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Submission #1030065

# Submission time Handle Problem Language Result Execution time Memory
1030065 2024-07-21T18:59:17 Z mindiyak Longest Trip (IOI23_longesttrip) C++17
40 / 100
 870 ms 1796 KB 
#include "longesttrip.h"
#pragma GCC optimize("O1,O2,O3,Ofast,unroll-loops")
#include <bits/stdc++.h>
#include <string>
#include <iostream>
#include <cmath>
#include <numeric>
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<int, int> pi;
typedef pair<int, int> pl;
typedef pair<ld, ld> pd;
typedef vector<int> vi;
typedef vector<bool> vb;
typedef vector<vector<int>> vvi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
#define FOR(i, a, b) for (int i = a; i < (b); i++)
#define F0R(i, a) for (int i = 0; i < (a); i++)
#define FORd(i, a, b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i, a) for (int i = (a)-1; i >= 0; i--)
#define trav(a, x) for (auto &a : x)
#define uid(a, b) uniform_int_distribution<int>(a, b)(rng)
#define len(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define F first
#define nl endl
#define S second
#define lb lower_bound
#define ub upper_bound
#define aint(x) x.begin(), x.end()
#define raint(x) x.rbegin(), x.rend()
#define ins insert
const int MOD = 1000000007;

vvi paths;
vi visited;
vi cur_path;
int node,dis;

void dfs(int pos,int height,vi cur){
    if(visited[pos])return;
    cur.pb(pos);
    visited[pos] = 1;
    if(dis < height){
        dis = height;
        node = pos;
        cur_path = cur;
    }
    for(int a:paths[pos]){
        dfs(a,height+1,cur);
    }
}

vi longest_trip(int N, int D)
{
    paths = vvi(N);
    FOR(i,0,N){
        FOR(j,i+1,N){
            if(are_connected({i},{j})){
                paths[i].pb(j);
                paths[j].pb(i);
            }
        }
    }

    visited = vi(N,0);
    vi possibles;

    FOR(i,0,N){
        if(visited[i])continue;
        node = -1;
        dis = -1;
        vi cur;
        dfs(i,1,cur);
        if(node != -1)possibles.pb(node);
    }

    visited = vi(N,0);
    int temp = -1;
    vi ans;

    for(int i:possibles){
        node = -1;
        dis = -1;
        vi cur;
        dfs(i,1,cur);
        if(temp < dis){
            temp = dis;
            ans = cur_path;
        }
    }

    return ans;
}

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 187 ms 1128 KB Output is correct

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 344 KB Output is correct
2 Correct 24 ms 344 KB Output is correct
3 Correct 162 ms 592 KB Output is correct
4 Correct 434 ms 832 KB Output is correct
5 Correct 804 ms 1576 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 23 ms 344 KB Output is correct
3 Correct 147 ms 444 KB Output is correct
4 Correct 404 ms 744 KB Output is correct
5 Correct 791 ms 1308 KB Output is correct
6 Correct 8 ms 340 KB Output is correct
7 Correct 28 ms 344 KB Output is correct
8 Correct 161 ms 344 KB Output is correct
9 Correct 298 ms 804 KB Output is correct
10 Correct 870 ms 1320 KB Output is correct
11 Correct 835 ms 1040 KB Output is correct
12 Correct 862 ms 1292 KB Output is correct
13 Correct 778 ms 1296 KB Output is correct

