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Submission #841183

# Submission time Handle Problem Language Result Execution time Memory
841183 2023-09-01T10:36:27 Z NicolaAbusaad2014 Longest Trip (IOI23_longesttrip) C++17
70 / 100
 90 ms 440 KB 
#include "longesttrip.h"
#include <bits/stdc++.h>

using namespace std;

void split(vector<int>&v,int sz,vector<int>&a,vector<int>&b)
{
    for(int i=0;i<sz;i++){
        a.push_back(v[i]);
    }
    for(int i=sz;i<v.size();i++){
        b.push_back(v[i]);
    }
}

void BS(vector<int>A,vector<int>B,int&s,int&e)
{
    while(A.size()>1){
        vector<int>a,b;
        split(A,(A.size())/2,a,b);
        if(are_connected(a,B)){
            swap(A,a);
        }
        else{
            swap(A,b);
        }
    }
    while(B.size()>1){
        vector<int>a,b;
        split(B,(B.size())/2,a,b);
        if(are_connected(A,a)){
            swap(B,a);
        }
        else{
            swap(B,b);
        }
    }
    s=A[0];
    e=B[0];
}

std::vector<int> longest_trip(int N, int D)
{
    vector<int>path(1);
    vector<bool>vis(N);
    vis[0]=true;
    while(path.size()<N){
        int a=path.front();
        int b=path.back();
        int c,d;
        vector<int>rest;
        for(int i=0;i<N;i++){
            if(!vis[i]){
                rest.push_back(i);
            }
        }
        if(are_connected(vector<int>(1,a),rest)){
            BS(vector<int>(1,a),rest,c,d);
            path.insert(path.begin(),d);
            vis[d]=true;
            continue;
        }
        if(are_connected(vector<int>(1,b),rest)){
            BS(vector<int>(1,b),rest,c,d);
            path.push_back(d);
            vis[d]=true;
            continue;
        }
        if(!are_connected(path,rest)){
            if(path.size()>=rest.size()){
                return path;
            }
            return rest;
        }
        BS(path,rest,c,d);
        for(int i=0;i<path.size();i++){
            if(path[i]==c){
                c=i;
                break;
            }
        }
        for(int i=0;i<rest.size();i++){
            if(rest[i]==d){
                d=i;
                break;
            }
        }
        vector<int>ans;
        for(int i=c+1;i<path.size();i++){
            ans.push_back(path[i]);
        }
        for(int i=0;i<=c;i++){
            ans.push_back(path[i]);
        }
        for(int i=d;i<rest.size();i++){
            ans.push_back(rest[i]);
        }
        for(int i=0;i<d;i++){
            ans.push_back(rest[i]);
        }
        return ans;
    }
    return path;
}

