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Submission #1038349

# Submission time Handle Problem Language Result Execution time Memory
1038349 2024-07-29T17:17:32 Z Andrey Longest Trip (IOI23_longesttrip) C++17
100 / 100
 13 ms 600 KB 
#include "longesttrip.h"
#include<bits/stdc++.h>
using namespace std;

int n;

int dude(vector<int>& wow, vector<int>& wut, int y) {
    vector<int> a(0);
    vector<int> b(0);
    if(y == -1) {
        for(int i = 0; i < wut.size(); i++) {
            b.push_back(wut[i]);
        }
    }
    else {
        b.push_back(wut[y]);
    }
    int l = 0,r = wow.size()-1;
    while(l < r) {
        int m = (l+r)/2;
        a.clear();
        for(int i = l; i <= m; i++) {
            a.push_back(wow[i]);
        }
        if(are_connected(a,b)) {
            r = m;
        }
        else {
            l = m+1;
        }
    }
    return l;
}
 
std::vector<int> longest_trip(int N, int D)
{
    n = N;
    vector<int> wow(0);
    vector<int> wut(0);
    wow.push_back(0);
    wut.push_back(1);
    for(int i = 2; i < n; i+=2) {
        bool a = are_connected({i},{wow[wow.size()-1]});
        if(a) {
            wow.push_back(i);
            i--;
            continue;
        }
        bool b = are_connected({i},{wut[wut.size()-1]});
        if(i == n-1) {
            if(b) {
                wut.push_back(i);
            }
            else {
                for(int j = wut.size()-1; j >= 0; j--) {
                    wow.push_back(wut[j]);
                }
                wut.clear();
                wut.push_back(i);
            }
        }
        else {
            bool c = are_connected({i},{i+1});
            if(b&c) {
                wut.push_back(i);
                wut.push_back(i+1);
            }
            else if((!b)&c) {
                for(int j = wut.size()-1; j >= 0; j--) {
                    wow.push_back(wut[j]);
                }
                wut.clear();
                wut.push_back(i);
                wut.push_back(i+1);
            }
            else if(b&(!c)) {
                wut.push_back(i);
                wow.push_back(i+1);
            }
            else {
                wow.push_back(i+1);
                for(int j = wut.size()-1; j >= 0; j--) {
                    wow.push_back(wut[j]);
                }
                wut.clear();
                wut.push_back(i);
            }
        }
    }
    vector<int> ans(0);
    if(are_connected({wow[0]},{wut[0]})) {
        for(int i = wow.size()-1; i >= 0; i--) {
            ans.push_back(wow[i]);
        }
        for(int i = 0; i < wut.size(); i++) {
            ans.push_back(wut[i]);
        }
        return ans;
    }
    if(are_connected({wow[wow.size()-1]},{wut[0]})) {
        for(int i = 0; i < wow.size(); i++) {
            ans.push_back(wow[i]);
        }
        for(int i = 0; i < wut.size(); i++) {
            ans.push_back(wut[i]);
        }
        return ans;
    }
    if(are_connected({wow[0]},{wut[wut.size()-1]})) {
        for(int i = wow.size()-1; i >= 0; i--) {
            ans.push_back(wow[i]);
        }
        for(int i = wut.size()-1; i >= 0; i--) {
            ans.push_back(wut[i]);
        }
        return ans;
    }
    vector<int> a(0);
    vector<int> b(0);
    for(int i = 0; i < wow.size(); i++) {
        a.push_back(wow[i]);
    }
    for(int i = 0; i < wut.size(); i++) {
        b.push_back(wut[i]);
    }
    if(!are_connected(a,b)) {
        if(a.size() > b.size()) {
            return a;
        }
        else {
            return b;
        }
    }
    int x1 = dude(wow,wut,-1);
    int x2 = dude(wut,wow,x1);
    for(int i = x1+1; i < wow.size(); i++) {
        ans.push_back(wow[i]);
    }
    for(int i = 0; i <= x1; i++) {
        ans.push_back(wow[i]);
    }
    for(int i = x2; i < wut.size(); i++) {
        ans.push_back(wut[i]);
    }
    for(int i = 0; i < x2; i++) {
        ans.push_back(wut[i]);
    }
    return ans;
}

