output is correct
58 Correct 14 ms 892 KB Output is correct
59 Correct 12 ms 992 KB Output is correct
60 Correct 13 ms 728 KB Output is correct
61 Correct 10 ms 624 KB Output is correct
62 Correct 12 ms 600 KB Output is correct
63 Correct 13 ms 724 KB Output is correct
64 Correct 12 ms 1112 KB Output is correct

Subtask #4
0.0 / 60.0

# 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 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 5 ms 480 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 344 KB Output is correct
10 Correct 5 ms 996 KB Output is correct
11 Correct 5 ms 996 KB Output is correct
12 Correct 6 ms 876 KB Output is correct
13 Correct 5 ms 496 KB Output is correct
14 Correct 11 ms 344 KB Output is correct
15 Correct 11 ms 344 KB Output is correct
16 Incorrect 1 ms 344 KB Incorrect
17 Halted 0 ms 0 KB -