Compilation message

longesttrip.cpp: In function 'void split(std::vector<int>&, int, std::vector<int>&, std::vector<int>&)':
longesttrip.cpp:11:19: 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=sz;i<v.size();i++){
      |                  ~^~~~~~~~~
longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:47:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   47 |     while(path.size()<N){
      |           ~~~~~~~~~~~^~
longesttrip.cpp:76:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |         for(int i=0;i<path.size();i++){
      |                     ~^~~~~~~~~~~~
longesttrip.cpp:82:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   82 |         for(int i=0;i<rest.size();i++){
      |                     ~^~~~~~~~~~~~
longesttrip.cpp:89:24: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   89 |         for(int i=c+1;i<path.size();i++){
      |                       ~^~~~~~~~~~~~
longesttrip.cpp:95:22: 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=d;i<rest.size();i++){
      |                     ~^~~~~~~~~~~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 208 KB Output is correct
2 Correct 18 ms 208 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 208 KB Output is correct
2 Correct 18 ms 208 KB Output is correct
3 Correct 46 ms 208 KB Output is correct
4 Correct 68 ms 312 KB Output is correct
5 Correct 85 ms 336 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 208 KB Output is correct
2 Correct 23 ms 208 KB Output is correct
3 Correct 42 ms 296 KB Output is correct
4 Correct 38 ms 304 KB Output is correct
5 Correct 81 ms 324 KB Output is correct
6 Correct 10 ms 208 KB Output is correct
7 Correct 19 ms 208 KB Output is correct
8 Correct 50 ms 208 KB Output is correct
9 Correct 65 ms 208 KB Output is correct
10 Correct 86 ms 336 KB Output is correct
11 Correct 74 ms 208 KB Output is correct
12 Correct 58 ms 312 KB Output is correct
13 Correct 80 ms 320 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 208 KB Output is correct
2 Correct 23 ms 208 KB Output is correct
3 Correct 49 ms 208 KB Output is correct
4 Correct 52 ms 312 KB Output is correct
5 Correct 88 ms 208 KB Output is correct
6 Correct 15 ms 208 KB Output is correct
7 Correct 23 ms 208 KB Output is correct
8 Correct 48 ms 208 KB Output is correct
9 Correct 46 ms 304 KB Output is correct
10 Correct 66 ms 208 KB Output is correct
11 Correct 77 ms 312 KB Output is correct
12 Correct 71 ms 208 KB Output is correct
13 Correct 72 ms 208 KB Output is correct
14 Correct 12 ms 208 KB Output is correct
15 Correct 8 ms 208 KB Output is correct
16 Correct 32 ms 208 KB Output is correct
17 Correct 33 ms 208 KB Output is correct
18 Correct 44 ms 300 KB Output is correct
19 Correct 55 ms 208 KB Output is correct
20 Correct 59 ms 208 KB Output is correct
21 Correct 86 ms 320 KB Output is correct
22 Correct 69 ms 324 KB Output is correct
23 Correct 86 ms 316 KB Output is correct
24 Correct 90 ms 312 KB Output is correct
25 Correct 10 ms 208 KB Output is correct
26 Correct 14 ms 208 KB Output is correct
27 Correct 18 ms 208 KB Output is correct
28 Correct 23 ms 208 KB Output is correct
29 Correct 19 ms 208 KB Output is correct
30 Correct 39 ms 208 KB Output is correct
31 Correct 34 ms 208 KB Output is correct
32 Correct 25 ms 208 KB Output is correct
33 Correct 42 ms 208 KB Output is correct
34 Correct 53 ms 208 KB Output is correct
35 Correct 43 ms 208 KB Output is correct
36 Correct 87 ms 208 KB Output is correct
37 Correct 84 ms 320 KB Output is correct
38 Correct 81 ms 208 KB Output is correct
39 Correct 70 ms 324 KB Output is correct
40 Correct 59 ms 208 KB Output is correct
41 Correct 42 ms 336 KB Output is correct
42 Correct 41 ms 312 KB Output is correct
43 Correct 52 ms 336 KB Output is correct
44 Correct 48 ms 376 KB Output is correct
45 Correct 9 ms 208 KB Output is correct
46 Correct 12 ms 208 KB Output is correct
47 Correct 22 ms 208 KB Output is correct
48 Correct 29 ms 208 KB Output is correct
49 Correct 26 ms 208 KB Output is correct
50 Correct 48 ms 208 KB Output is correct
51 Correct 34 ms 208 KB Output is correct
52 Correct 40 ms 208 KB Output is correct
53 Correct 48 ms 208 KB Output is correct
54 Correct 47 ms 308 KB Output is correct
55 Correct 43 ms 208 KB Output is correct
56 Correct 75 ms 316 KB Output is correct
57 Correct 83 ms 320 KB Output is correct
58 Correct 69 ms 316 KB Output is correct
59 Correct 59 ms 320 KB Output is correct
60 Correct 72 ms 316 KB Output is correct
61 Correct 48 ms 208 KB Output is correct
62 Correct 78 ms 316 KB Output is correct
63 Correct 60 ms 208 KB Output is correct
64 Correct 54 ms 316 KB Output is correct

