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Submission #840783

# Submission time Handle Problem Language Result Execution time Memory
840783 2023-08-31T17:03:01 Z emeraldblock Longest Trip (IOI23_longesttrip) C++17
100 / 100
 22 ms 336 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>

using namespace std;

std::vector<int> longest_trip(int N, int D)
{
    vector<int> s1({0}),s2({1});
    auto mrg = [&]() {
        while (!s2.empty()) {
            s1.push_back(s2.back());
            s2.pop_back();
        }
    };
    bool sep = false;
    for (int i = 2; i < N; ++i) {
        if (are_connected({s1.back()}, {i})) {
            s1.push_back(i);
            sep = false;
        } else if (sep || are_connected({s2.back()}, {i})) {
            s2.push_back(i);
            sep = true;
        } else {
            mrg();
            s2.push_back(i);
        }
    }
    if (!are_connected(s1, s2)) {
        return s1.size() >= s2.size() ? s1 : s2;
    }
    auto rot = [&](vector<int>& a, const vector<int>& b) {
        if (are_connected(b,{a.front()})) {
            reverse(a.begin(),a.end());
            return;
        }
        int lo = 0, hi = a.size();
        while (hi-lo>1) {
            int mid = (lo+hi)/2;
            vector<int> v;
            for (int i = mid; i < hi; ++i) {
                v.push_back(a[i]);
            }
            if (!are_connected(b, v)) {
                hi = mid;
            } else {
                lo = mid;
            }
        }
        rotate(a.begin(),a.begin()+hi,a.end());
    };
    rot(s2,s1);
    rot(s1,{s2.back()});
    mrg();
    return s1;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 208 KB Output is correct
2 Correct 3 ms 208 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 208 KB Output is correct
2 Correct 9 ms 208 KB Output is correct
3 Correct 10 ms 208 KB Output is correct
4 Correct 6 ms 208 KB Output is correct
5 Correct 9 ms 208 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 208 KB Output is correct
2 Correct 11 ms 208 KB Output is correct
3 Correct 10 ms 208 KB Output is correct
4 Correct 11 ms 208 KB Output is correct
5 Correct 8 ms 208 KB Output is correct
6 Correct 8 ms 208 KB Output is correct
7 Correct 10 ms 208 KB Output is correct
8 Correct 8 ms 208 KB Output is correct
9 Correct 10 ms 208 KB Output is correct
10 Correct 10 ms 276 KB Output is correct
11 Correct 6 ms 208 KB Output is correct
12 Correct 9 ms 208 KB Output is correct
13 Correct 6 ms 208 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 208 KB Output is correct
2 Correct 12 ms 332 KB Output is correct
3 Correct 8 ms 208 KB Output is correct
4 Correct 10 ms 208 KB Output is correct
5 Correct 10 ms 208 KB Output is correct
6 Correct 18 ms 208 KB Output is correct
7 Correct 9 ms 208 KB Output is correct
8 Correct 10 ms 208 KB Output is correct
9 Correct 12 ms 320 KB Output is correct
10 Correct 5 ms 208 KB Output is correct
11 Correct 5 ms 208 KB Output is correct
12 Correct 10 ms 208 KB Output is correct
13 Correct 7 ms 208 KB Output is correct
14 Correct 10 ms 208 KB Output is correct
15 Correct 12 ms 208 KB Output is correct
16 Correct 22 ms 208 KB Output is correct
17 Correct 10 ms 208 KB Output is correct
18 Correct 14 ms 208 KB Output is correct
19 Correct 11 ms 296 KB Output is correct
20 Correct 11 ms 208 KB Output is correct
21 Correct 11 ms 300 KB Output is correct
22 Correct 12 ms 208 KB Output is correct
23 Correct 11 ms 208 KB Output is correct
24 Correct 11 ms 296 KB Output is correct
25 Correct 9 ms 208 KB Output is correct
26 Correct 11 ms 220 KB Output is correct
27 Correct 8 ms 208 KB Output is correct
28 Correct 11 ms 208 KB Output is correct
29 Correct 8 ms 208 KB Output is correct
30 Correct 8 ms 208 KB Output is correct
31 Correct 8 ms 208 KB Output is correct
32 Correct 11 ms 208 KB Output is correct
33 Correct 5 ms 208 KB Output is correct
34 Correct 10 ms 208 KB Output is correct
35 Correct 11 ms 208 KB Output is correct
36 Correct 9 ms 208 KB Output is correct
37 Correct 10 ms 308 KB Output is correct
38 Correct 8 ms 208 KB Output is correct
39 Correct 11 ms 208 KB Output is correct
40 Correct 11 ms 296 KB Output is correct
41 Correct 7 ms 208 KB Output is correct
42 Correct 9 ms 208 KB Output is correct
43 Correct 7 ms 208 KB Output is correct
44 Correct 12 ms 208 KB Output is correct
45 Correct 17 ms 208 KB Output is correct
46 Correct 12 ms 208 KB Output is correct
47 Correct 9 ms 208 KB Output is correct
48 Correct 10 ms 208 KB Output is correct
49 Correct 15 ms 208 KB Output is correct
50 Correct 9 ms 208 KB Output is correct
51 Correct 9 ms 208 KB Output is correct
52 Correct 9 ms 208 KB Output is correct
53 Correct 6 ms 208 KB Output is correct
54 Correct 10 ms 208 KB Output is correct
55 Correct 8 ms 208 KB Output is correct
56 Correct 10 ms 208 KB Output is correct
57 Correct 8 ms 208 KB Output is correct
58 Correct 13 ms 336 KB Output is correct
59 Correct 10 ms 284 KB Output is correct
60 Correct 13 ms 208 KB Output is correct
61 Correct 13 ms 208 KB Output is correct
62 Correct 8 ms 208 KB Output is correct
63 Correct 10 ms 208 KB Output is correct
64 Correct 12 ms 208 KB Output is correct

