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Submission #1065155

# Submission time Handle Problem Language Result Execution time Memory
1065155 2024-08-19T01:31:46 Z vjudge1 Longest Trip (IOI23_longesttrip) C++17
60 / 100
 886 ms 1520 KB 
#include "longesttrip.h"
#include<bits/stdc++.h>
using namespace std;
vector<int>adj[256];
bitset<256>vis;
void dfs(int n){
    if(vis[n])return;
    vis[n]=1;
    for(auto i:adj[n])
        dfs(i);
}
vector<int>path;
void dfs2(int n){
    path.push_back(n);
    vis[n]=1;
    for(auto i:adj[n])
        if(!vis[i])
            return dfs2(i);
}
mt19937 rng(1272842334);
vector<int> longest_trip(int N, int D){
    for(int i=0;i<N;i++)
        adj[i].clear();
    for(int i=1;i<N;i++) for(int j=i;j--;)
        if(are_connected({i},{j}))
            adj[i].push_back(j),
            adj[j].push_back(i);
    vis.reset();
    dfs(0);
    if(vis.count()!=N){
        vector<int>a,b;
        for(int i=0;i<N;i++)
            if(!vis[i])
                a.push_back(i);
            else b.push_back(i);
        return a.size()>b.size()?a:b;
    }
    vis.reset();
    path.clear();
    int nod=rng()%N;
    dfs2(nod);
    if(path.size()==N)
        return path;
    while(1) {
        for(auto x:adj[path[0]])
            if(!vis[x]) {
                vector<int>v2;
                vis[x]=1;
                for(int i=0;i<N;i++)
                    if(!vis[i])v2.push_back(i);
                v2.push_back(x);
                for(auto i:path)
                    v2.push_back(i);
                return v2;
            }
        int x=path[0];
        path.erase(path.begin());
        path.push_back(x);
    }
}

Compilation message

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:30:19: warning: comparison of integer expressions of different signedness: 'std::size_t' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   30 |     if(vis.count()!=N){
      |        ~~~~~~~~~~~^~~
longesttrip.cpp:42:19: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   42 |     if(path.size()==N)
      |        ~~~~~~~~~~~^~~

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 596 KB Output is correct
2 Correct 192 ms 948 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 25 ms 344 KB Output is correct
3 Correct 144 ms 596 KB Output is correct
4 Correct 407 ms 484 KB Output is correct
5 Correct 853 ms 1176 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 344 KB Output is correct
2 Correct 27 ms 344 KB Output is correct
3 Correct 149 ms 344 KB Output is correct
4 Correct 402 ms 592 KB Output is correct
5 Correct 824 ms 828 KB Output is correct
6 Correct 6 ms 340 KB Output is correct
7 Correct 28 ms 344 KB Output is correct
8 Correct 164 ms 344 KB Output is correct
9 Correct 281 ms 596 KB Output is correct
10 Correct 816 ms 940 KB Output is correct
11 Correct 862 ms 1140 KB Output is correct
12 Correct 799 ms 1172 KB Output is correct
13 Correct 827 ms 720 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 22 ms 344 KB Output is correct
3 Correct 138 ms 344 KB Output is correct
4 Correct 375 ms 600 KB Output is correct
5 Correct 813 ms 992 KB Output is correct
6 Correct 7 ms 344 KB Output is correct
7 Correct 24 ms 344 KB Output is correct
8 Correct 157 ms 344 KB Output is correct
9 Correct 299 ms 600 KB Output is correct
10 Correct 846 ms 1516 KB Output is correct
11 Correct 798 ms 1020 KB Output is correct
12 Correct 859 ms 868 KB Output is correct
13 Correct 842 ms 1108 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 13 ms 344 KB Output is correct
16 Correct 42 ms 344 KB Output is correct
17 Correct 87 ms 344 KB Output is correct
18 Correct 139 ms 460 KB Output is correct
19 Correct 281 ms 596 KB Output is correct
20 Correct 304 ms 952 KB Output is correct
21 Correct 873 ms 1144 KB Output is correct
22 Correct 847 ms 872 KB Output is correct
23 Correct 818 ms 964 KB Output is correct
24 Correct 825 ms 892 KB Output is correct
25 Correct 11 ms 344 KB Output is correct
26 Correct 8 ms 344 KB Output is correct
27 Correct 29 ms 344 KB Output is correct
28 Correct 24 ms 344 KB Output is correct
29 Correct 20 ms 344 KB Output is correct
30 Correct 190 ms 344 KB Output is correct
31 Correct 169 ms 344 KB Output is correct
32 Correct 222 ms 600 KB Output is correct
33 Correct 288 ms 344 KB Output is correct
34 Correct 317 ms 344 KB Output is correct
35 Correct 300 ms 712 KB Output is correct
36 Correct 785 ms 896 KB Output is correct
37 Correct 837 ms 1204 KB Output is correct
38 Correct 781 ms 948 KB Output is correct
39 Correct 818 ms 1052 KB Output is correct
40 Correct 839 ms 932 KB Output is correct
41 Correct 800 ms 1068 KB Output is correct
42 Correct 886 ms 848 KB Output is correct
43 Correct 797 ms 960 KB Output is correct
44 Correct 833 ms 904 KB Output is correct
45 Correct 6 ms 344 KB Output is correct
46 Correct 9 ms 344 KB Output is correct
47 Correct 32 ms 344 KB Output is correct
48 Correct 18 ms 344 KB Output is correct
49 Correct 18 ms 344 KB Output is correct
50 Correct 180 ms 344 KB Output is correct
51 Correct 213 ms 700 KB Output is correct
52 Correct 193 ms 344 KB Output is correct
53 Correct 291 ms 344 KB Output is correct
54 Correct 296 ms 344 KB Output is correct
55 Correct 286 ms 492 KB Output is correct
56 Correct 835 ms 744 KB Output is correct
57 Correct 802 ms 1076 KB Output is correct
58 Correct 830 ms 1192 KB Output is correct
59 Correct 849 ms 1264 KB Output is correct
60 Correct 845 ms 1208 KB Output is correct
61 Correct 801 ms 984 KB Output is correct
62 Correct 816 ms 1304 KB Output is correct
63 Correct 835 ms 852 KB Output is correct
64 Correct 839 ms 868 KB Output is correct

