Submission #1078459

#	Time	Username	Problem	Language	Result	Execution time	Memory
1078459		vjudge1	Longest Trip (IOI23_longesttrip)	C++17	15 / 100	9 ms	600 KiB

longesttrip

#include "longesttrip.h"
#include <bits/stdc++.h>
#define fastio ios_base::sync_with_stdio(0);    cin.tie(0);
#define vi vector<int>
#define ll long long
#define ff first
#define ss second
using namespace std;
const int MAX=3e3+5;

vector<int> longest_trip(int n,int d){
    vector<int>a;
    a.push_back(0);
    vector<int>b;
    b.push_back(1);
    int x=0;
    int y=0;
    deque<int>ans;
    if(are_connected(a,b)){
        x=0;
        y=1;
        ans.push_back(0);
        ans.push_back(1);
    }
    else{
        x=0;
        y=1;
        ans.push_back(0);
        ans.push_back(2);
        ans.push_back(1);
    }
    for(int i=2;i<n;i++){
        if(ans.size()==3 and i==2)   continue;
        a.pop_back();   b.pop_back();
        a.push_back(y); b.push_back(i); 
        if(are_connected(a,b)){
            y=i;
            ans.push_back(i);
        }
        else{
            ans.push_front(i);
        }
    }
    vector<int>v;
    for(auto it:ans){
        v.push_back(it);
    }
    return v;
}

Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:16:9: warning: variable 'x' set but not used [-Wunused-but-set-variable]
   16 |     int x=0;
      |         ^

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