Subtask #4
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 15 ms 208 KB Output is correct
2 Correct 8 ms 208 KB Output is correct
3 Correct 10 ms 208 KB Output is correct
4 Correct 6 ms 208 KB Output is correct
5 Correct 7 ms 208 KB Output is correct
6 Correct 8 ms 208 KB Output is correct
7 Correct 9 ms 208 KB Output is correct
8 Correct 11 ms 260 KB Output is correct
9 Correct 9 ms 304 KB Output is correct
10 Correct 7 ms 208 KB Output is correct
11 Correct 5 ms 208 KB Output is correct
12 Correct 7 ms 208 KB Output is correct
13 Correct 10 ms 208 KB Output is correct
14 Correct 10 ms 208 KB Output is correct
15 Correct 11 ms 208 KB Output is correct
16 Correct 13 ms 208 KB Output is correct
17 Correct 9 ms 208 KB Output is correct
18 Correct 9 ms 208 KB Output is correct
19 Correct 8 ms 208 KB Output is correct
20 Correct 11 ms 332 KB Output is correct
21 Correct 11 ms 208 KB Output is correct
22 Correct 14 ms 208 KB Output is correct
23 Correct 7 ms 208 KB Output is correct
24 Correct 6 ms 208 KB Output is correct
25 Correct 8 ms 208 KB Output is correct
26 Correct 9 ms 208 KB Output is correct
27 Correct 7 ms 208 KB Output is correct
28 Correct 10 ms 208 KB Output is correct
29 Correct 6 ms 208 KB Output is correct
30 Correct 8 ms 208 KB Output is correct
31 Correct 8 ms 208 KB Output is correct
32 Correct 17 ms 208 KB Output is correct
33 Correct 11 ms 208 KB Output is correct
34 Correct 14 ms 208 KB Output is correct
35 Correct 15 ms 208 KB Output is correct
36 Correct 11 ms 208 KB Output is correct
37 Correct 8 ms 208 KB Output is correct
38 Correct 13 ms 208 KB Output is correct
39 Correct 10 ms 208 KB Output is correct
40 Correct 8 ms 208 KB Output is correct
41 Correct 9 ms 208 KB Output is correct
42 Correct 8 ms 208 KB Output is correct
43 Correct 10 ms 208 KB Output is correct
44 Correct 7 ms 300 KB Output is correct
45 Correct 10 ms 208 KB Output is correct
46 Correct 11 ms 300 KB Output is correct
47 Correct 9 ms 208 KB Output is correct
48 Correct 9 ms 208 KB Output is correct
49 Correct 11 ms 208 KB Output is correct
50 Correct 5 ms 208 KB Output is correct
51 Correct 7 ms 208 KB Output is correct
52 Correct 11 ms 208 KB Output is correct
53 Correct 12 ms 208 KB Output is correct
54 Correct 11 ms 208 KB Output is correct
55 Correct 11 ms 208 KB Output is correct
56 Correct 7 ms 208 KB Output is correct
57 Correct 7 ms 208 KB Output is correct
58 Correct 11 ms 208 KB Output is correct
59 Correct 10 ms 292 KB Output is correct
60 Correct 10 ms 208 KB Output is correct
61 Correct 9 ms 304 KB Output is correct
62 Correct 10 ms 208 KB Output is correct
63 Correct 9 ms 208 KB Output is correct
64 Correct 7 ms 208 KB Output is correct
65 Correct 12 ms 280 KB Output is correct
66 Correct 9 ms 208 KB Output is correct
67 Correct 11 ms 208 KB Output is correct
68 Correct 9 ms 208 KB Output is correct
69 Correct 11 ms 208 KB Output is correct
70 Correct 10 ms 208 KB Output is correct
71 Correct 8 ms 208 KB Output is correct
72 Correct 10 ms 208 KB Output is correct
73 Correct 9 ms 208 KB Output is correct
74 Correct 11 ms 304 KB Output is correct
75 Correct 10 ms 208 KB Output is correct
76 Correct 11 ms 208 KB Output is correct
77 Correct 8 ms 208 KB Output is correct
78 Correct 10 ms 208 KB Output is correct
79 Correct 12 ms 208 KB Output is correct
80 Correct 9 ms 332 KB Output is correct
81 Correct 12 ms 208 KB Output is correct
82 Correct 11 ms 208 KB Output is correct