Subtask #4
19.999999998 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 23 ms 344 KB Output is correct
3 Partially correct 140 ms 600 KB Output is partially correct
4 Partially correct 407 ms 1000 KB Output is partially correct
5 Partially correct 804 ms 1072 KB Output is partially correct
6 Correct 8 ms 340 KB Output is correct
7 Correct 31 ms 344 KB Output is correct
8 Partially correct 146 ms 344 KB Output is partially correct
9 Partially correct 318 ms 848 KB Output is partially correct
10 Partially correct 804 ms 896 KB Output is partially correct
11 Partially correct 809 ms 704 KB Output is partially correct
12 Partially correct 840 ms 908 KB Output is partially correct
13 Partially correct 843 ms 892 KB Output is partially correct
14 Correct 9 ms 344 KB Output is correct
15 Correct 11 ms 344 KB Output is correct
16 Correct 41 ms 344 KB Output is correct
17 Partially correct 101 ms 452 KB Output is partially correct
18 Partially correct 145 ms 856 KB Output is partially correct
19 Partially correct 322 ms 712 KB Output is partially correct
20 Partially correct 301 ms 592 KB Output is partially correct
21 Correct 11 ms 344 KB Output is correct
22 Correct 9 ms 344 KB Output is correct
23 Correct 22 ms 344 KB Output is correct
24 Correct 27 ms 344 KB Output is correct
25 Correct 32 ms 344 KB Output is correct
26 Partially correct 192 ms 344 KB Output is partially correct
27 Partially correct 209 ms 456 KB Output is partially correct
28 Partially correct 199 ms 344 KB Output is partially correct
29 Partially correct 292 ms 1480 KB Output is partially correct
30 Partially correct 298 ms 444 KB Output is partially correct
31 Partially correct 301 ms 632 KB Output is partially correct
32 Correct 8 ms 344 KB Output is correct
33 Correct 9 ms 344 KB Output is correct
34 Correct 21 ms 344 KB Output is correct
35 Correct 32 ms 344 KB Output is correct
36 Correct 18 ms 344 KB Output is correct
37 Partially correct 184 ms 344 KB Output is partially correct
38 Partially correct 183 ms 344 KB Output is partially correct
39 Partially correct 166 ms 344 KB Output is partially correct
40 Partially correct 322 ms 848 KB Output is partially correct
41 Partially correct 302 ms 476 KB Output is partially correct
42 Partially correct 280 ms 468 KB Output is partially correct
43 Partially correct 829 ms 1104 KB Output is partially correct
44 Partially correct 869 ms 1124 KB Output is partially correct
45 Partially correct 834 ms 896 KB Output is partially correct
46 Partially correct 829 ms 1008 KB Output is partially correct
47 Partially correct 842 ms 1004 KB Output is partially correct
48 Partially correct 817 ms 1228 KB Output is partially correct
49 Partially correct 856 ms 1156 KB Output is partially correct
50 Partially correct 876 ms 1108 KB Output is partially correct
51 Partially correct 846 ms 1032 KB Output is partially correct
52 Partially correct 850 ms 724 KB Output is partially correct
53 Partially correct 817 ms 1040 KB Output is partially correct
54 Partially correct 809 ms 808 KB Output is partially correct
55 Partially correct 836 ms 1048 KB Output is partially correct
56 Partially correct 820 ms 1152 KB Output is partially correct
57 Partially correct 827 ms 1516 KB Output is partially correct
58 Partially correct 801 ms 1028 KB Output is partially correct
59 Partially correct 817 ms 1424 KB Output is partially correct
60 Partially correct 799 ms 860 KB Output is partially correct
61 Partially correct 821 ms 808 KB Output is partially correct
62 Partially correct 875 ms 700 KB Output is partially correct
63 Partially correct 845 ms 1088 KB Output is partially correct
64 Partially correct 859 ms 1520 KB Output is partially correct
65 Partially correct 835 ms 1340 KB Output is partially correct
66 Partially correct 827 ms 1056 KB Output is partially correct
67 Partially correct 827 ms 1036 KB Output is partially correct
68 Partially correct 806 ms 1288 KB Output is partially correct
69 Partially correct 882 ms 1164 KB Output is partially correct
70 Partially correct 878 ms 728 KB Output is partially correct
71 Partially correct 853 ms 1276 KB Output is partially correct
72 Partially correct 852 ms 1204 KB Output is partially correct
73 Partially correct 842 ms 1132 KB Output is partially correct
74 Partially correct 843 ms 1212 KB Output is partially correct
75 Partially correct 822 ms 556 KB Output is partially correct
76 Partially correct 861 ms 852 KB Output is partially correct
77 Partially correct 825 ms 1340 KB Output is partially correct
78 Partially correct 830 ms 1156 KB Output is partially correct
79 Partially correct 805 ms 1404 KB Output is partially correct
80 Partially correct 860 ms 1000 KB Output is partially correct
81 Partially correct 841 ms 816 KB Output is partially correct
82 Partially correct 724 ms 1000 KB Output is partially correct