Submission

Score: 100

User: kimza

Problemset: จุดแวะพัก

Language: cpp

Time: 0.006 second

Submitted On: 2026-03-05 11:44:01

#include <bits/stdc++.h>
using namespace std;
int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    int n;
    string k;
    cin >> n >> k;
    vector<pair<int,string>> v;
    for(int i=0;i<=n;i++){
        string s;
        getline(cin,s);
        stringstream ss(s);
        int cnt = -1;
        bool isk = false;
        bool isf = true; //isfirst
        string name;
        while(ss>>s){
            if(isf){
                name = s;
                isf = false;
            }
            if(s==k){
                //cout << name << " " << cnt << "\n";
                v.push_back({cnt,name});
                isk = true;
            }
            cnt++;
        }
        if(!isk){
            cnt=-1;
        }
    }
    sort(v.begin(),v.end());    
    if(v.size()==0){
        cout << "-1";
    }
    else if(v.size()<=3 && v.size()>0){
        for(int i=0;i<v.size();i++){
            cout << v[i].second << " ";
        }
    }
    else if (v.size()>3) {
        for(int i=0;i<3;i++){
            cout << v[i].second << " ";
        }
    }
    
    
}