oj.uz

답안 #845482

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
845482 2023-09-06T13:49:35 Z LucaDantas 가장 긴 여행 (IOI23_longesttrip) C++17
100 / 100
 16 ms 856 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std; 

mt19937 rng(random_device{}());

int get(vector<int> a, const vector<int>& b) {
    if(a.size() == 1) return a.back();
    vector<int> a2;
    while(a.size() > a2.size())
        a2.push_back(a.back()), a.pop_back();
    reverse(a2.begin(), a2.end());
    if(are_connected(a, b))
        return get(a, b);
    return get(a2, b);
}

void ajusta(vector<int>& a, int a1) {
    vector<int> aux;
    while(a.back() != a1) {
        aux.push_back(a.back());
        a.pop_back();
    }
    reverse(aux.begin(), aux.end());
    for(int x : a)
        aux.push_back(x);
    a = aux;
}

vector<int> longest_trip(int N, int D)
{
    vector<int> perm(N); iota(perm.begin(), perm.end(), 0);
    shuffle(perm.begin(), perm.end(), rng);
    vector<int> a = { perm.back() }; perm.pop_back();
    vector<int> b;
    bool topos_disconexos = 1;
    while(perm.size()) {
        int x = perm.back();
        perm.pop_back();

        if(are_connected({x}, {a.back()})) {
            a.push_back(x);
            topos_disconexos = b.size() == 0;
        } else if(topos_disconexos) {
            b.push_back(x);
        } else {
            if(are_connected({x}, {b.back()})) {
                b.push_back(x);
                topos_disconexos = 1;
            } else {
                reverse(b.begin(), b.end());
                for(int k : b)
                    a.push_back(k);
                if(b.size() == 1)
                    topos_disconexos = 1;
                b.clear();
                b.push_back(x);
            }
        }
    }

    if(!b.size()) return a;

    for(int i = 0; i < 2; i++, reverse(a.begin(), a.end())) {
        for(int j = 0; j < 2; j++, reverse(b.begin(), b.end())) {
            if(are_connected({a.back()}, {b.front()})) {
                for(int x : b)
                    a.push_back(x);
                return a;
            }
        }
    }

    if(!are_connected(a, b))
        return a.size() > b.size() ? a : b;

    int a1 = get(a, b);
    int b1 = get(b, {a1});

    ajusta(a, a1);
    ajusta(b, b1);

    reverse(b.begin(), b.end());
    
    for(int x : b)
        a.push_back(x);
    b.clear();

    return a;
}

Subtask #0
0.0 / 0.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 1 ms 600 KB Output is correct

Subtask #1
5.0 / 5.0

# 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 5 ms 344 KB Output is correct
5 Correct 5 ms 344 KB Output is correct

Subtask #2
10.0 / 10.0

# 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 5 ms 344 KB Output is correct
4 Correct 5 ms 344 KB Output is correct
5 Correct 5 ms 600 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 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 5 ms 600 KB Output is correct

Subtask #3
25.0 / 25.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 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 500 KB Output is correct
5 Correct 5 ms 636 KB Output is correct
6 Correct 9 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 5 ms 596 KB Output is correct
10 Correct 5 ms 600 KB Output is correct
11 Correct 7 ms 604 KB Output is correct
12 Correct 6 ms 444 KB Output is correct
13 Correct 5 ms 348 KB Output is correct
14 Correct 16 ms 344 KB Output is correct
15 Correct 12 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 5 ms 600 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 608 KB Output is correct
23 Correct 5 ms 344 KB Output is correct
24 Correct 6 ms 600 KB Output is correct
25 Correct 12 ms 344 KB Output is correct
26 Correct 12 ms 420 KB Output is correct
27 Correct 8 ms 344 KB Output is correct
28 Correct 8 ms 344 KB Output is correct
29 Correct 8 ms 344 KB Output is correct
30 Correct 5 ms 344 KB Output is correct
31 Correct 5 ms 344 KB Output is correct
32 Correct 6 ms 596 KB Output is correct
33 Correct 6 ms 600 KB Output is correct
34 Correct 5 ms 600 KB Output is correct
35 Correct 5 ms 436 KB Output is correct
36 Correct 6 ms 600 KB Output is correct
37 Correct 5 ms 344 KB Output is correct
38 Correct 6 ms 344 KB Output is correct
39 Correct 6 ms 344 KB Output is correct
40 Correct 7 ms 344 KB Output is correct
41 Correct 6 ms 344 KB Output is correct
42 Correct 6 ms 344 KB Output is correct
43 Correct 5 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 9 ms 344 KB Output is correct
47 Correct 8 ms 344 KB Output is correct
48 Correct 9 ms 344 KB Output is correct
49 Correct 9 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 596 KB Output is correct
53 Correct 5 ms 600 KB Output is correct
54 Correct 6 ms 600 KB Output is correct
55 Correct 5 ms 344 KB Output is correct
56 Correct 5 ms 448 KB Output is correct
57 Correct 6 ms 600 KB Output is correct
58 Correct 7 ms 604 KB Output is correct
59 Correct 7 ms 604 KB Output is correct
60 Correct 10 ms 600 KB Output is correct
61 Correct 7 ms 344 KB Output is correct
62 Correct 6 ms 600 KB Output is correct
63 Correct 6 ms 696 KB Output is correct
64 Correct 7 ms 700 KB Output is correct

