Submission #1091201

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091201		Rafat	Vlak (COCI20_vlak)	C++17	30 / 70	18 ms	29532 KiB

Main

#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
#include <time.h>
#include <cstdlib>
#include <ctime>
#include <cstdio>
#include <cstring>

using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <iostream>

using namespace __gnu_pbds;
using namespace std;
template <class T>
using Tree =
    tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
// to erase in multiset-> less_equal<T> and 
// s.erase(s.find_by_order(s.order_of_key(x)))
// lower_bound(x)=>(cannot use the stl lower_bound function)
// ll idx = s.order_of_key(x)
// if(idx == s.size()) -> no lower_bound
// else lb = *s.find_by_order(idx) // as 0-indexing
// idx-1 will give highest value which is strictly less than x
// for upper_bound->do the same with (x+1)

typedef long long ll;
typedef long double ld;
typedef pair<int,int> p32;
typedef pair<ll,ll> p64;
typedef tuple<ll, ll, ll> t64;
typedef vector<t64> vt64;
typedef vector<vt64> vvt64;
typedef pair<double,double> pdd;
typedef vector<ll> v64;
typedef vector<int> v32;
typedef vector<vector<int> > vv32;
typedef vector<vector<ll> > vv64;
typedef vector<vector<p64> > vvp64;
typedef vector<p64> vp64;
typedef vector<p32> vp32;
typedef vector<vector<p32> > vvp32;
typedef vector<bool> vb;
ll mod =  1e9+7, MOD = 998244353;
double eps = 1e-12;
// #define forn(i,e) for(ll i = 0; i < e; i++)
#define FOR(s, e, i) for(int i = s; i <= e; i++)
// #define rforn(i,s) for(ll i = s; i >= 0; i--)
#define ROF(s ,e, i) for(int i = s; i >= e; i--)
#define coutAll(A) for(auto asdafas : A) cout <<  asdafas << " "; cout << "\n";
#define foutAll(A) for(auto asdafas : A) fout <<  asdafas << " "; cout << "\n";
#define cinAll(A) for(auto &asdafas : A) cin >>  asdafas;
#define finAll(A) for(auto &asdafas : A) fin >>  asdafas;
#define minpq priority_queue<ll, v64, greater<ll>>
#define maxpq priority_queue<ll> 
#define ln "\n"
#define dbg(x) cout<<#x<<" = "<<x<<ln
#define mp make_pair
#define mt make_tuple
#define pb push_back
#define fi first
#define se second
ll inf = LLONG_MAX;
#define fast_cin() ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define all(x) (x).begin(), (x).end()
#define rall(x) (x).rbegin(), (x).rend()
#define sz(x) ((ll)(x).size())
#define yes cout<<"YES\n"
#define no cout<<"NO\n"
using namespace std;
typedef long long ll;
typedef vector<ll> vll;
typedef vector<vector<ll>> vvll;
typedef pair<ll, ll> pll;
typedef pair<ll, ll> pii;
// #define MAXN 1000001

const int MAXN = 1e6+1;
int Trie[MAXN][26];
int node_count;
bool stop[MAXN], win[MAXN];
vv32 adj(MAXN);
// 0->root
void insert(string s){
    int node = 0;
    int n = s.size();
    for(auto x : s){
        if(Trie[node][(int)(x-'a')] == 0){Trie[node][(int)(x-'a')] = ++node_count;}
        // adj[node].pb(Trie[node][(int)(x-'a')]);
        node = Trie[node][(int)(x-'a')];
    }
    stop[node] = true;
}
bool insert2(string s){
    int node = 0;
    int cnt = 0;
    int n = s.size();
    for(auto x : s){
        if(cnt % 2 == 0){
            // 1st person's turn
            if(Trie[node][(int)(x-'a')] == 0){
                return true;
            }            
        }

        else{
            // 2nd person's turn
            FOR(0, 25, j){
                if(j == (int)(x-'a')) continue; 
                if(Trie[node][j]) return false;
            }
            if(Trie[node][(int)(x-'a')] == 0) return true;
        }
        
        ++cnt;
        node = Trie[node][(int)(x-'a')];
    }
    if(cnt % 2 == 0){
        // 1st player's turn
        return false;
    }
    if(node == 0){
        return true;
    }
    // 2nd player's turn
    FOR(0, 25, j){
        if(Trie[node][j]) return false;
    }
    return true;
    
}
// bool dfs(int u, int d = 0){
//     if(win[u]) return false;
//     if(adj[u].size() == 0) return !win[u];
//     for(auto v : adj[u]){
//         if(d%2 == 0)
//             if(dfs(v, d + 1)) return true;
//         else 
//             if(!dfs(v, d + 1)) return true;
//     }
//     return d%2 == 0;
// }

void solve(int it)
{
    int n, m;
    cin >> n;
    vector<string>A(n);
    cinAll(A);
    // FOR(0, n -1, i){
    //     string s;
    //     cin >> s;
    //     insert(s);
    // }
    
    cin >> m;
    FOR(0, m -1, i){
        string s;
        cin >> s;
        insert(s);
    }
    // FOR(0, node_count, i) {coutAll(adj[i]);}
    // FOR(0, node_count, i) cout << win[i] << " "; cout << "\n";

    // cout << (dfs(0) ? "Nina" : "Emilija");
    for(auto x : A){
        if(insert2(x)){
            cout << "Nina";
            return;
        }
    }
    cout << "Emilija";
    
}


int main()
{
    fast_cin();    
    ll t = 1;
    // cin >> t;
    for(int it=1; it<=t; it++)
    {
        //cout << "Case " << it << ": ";
        solve(it);
    }
    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void insert(std::string)':
Main.cpp:88:9: warning: unused variable 'n' [-Wunused-variable]
   88 |     int n = s.size();
      |         ^
Main.cpp: In function 'bool insert2(std::string)':
Main.cpp:99:9: warning: unused variable 'n' [-Wunused-variable]
   99 |     int n = s.size();
      |         ^

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 10 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 10 / 10
• Subtask 7: 0 / 10