Subtask #4
30.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 208 KB Output is correct
2 Correct 23 ms 208 KB Output is correct
3 Correct 40 ms 208 KB Output is correct
4 Partially correct 53 ms 208 KB Output is partially correct
5 Partially correct 71 ms 316 KB Output is partially correct
6 Correct 14 ms 208 KB Output is correct
7 Correct 21 ms 208 KB Output is correct
8 Correct 26 ms 208 KB Output is correct
9 Partially correct 55 ms 208 KB Output is partially correct
10 Partially correct 86 ms 308 KB Output is partially correct
11 Partially correct 73 ms 304 KB Output is partially correct
12 Partially correct 66 ms 208 KB Output is partially correct
13 Partially correct 71 ms 208 KB Output is partially 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 34 ms 208 KB Output is correct
18 Correct 38 ms 256 KB Output is correct
19 Partially correct 49 ms 208 KB Output is partially correct
20 Partially correct 57 ms 208 KB Output is partially correct
21 Correct 16 ms 208 KB Output is correct
22 Correct 16 ms 208 KB Output is correct
23 Correct 20 ms 208 KB Output is correct
24 Correct 16 ms 208 KB Output is correct
25 Correct 17 ms 208 KB Output is correct
26 Correct 49 ms 208 KB Output is correct
27 Correct 23 ms 296 KB Output is correct
28 Correct 26 ms 208 KB Output is correct
29 Partially correct 36 ms 308 KB Output is partially correct
30 Partially correct 43 ms 208 KB Output is partially correct
31 Partially correct 47 ms 208 KB Output is partially correct
32 Correct 12 ms 208 KB Output is correct
33 Correct 17 ms 208 KB Output is correct
34 Correct 29 ms 208 KB Output is correct
35 Correct 27 ms 208 KB Output is correct
36 Correct 13 ms 208 KB Output is correct
37 Correct 47 ms 208 KB Output is correct
38 Correct 34 ms 208 KB Output is correct
39 Correct 42 ms 208 KB Output is correct
40 Partially correct 48 ms 208 KB Output is partially correct
41 Partially correct 51 ms 208 KB Output is partially correct
42 Partially correct 50 ms 208 KB Output is partially correct
43 Partially correct 63 ms 436 KB Output is partially correct
44 Partially correct 79 ms 308 KB Output is partially correct
45 Partially correct 72 ms 208 KB Output is partially correct
46 Partially correct 68 ms 208 KB Output is partially correct
47 Partially correct 53 ms 320 KB Output is partially correct
48 Partially correct 74 ms 208 KB Output is partially correct
49 Partially correct 62 ms 328 KB Output is partially correct
50 Partially correct 50 ms 308 KB Output is partially correct
51 Partially correct 53 ms 208 KB Output is partially correct
52 Partially correct 52 ms 328 KB Output is partially correct
53 Partially correct 46 ms 208 KB Output is partially correct
54 Partially correct 58 ms 328 KB Output is partially correct
55 Partially correct 39 ms 208 KB Output is partially correct
56 Partially correct 84 ms 208 KB Output is partially correct
57 Partially correct 56 ms 336 KB Output is partially correct
58 Partially correct 56 ms 324 KB Output is partially correct
59 Partially correct 40 ms 308 KB Output is partially correct
60 Partially correct 53 ms 308 KB Output is partially correct
61 Partially correct 53 ms 208 KB Output is partially correct
62 Partially correct 69 ms 328 KB Output is partially correct
63 Partially correct 62 ms 324 KB Output is partially correct
64 Partially correct 60 ms 312 KB Output is partially correct
65 Partially correct 77 ms 320 KB Output is partially correct
66 Partially correct 47 ms 440 KB Output is partially correct
67 Partially correct 56 ms 340 KB Output is partially correct
68 Partially correct 85 ms 436 KB Output is partially correct
69 Partially correct 62 ms 312 KB Output is partially correct
70 Partially correct 62 ms 332 KB Output is partially correct
71 Partially correct 71 ms 316 KB Output is partially correct
72 Partially correct 65 ms 316 KB Output is partially correct
73 Partially correct 55 ms 324 KB Output is partially correct
74 Partially correct 50 ms 208 KB Output is partially correct
75 Partially correct 60 ms 312 KB Output is partially correct
76 Partially correct 37 ms 356 KB Output is partially correct
77 Partially correct 72 ms 208 KB Output is partially correct
78 Partially correct 43 ms 336 KB Output is partially correct
79 Partially correct 69 ms 312 KB Output is partially correct
80 Partially correct 64 ms 336 KB Output is partially correct
81 Partially correct 67 ms 316 KB Output is partially correct
82 Partially correct 66 ms 316 KB Output is partially correct