Subtask #4
60.0 / 60.0

# 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 7 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 5 ms 344 KB Output is correct
14 Correct 15 ms 344 KB Output is correct
15 Correct 9 ms 344 KB Output is correct
16 Correct 8 ms 344 KB Output is correct
17 Correct 6 ms 340 KB Output is correct
18 Correct 6 ms 344 KB Output is correct
19 Correct 6 ms 340 KB Output is correct
20 Correct 5 ms 344 KB Output is correct
21 Correct 11 ms 344 KB Output is correct
22 Correct 11 ms 344 KB Output is correct
23 Correct 7 ms 344 KB Output is correct
24 Correct 9 ms 344 KB Output is correct
25 Correct 8 ms 344 KB Output is correct
26 Correct 6 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 436 KB Output is correct
30 Correct 5 ms 344 KB Output is correct
31 Correct 6 ms 440 KB Output is correct
32 Correct 9 ms 344 KB Output is correct
33 Correct 9 ms 344 KB Output is correct
34 Correct 8 ms 344 KB Output is correct
35 Correct 7 ms 344 KB Output is correct
36 Correct 10 ms 344 KB Output is correct
37 Correct 6 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 6 ms 436 KB Output is correct
41 Correct 5 ms 344 KB Output is correct
42 Correct 6 ms 344 KB Output is correct
43 Correct 5 ms 344 KB Output is correct
44 Correct 6 ms 344 KB Output is correct
45 Correct 7 ms 344 KB Output is correct
46 Correct 5 ms 344 KB Output is correct
47 Correct 4 ms 344 KB Output is correct
48 Correct 5 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 6 ms 600 KB Output is correct
53 Correct 7 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 5 ms 436 KB Output is correct
58 Correct 6 ms 600 KB Output is correct
59 Correct 7 ms 600 KB Output is correct
60 Correct 6 ms 344 KB Output is correct
61 Correct 6 ms 344 KB Output is correct
62 Correct 5 ms 344 KB Output is correct
63 Correct 6 ms 436 KB Output is correct
64 Correct 7 ms 604 KB Output is correct
65 Correct 6 ms 444 KB Output is correct
66 Correct 7 ms 600 KB Output is correct
67 Correct 7 ms 600 KB Output is correct
68 Correct 7 ms 344 KB Output is correct
69 Correct 7 ms 600 KB Output is correct
70 Correct 7 ms 604 KB Output is correct
71 Correct 5 ms 444 KB Output is correct
72 Correct 6 ms 440 KB Output is correct
73 Correct 7 ms 600 KB Output is correct
74 Correct 6 ms 600 KB Output is correct
75 Correct 8 ms 344 KB Output is correct
76 Correct 6 ms 344 KB Output is correct
77 Correct 6 ms 604 KB Output is correct
78 Correct 9 ms 600 KB Output is correct
79 Correct 7 ms 856 KB Output is correct
80 Correct 7 ms 440 KB Output is correct
81 Correct 7 ms 344 KB Output is correct
82 Correct 9 ms 344 KB Output is correct