제출 #862968

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
862968		duckindog	Vlak (COCI20_vlak)	C++14	0 / 70	22 ms	69208 KiB

Main

// from duckindog wth depression
#include<bits/stdc++.h>

using namespace std;

const int N = 4 * (2e5 + 10);
string a[N], b[N];
int nwt[N][27];
int st[N];

int it, bit;
void add(string x, int y) {
  int g = 0, sz = x.size();
  int cnt = 0;
  for (int i = bit; i >= 1; --i) {
    st[g] |= y;
    if (i <= sz) ++cnt;
    int ch = !cnt ? 0 : x[cnt - 1] - 'a' + 1;
    if (!nwt[g][ch]) nwt[g][ch] = ++it;
    g = nwt[g][ch];
  } st[g] |= y;
  return;
}

void dfs(int g = 0) {
  for (int i = 0; i <= 26; ++i) {
    if (!nwt[g][i]) continue;
    char ni = !i ? '0' : char(i + 'a' - 1);
    cout << g << " " << nwt[g][i] << " " << ni << "\n";
    dfs(nwt[g][i]);
  }
  return;
}

bool answer = 0;
void check(int g = 0, int y = 0, int j = bit) {
  if (!j) {
    answer = 1;
    return;
  }

  for (int i = 0; i <= 26; ++i) {
    bool bel = i;
    int ny = y + bel;
    int need = ny % 2;
    bool trapdoor = 0;
    int v = nwt[g][i];
    if (need && st[v] % 2 == 1) trapdoor = 1;
    if (!need && st[v] >= 2) trapdoor = 1;
    if (!v) continue;
    if (!i) {
      check(v, 0, j - 1);
      continue;
    }
    if (!trapdoor) continue;
    check(v, ny, j - 1);
  }
  return;
}

int32_t main() {
  cin.tie(0)->sync_with_stdio(0);

  if (fopen("duck.inp", "r")) {
    freopen("duck.inp", "r", stdin);
    freopen("duck.out", "w", stdout);
  }
  int n; cin >> n;
  for (int i = 1; i <= n; ++i) cin >> a[i], bit = max(bit, int(a[i].size()));
  int m; cin >> m;
  for (int i = 1; i <= m; ++i) cin >> b[i], bit = max(bit, int(b[i].size()));

  for (int i = 1; i <= n; ++i) add(a[i], 1);
  for (int i = 1; i <= m; ++i) add(b[i], 2);
  check();
  cout << (answer ? "Nina" : "Emilija");
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'int32_t main()':
Main.cpp:65:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   65 |     freopen("duck.inp", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:66:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   66 |     freopen("duck.out", "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10