Submission #472575

#	Time	Username	Problem	Language	Result	Execution time	Memory
472575		ShahdMohamed	Railway (BOI17_railway)	C++17	0 / 100	68 ms	5996 KiB

railway

///LW M4 ACC HAZ3L GAMED
///YARAB WALA...I MEAN YARAB ACC
#include<bits/stdc++.h>
#define ll long long
#define endl "\n"
const ll mod = (ll) 1e9 + 7;
const ll oo = (ll) 1e18;
using namespace std;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);

    ll n,m,k;
    cin>>n>>m>>k;
    n--;
    while (n--){
        ll a,b;
        cin>>a>>b;
    }
    vector<ll>ans;
    map<ll,ll>mp;
    while (m--){
           cin>>n;
        while (n--){
            ll x;
            cin>>x;
            mp[x]++;
        }
    }
    for (auto i:mp){
        if (i.second>=k)
            ans.push_back(i.first);
    }
    sort(ans.begin(),ans.end());
    cout<<ans.size()<<endl;
    for (auto i:ans)
        cout<<i<<" ";
    cout<<endl;

    return 0;
}

• Subtask 1: 0 / 8
• Subtask 2: 0 / 15
• Subtask 3: 0 / 7
• Subtask 4: 0 / 29
• Subtask 5: 0 / 16
• Subtask 6: 0 / 25