Submission #1209371

#	Time	Username	Problem	Language	Result	Execution time	Memory
1209371		ay136416	Vlak (COCI20_vlak)	C++20	70 / 70	193 ms	454428 KiB

Main

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

typedef long long ll;
typedef double lf;
typedef long double Lf;
typedef pair <int,int> pii;
typedef pair <ll, ll> pll;

#define TRACE(x) cerr << #x << "  " << x << endl
#define FOR(i, a, b) for (int i = (a); i < int(b); i++)
#define REP(i, n) FOR(i, 0, n)
#define all(x) (x).begin(), (x).end()
#define _ << " " <<

#define fi first
#define sec second
#define mp make_pair
#define pb push_back

const int ABC = 28;
const int MAXN = 1000010;

struct Node {
  int state;
  Node *child[ABC];

  Node() {
    state = 0;
    REP(i, ABC) child[i] = NULL;
  }
};

int cnt;
Node nodes[MAXN * 2];

Node *newNode() {
  return &nodes[cnt++];
}

struct Trie {
  Node *root;

  Trie() {
    root = newNode();
  }

  void insert(Node *node, string &s, int pos, int mask) {
    if (pos == (int)s.size()) {
      return;
    }
    node->state |= mask;

    if (!node->child[s[pos] - 'a']) {
      node->child[s[pos] - 'a'] = newNode();
    }
    insert(node->child[s[pos] - 'a'], s, pos + 1, mask);
  }

  int solve(Node *node, int turn) {
    if (!(node->state & (1 << turn))) {
      return 0;
    }

    for (int i = 0; i < ABC; i++) {
      if (node->child[i] && !solve(node->child[i], turn ^ 1)) {
        return 1;
      }
    }
    return 0;
  }
};

Trie T;

const string ans[] = {"Emilija", "Nina"};

int main() {
  for (int i = 0; i < 2; i++) {
    int n;
    string s;
    cin >> n;
    for (int j = 0; j < n; j++) {
      cin >> s;
      T.insert(T.root, s, 0, (1 << i));
    }
  }

  cout << ans[T.solve(T.root, 0)] << endl;
  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