Submission #1015908

#	Time	Username	Problem	Language	Result	Execution time	Memory
1015908		vjudge1	Vlak (COCI20_vlak)	C++17	70 / 70	14 ms	15680 KiB

Main

#pragma GCC optimize("O3,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,popcnt,lzcnt")
#define _GLIBCXX_FILESYSTEM
#include<bits/stdc++.h>
using namespace std;
#define ll long long

struct Trie{
    struct node{
        int nxt[26];
        node(){
            memset(nxt,-1,sizeof(nxt));
        }
    };
    vector<node> trie;
    Trie(){
        trie.emplace_back();
    }

    void insert(string &s){
        int cur = 0;
        for(int i = 0; i < s.size(); i++){
            if(trie[cur].nxt[s[i]-'a'] == -1){
                trie[cur].nxt[s[i]-'a'] = trie.size();
                trie.push_back(node());
            }
            cur = trie[cur].nxt[s[i]-'a'];
        }
    }
};
Trie nina,emil;

int dfs(int i,int j,int cur){
    for(int k = 0; k < 26; k++){
        if(cur){
            if(emil.trie[j].nxt[k] != -1 and nina.trie[i].nxt[k] == -1) return 1;
        }
        else{
            if(nina.trie[i].nxt[k] != -1 and emil.trie[j].nxt[k] == -1) return 1;
        }
    }
    vector<bool> mex(27,0);
    for(int k = 0; k < 26; k++){
        if(emil.trie[j].nxt[k] != -1 and nina.trie[i].nxt[k] != -1){
            int now = dfs(nina.trie[i].nxt[k],emil.trie[j].nxt[k],cur^1);
            if(now < 27) mex[now] = 1;
        }
    }
    for(int k = 0; k < 27; k++){
        if(!mex[k]) return k;
    }
}

void solve() {
    int n;
    cin >> n;
    for(int i = 0; i < n; i++){
        string s;
        cin >> s;
        nina.insert(s);
    }
    int m;
    cin >> m;
    for(int i = 0; i < m; i++){
        string s;
        cin >> s;
        emil.insert(s);
    }
    if(dfs(0,0,0)) cout << "Nina\n";
    else cout << "Emilija\n";
    return;
}

int32_t main() {
    ios_base::sync_with_stdio(false);cin.tie(NULL);
    int tc = 1;
    // cin >> tc;
    for(int kase = 1; kase <= tc; kase++) {
        //cout << "Case " << kase << ": ";
        solve();
    }
    return 0;
}

Compilation message (stderr)

Main.cpp: In member function 'void Trie::insert(std::string&)':
Main.cpp:22:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   22 |         for(int i = 0; i < s.size(); i++){
      |                        ~~^~~~~~~~~~
Main.cpp: In function 'int dfs(int, int, int)':
Main.cpp:42:26: warning: control reaches end of non-void function [-Wreturn-type]
   42 |     vector<bool> mex(27,0);
      |                          ^

• 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