제출 #1123902

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1123902		ljtunas	Vlak (COCI20_vlak)	C++20	70 / 70	21 ms	25672 KiB

Main

// author : anhtun_hi , nqg
#include <bits/stdc++.h>
#define ll long long
#define ii pair<ll, ll>
#define fi first
#define se second
#define all(x) x.begin(), x.end()
#define reset(h, v)    memset(h, v, sizeof h)
#define Forv(i, a)     for(auto& i : a)
#define For(i, a, b)   for(int i = a; i <= b; ++i)
#define Ford(i, a, b)  for(int i = a; i >= b; --i)
#define c_bit(i)     __builtin_popcountll(i)
#define Bit(mask, i)    ((mask >> i) & 1LL)
#define onbit(mask, i)  ((mask) bitor (1LL << i))
#define offbit(mask, i) ((mask) &~ (1LL << i))
#define Log2(x) (63 - __builtin_clzll(x))
#define TIME (1.0 * clock() / CLOCKS_PER_SEC)
using namespace std;
namespace std {
    template <typename T, int D>
    struct _vector : public vector <_vector <T, D - 1>> {
        static_assert(D >= 1, "Dimension must be positive!");
        template <typename... Args>
        _vector(int n = 0, Args... args) : vector <_vector <T, D - 1>> (n, _vector <T, D - 1> (args...)) {}
    };
    template <typename T> struct _vector <T, 1> : public vector <T> {
        _vector(int n = 0, const T& val = T()) : vector <T> (n, val) {}
    };
    template <class A, class B> bool minimize(A &a, B b){return a > b ? a = b, true : false;}
    template <class A, class B> bool maximize(A &a, B b){return a < b ? a = b, true : false;}
}
const int dx[] = {0, 0, +1, -1}, dy[] = {-1, +1, 0, 0}, LOG = 20, base = 311, inf = 1e9 + 5;
const int MAXN = 1e6 + 5;
const  ll  mod = 1e9 + 7;
const  ll   oo = 1e18;

//#define int long long

int n, m;


struct Trie{
    struct Node{
        Node *child[30];
        Node(){
            For(i, 0, 25) child[i] = nullptr;
        }
    };
    Node *root = new Node();

    void add(const string &s){
        Node *r = root;
        Forv(c, s){
            if (r -> child[c - 'a'] == nullptr){
                r -> child[c - 'a'] = new Node();
            }
            r = r -> child[c - 'a'];
        }
    }
} trie[2];

bool solve(Trie::Node *r1, Trie::Node *r2){
    bool ans = 0;
    For(i, 0, 25){
        if(r1 -> child[i] == nullptr) continue;
        if(r2 -> child[i] == nullptr) {ans = 1; continue;}
        ans |= (!solve(r2 -> child[i], r1 -> child[i]));
    }
    return ans;
}

void Solve() {
    cin >> n;
    For(i, 1, n){
        string s; cin >> s;
        trie[0].add(s);
    }
    cin >> m;
    For(i, 1, m){
        string s; cin >> s;
        trie[1].add(s);
    }
    cout << (solve(trie[0].root, trie[1].root) ? "Nina" : "Emilija");
}

signed main() {
    cin.tie(0) -> sync_with_stdio(0);
    if(fopen("vlak.inp", "r")) {
        freopen("vlak.inp", "r", stdin);
        freopen("vlak.out", "w", stdout);
    }

    int t = 1;
//    cin >> t;
    while(t --) Solve();

    return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int main()':
Main.cpp:89:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   89 |         freopen("vlak.inp", "r", stdin);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:90:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   90 |         freopen("vlak.out", "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