Submission #1059655

#	Time	Username	Problem	Language	Result	Execution time	Memory
1059655		tolbi	Longest Trip (IOI23_longesttrip)	C++17	15 / 100	176 ms	504 KiB

longesttrip

#include "longesttrip.h"
#include <bits/stdc++.h>
using namespace std;
//bool are_connected(std::vector<int> A, std::vector<int> B);
bool sor(int x, int y){
    std::vector<int> ilk;
    std::vector<int> iki;
    ilk.push_back(x);
    iki.push_back(y);
    return are_connected(ilk,iki);
}
std::vector<int> longest_trip(int N, int D)
{
    std::vector<int> ans;
    ans.push_back(0);
    std::vector<bool> vis(N,false);
    vis[0]=true;
    while (ans.size()<N-1){
        for (int i = 0; i < N; i++){
            if (vis[i]) continue;
            if (sor(ans.back(),i)){
                ans.push_back(i);
                vis[i]=true;
                break;
            }
        }
    }
    int kalan = -1;
    for (int i = 0; i < N; i++){
        if (!vis[i]){
            kalan=i;
            break;
        }
    }
    if (kalan==-1) return ans;
    else {
        if (sor(ans[0],kalan)){
            reverse(ans.begin(), ans.end());
            ans.push_back(kalan);
            reverse(ans.begin(), ans.end());
        }
        else {
            ans.push_back(kalan);
        }
    }
    return ans;
}

Compilation message (stderr)

longesttrip.cpp: In function 'std::vector<int> longest_trip(int, int)':
longesttrip.cpp:18:22: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare]
   18 |     while (ans.size()<N-1){
      |            ~~~~~~~~~~^~~~

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