Compilation message

longesttrip.cpp: In function 'int dude(std::vector<int>&, std::vector<int>&, int)':
longesttrip.cpp:11:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |         for(int i = 0; i < wut.size(); i++) {
      |                        ~~^~~~~~~~~~~~
longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:95:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |         for(int i = 0; i < wut.size(); i++) {
      |                        ~~^~~~~~~~~~~~
longesttrip.cpp:101:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |         for(int i = 0; i < wow.size(); i++) {
      |                        ~~^~~~~~~~~~~~
longesttrip.cpp:104:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  104 |         for(int i = 0; i < wut.size(); i++) {
      |                        ~~^~~~~~~~~~~~
longesttrip.cpp:120:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  120 |     for(int i = 0; i < wow.size(); i++) {
      |                    ~~^~~~~~~~~~~~
longesttrip.cpp:123:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  123 |     for(int i = 0; i < wut.size(); i++) {
      |                    ~~^~~~~~~~~~~~
longesttrip.cpp:136:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  136 |     for(int i = x1+1; i < wow.size(); i++) {
      |                       ~~^~~~~~~~~~~~
longesttrip.cpp:142:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  142 |     for(int i = x2; i < wut.size(); i++) {
      |                     ~~^~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 2 ms 344 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 6 ms 344 KB Output is correct
4 Correct 5 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 4 ms 344 KB Output is correct
2 Correct 5 ms 344 KB Output is correct
3 Correct 3 ms 344 KB Output is correct
4 Correct 7 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 6 ms 344 KB Output is correct
8 Correct 3 ms 340 KB Output is correct
9 Correct 5 ms 344 KB Output is correct
10 Correct 6 ms 340 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 4 ms 344 KB Output is correct
13 Correct 6 ms 344 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 340 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 6 ms 344 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 5 ms 344 KB Output is correct
11 Correct 5 ms 344 KB Output is correct
12 Correct 7 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 10 ms 344 KB Output is correct
15 Correct 11 ms 344 KB Output is correct
16 Correct 6 ms 344 KB Output is correct
17 Correct 6 ms 344 KB Output is correct
18 Correct 6 ms 344 KB Output is correct
19 Correct 6 ms 600 KB Output is correct
20 Correct 7 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 10 ms 344 KB Output is correct
26 Correct 9 ms 344 KB Output is correct
27 Correct 7 ms 356 KB Output is correct
28 Correct 8 ms 344 KB Output is correct
29 Correct 7 ms 344 KB Output is correct
30 Correct 7 ms 344 KB Output is correct
31 Correct 6 ms 344 KB Output is correct
32 Correct 7 ms 344 KB Output is correct
33 Correct 5 ms 408 KB Output is correct
34 Correct 5 ms 344 KB Output is correct
35 Correct 6 ms 344 KB Output is correct
36 Correct 5 ms 344 KB Output is correct
37 Correct 5 ms 344 KB Output is correct
38 Correct 8 ms 344 KB Output is correct
39 Correct 5 ms 344 KB Output is correct
40 Correct 9 ms 344 KB Output is correct
41 Correct 5 ms 344 KB Output is correct
42 Correct 7 ms 600 KB Output is correct
43 Correct 7 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 7 ms 344 KB Output is correct
47 Correct 5 ms 344 KB Output is correct
48 Correct 7 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 9 ms 344 KB Output is correct
52 Correct 9 ms 344 KB Output is correct
53 Correct 4 ms 344 KB Output is correct
54 Correct 7 ms 344 KB Output is correct
55 Correct 8 ms 344 KB Output is correct
56 Correct 5 ms 344 KB Output is correct
57 Correct 6 ms 344 KB Output is correct
58 Correct 7 ms 344 KB Output is correct
59 Correct 6 ms 344 KB Output is correct
60 Correct 5 ms 344 KB Output is correct
61 Correct 5 ms 436 KB Output is correct
62 Correct 8 ms 344 KB Output is correct
63 Correct 7 ms 436 KB Output is correct
64 Correct 6 ms 344 KB Output is correct

Subtask #4
60.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 3 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 7 ms 344 KB Output is correct
5 Correct 5 ms 344 KB Output is correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 6 ms 344 KB Output is correct
8 Correct 4 ms 344 KB Output is correct
9 Correct 5 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 5 ms 344 KB Output is correct
13 Correct 5 ms 344 KB Output is correct
14 Correct 11 ms 344 KB Output is correct
15 Correct 13 ms 344 KB Output is correct
16 Correct 6 ms 344 KB Output is correct
17 Correct 6 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 9 ms 344 KB Output is correct
22 Correct 6 ms 344 KB Output is correct
23 Correct 7 ms 344 KB Output is correct
24 Correct 7 ms 344 KB Output is correct
25 Correct 10 ms 344 KB Output is correct
26 Correct 5 ms 344 KB Output is correct
27 Correct 6 ms 344 KB Output is correct
28 Correct 7 ms 344 KB Output is correct
29 Correct 5 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 11 ms 344 KB Output is correct
33 Correct 9 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 8 ms 344 KB Output is correct
38 Correct 6 ms 344 KB Output is correct
39 Correct 5 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 5 ms 344 KB Output is correct
45 Correct 6 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 6 ms 344 KB Output is correct
50 Correct 6 ms 344 KB Output is correct
51 Correct 7 ms 344 KB Output is correct
52 Correct 7 ms 344 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 6 ms 600 KB Output is correct
57 Correct 9 ms 344 KB Output is correct
58 Correct 6 ms 344 KB Output is correct
59 Correct 7 ms 344 KB Output is correct
60 Correct 7 ms 344 KB Output is correct
61 Correct 7 ms 344 KB Output is correct
62 Correct 5 ms 344 KB Output is correct
63 Correct 7 ms 440 KB Output is correct
64 Correct 8 ms 344 KB Output is correct
65 Correct 7 ms 344 KB Output is correct
66 Correct 8 ms 344 KB Output is correct
67 Correct 7 ms 344 KB Output is correct
68 Correct 8 ms 600 KB Output is correct
69 Correct 7 ms 344 KB Output is correct
70 Correct 7 ms 600 KB Output is correct
71 Correct 5 ms 436 KB Output is correct
72 Correct 6 ms 360 KB Output is correct
73 Correct 6 ms 344 KB Output is correct
74 Correct 7 ms 344 KB Output is correct
75 Correct 7 ms 344 KB Output is correct
76 Correct 7 ms 344 KB Output is correct
77 Correct 5 ms 344 KB Output is correct
78 Correct 7 ms 436 KB Output is correct
79 Correct 5 ms 344 KB Output is correct
80 Correct 7 ms 420 KB Output is correct
81 Correct 7 ms 344 KB Output is correct
82 Correct 7 ms 344 KB Output is correct