Subtask #3
25.0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 344 KB Output is correct
2 Correct 29 ms 344 KB Output is correct
3 Correct 145 ms 464 KB Output is correct
4 Correct 399 ms 860 KB Output is correct
5 Correct 763 ms 1296 KB Output is correct
6 Correct 8 ms 344 KB Output is correct
7 Correct 22 ms 344 KB Output is correct
8 Correct 140 ms 592 KB Output is correct
9 Correct 252 ms 868 KB Output is correct
10 Correct 738 ms 1068 KB Output is correct
11 Correct 753 ms 1140 KB Output is correct
12 Correct 718 ms 1076 KB Output is correct
13 Correct 677 ms 1288 KB Output is correct
14 Correct 5 ms 344 KB Output is correct
15 Correct 10 ms 344 KB Output is correct
16 Correct 30 ms 344 KB Output is correct
17 Correct 76 ms 344 KB Output is correct
18 Correct 135 ms 592 KB Output is correct
19 Correct 245 ms 980 KB Output is correct
20 Correct 259 ms 788 KB Output is correct
21 Correct 741 ms 1252 KB Output is correct
22 Correct 667 ms 1244 KB Output is correct
23 Correct 737 ms 1212 KB Output is correct
24 Correct 708 ms 1224 KB Output is correct
25 Correct 8 ms 344 KB Output is correct
26 Correct 6 ms 344 KB Output is correct
27 Correct 25 ms 344 KB Output is correct
28 Correct 15 ms 344 KB Output is correct
29 Correct 18 ms 344 KB Output is correct
30 Correct 170 ms 468 KB Output is correct
31 Correct 164 ms 596 KB Output is correct
32 Correct 178 ms 608 KB Output is correct
33 Correct 276 ms 1112 KB Output is correct
34 Correct 288 ms 344 KB Output is correct
35 Correct 317 ms 848 KB Output is correct
36 Correct 766 ms 1212 KB Output is correct
37 Correct 785 ms 1132 KB Output is correct
38 Correct 720 ms 908 KB Output is correct
39 Correct 710 ms 1080 KB Output is correct
40 Correct 781 ms 968 KB Output is correct
41 Correct 848 ms 1168 KB Output is correct
42 Correct 769 ms 864 KB Output is correct
43 Correct 783 ms 1104 KB Output is correct
44 Correct 707 ms 1796 KB Output is correct
45 Correct 6 ms 344 KB Output is correct
46 Correct 9 ms 344 KB Output is correct
47 Correct 22 ms 344 KB Output is correct
48 Correct 16 ms 344 KB Output is correct
49 Correct 23 ms 344 KB Output is correct
50 Correct 172 ms 692 KB Output is correct
51 Correct 192 ms 600 KB Output is correct
52 Correct 217 ms 600 KB Output is correct
53 Correct 310 ms 624 KB Output is correct
54 Correct 295 ms 720 KB Output is correct
55 Correct 338 ms 592 KB Output is correct
56 Correct 834 ms 1108 KB Output is correct
57 Correct 830 ms 1028 KB Output is correct
58 Correct 797 ms 984 KB Output is correct
59 Correct 840 ms 1112 KB Output is correct
60 Correct 805 ms 1104 KB Output is correct
61 Correct 751 ms 1200 KB Output is correct
62 Correct 775 ms 976 KB Output is correct
63 Correct 706 ms 1320 KB Output is correct
64 Correct 736 ms 1096 KB Output is correct

Subtask #4
0.0 / 60.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 344 KB Output is correct
2 Correct 15 ms 344 KB Output is correct
3 Partially correct 117 ms 344 KB Output is partially correct
4 Partially correct 349 ms 484 KB Output is partially correct
5 Partially correct 726 ms 1108 KB Output is partially correct
6 Correct 6 ms 344 KB Output is correct
7 Correct 18 ms 344 KB Output is correct
8 Partially correct 142 ms 344 KB Output is partially correct
9 Partially correct 303 ms 344 KB Output is partially correct
10 Partially correct 812 ms 1228 KB Output is partially correct
11 Partially correct 820 ms 1332 KB Output is partially correct
12 Partially correct 785 ms 1076 KB Output is partially correct
13 Partially correct 761 ms 1068 KB Output is partially correct
14 Correct 13 ms 344 KB Output is correct
15 Correct 15 ms 344 KB Output is correct
16 Incorrect 1 ms 344 KB Incorrect
17 Halted 0 ms 0 KB -