Submission #1007048

#	Time	Username	Problem	Language	Result	Execution time	Memory
1007048		3as8	Longest Trip (IOI23_longesttrip)	C++17	15 / 100	865 ms	592 KiB

longesttrip

#include "longesttrip.h"

#include<bits/stdc++.h>

#define ll long long
using namespace std;

bool con[300][300];
bool vis[300];

ll n;
ll l = 0;
void dfs(ll startIndex, vector<int>& curr) {


    vis[startIndex] = true;
    curr.push_back(startIndex);

    bool in = false;
    for(int i = 0; i < n; i++) {
        if(con[startIndex][i] && !vis[i]) {
            dfs(i, curr);
            in = true;
        }
    }

    if(!in) l = startIndex;
}


std::vector<int> longest_trip(int N, int D) {

    n = N;
    for(int i = 0; i < n; i++) {
        for(int j = i + 1; j < n; j++) {

            con[i][j] = con[j][i] = are_connected({i}, {j});
        }
    }

    vector<ll> ans;
    ll mx = LLONG_MIN;
    for(int j = 0; j < n; j++) vis[j] = false;
    vector<int> curr;

    dfs(0, curr);

    for(int j = 0; j < n; j++) vis[j] = false;
    vector<int> curr2;

    dfs(l, curr2);

    return curr2;
}

Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:42:8: warning: unused variable 'mx' [-Wunused-variable]
   42 |     ll mx = LLONG_MIN;
      |        ^~

• Subtask 0: 0 / 0
• Subtask 1: 5 / 5
• Subtask 2: 10 / 10
• Subtask 3: 0 / 25
• Subtask 4: 0 / 60