Submission #1092716

#	Time	Username	Problem	Language	Result	Execution time	Memory
1092716		vjudge1	Vlak (COCI20_vlak)	C++17	70 / 70	23 ms	25088 KiB

Main

//    #pragma GCC optimize ("O3")
//    #pragma GCC optimize ("unroll-loops")
//    #pragma comment(linker, "/STACK:2000000")
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define int long long
#define ld long double
#define endl "\n"
#define FOCUS ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
void Go() {
    ios_base::sync_with_stdio(false), cin.tie(nullptr), cout.tie(nullptr);
#ifndef ONLINE_JUDGE
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif
}
ll node=1;
struct trienode
{
    trienode* child[26];
    bool wordEnd;
    bool player1=0;
    bool player2=0;
    ll cur_node;

    trienode()
    {
        wordEnd=false;
        for(auto &it:child)it= nullptr;
        cur_node=0;
    }

};
struct Trie
{

    trienode* root=new trienode();
    void insert(string s,bool play)
    {
        trienode* cur=root;
        for(auto it:s)
        {
            if(cur->child[it-'a']== nullptr)
                cur->child[it-'a']=new trienode (),cur->child[it-'a']->cur_node=node++;
            if(play)cur->child[it-'a']->player2=1;
            else cur->child[it-'a']->player1=1;
                cur=cur->child[it-'a'];

        }
        cur->wordEnd=true;
    }
    bool search(string s)
    {
        trienode*cur=root;
        for(auto it:s)
        {
            if(cur->child[it-'a']== nullptr)return false;
            cur=cur->child[it-'a'];
        }
        return cur->wordEnd;
    }
};
int dp[(int)2e5+1][2];
ll solve(ll i,bool player,trienode* cur)
{

    ll ret=player;
    for(int j=0;j<25;j++)
    {
        if(cur->child[j]!= nullptr)
        {
            if(player&&cur->child[j]->player2) {
                if(!cur->child[j]->player1)return 0;
                ret = min(ret, solve(cur->child[j]->cur_node, !player, cur->child[j]));
            }
            else if(cur->child[j]->player1&&!player) {
                if(!cur->child[j]->player2)return 1;
                ret = max(ret, solve(cur->child[j]->cur_node, !player, cur->child[j]));
            }
        }
    }
    return ret;

}

signed main() {
    //Go();
    Trie trie;
    int n;
    cin>>n;
    for(int i=0;i<n;i++)
    {
        string s;
        cin>>s;
        trie.insert(s,0);
    }
    int m;
    cin>>m;
    for(int i=0;i<m;i++)
    {
        string s;
        cin>>s;
        trie.insert(s,1);
    }
    memset(dp,-1, sizeof dp);
    if(solve(trie.root->cur_node,0,trie.root))
        cout<<"Nina"<<endl;
    else
        cout<<"Emilija"<<endl;


    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'void Go()':
Main.cpp:14:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   14 |     freopen("input.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:15:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   15 |     freopen("output.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

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