Submission #1274166

#	Time	Username	Problem	Language	Result	Execution time	Memory
1274166		dhuyyyy	Vlak (COCI20_vlak)	C++20	0 / 70	1 ms	1860 KiB

Main

#include<bits/stdc++.h>
#define fi first
#define se second
#define int long long
using namespace std;

using ll = long long;
using ii = pair<int, int>;
using aa = array<int,4>;

const int N = 2e5+5;
const int INF = 1e9;
const int MOD = 998244353;  

int n, m, u, timer = 0;

int trie[2][N][27], dp[N];

string s;

void add(string s,int type){
    u = 0;
    for (char c : s){
        if (trie[type][u][c - 'a'] == 0) trie[type][u][c - 'a'] = ++timer;
        u = trie[type][u][c - 'a'];
    }
}
int dfs(int u,int v, int turn){
    if (dp[u] != -1) return dp[u];
    for (int j = 0; j <= 25; j++){
        if (trie[turn][u][j] && !trie[turn^1][v][j]){
            dp[u] = turn;
            break;
        }
    }  
    for (int j = 0; j <= 25; j++){
        if (trie[turn][u][j]){
            int tmp = dfs(trie[0][u][j],trie[1][v][j],turn ^ 1);
            if (tmp == turn){
                dp[u] = turn;
                return dp[u];
            } else dp[u] = tmp;
        }
    }
    return dp[u];
}
signed main()
{   
    ios_base::sync_with_stdio(false); 
    cin.tie(NULL);cout.tie(NULL);
    #ifndef ONLINE_JUDGE
    freopen("in.txt", "r", stdin);
    freopen("out.txt", "w", stdout);
    #endif 
    cin >> n;
    for (int i = 1; i <= n; i++){
        cin >> s;
        add(s,0);
    }    
    cin >> m;
    timer = 0;
    for (int i = 1; i <= m; i++){
        cin >> s;
        add(s,1);
    }
    for (int i = 0; i < 200000; i++) dp[i] = -1;
    cout << (dfs(0,0,0) == 0 ? "Nina" : "Emilija");
    return 0;
}
/*
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*/

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:52:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |     freopen("in.txt", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
Main.cpp:53:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |     freopen("out.txt", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~

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