Submission #388463

#	Time	Username	Problem	Language	Result	Execution time	Memory
388463		phathnv	Vlak (COCI20_vlak)	C++11	70 / 70	24 ms	21800 KiB

Main

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;

struct Node{
    int state, cnt[2];
    Node *child[26];
    Node(){
        state = 0;
        cnt[0] = cnt[1] = 0;
        for(int i = 0; i < 26; i++)
            child[i] = nullptr;
    }
};

struct Trie{
    Node *root = new Node;
    void add(const string &s, int type){
        Node *cur = root;
        for(char ch : s){
            int nxt = ch - 'a';
            if (cur->child[nxt] == nullptr)
                cur->child[nxt] = new Node;
            cur = cur->child[nxt];
            cur->cnt[type]++;
        }
    }
    bool solve(Node *cur, int turn){
        cur->state = 0;
        for(int i = 0; i < 26; i++){
            if (cur->child[i] == nullptr)
                continue;
            if (cur->child[i]->cnt[turn] && !solve(cur->child[i], turn ^ 1))
                cur->state = 1;
        }
        return cur->state;
    }
    bool solve(){
        return solve(root, 0);
    }
};

int m, n;
Trie trie;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin >> m;
    for(int i = 1; i <= m; i++){
        string s;
        cin >> s;
        trie.add(s, 0);
    }
    cin >> n;
    for(int i = 1; i <= n; i++){
        string s;
        cin >> s;
        trie.add(s, 1);
    }
    cout << (trie.solve()? "Nina" : "Emilija");
    return 0;
}

• 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