제출 #863004

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
863004		duckindog	Vlak (COCI20_vlak)	C++14	70 / 70	31 ms	113500 KiB

Main

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

using namespace std;

const int N = 8 * (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;
  for (auto ch : x) {
    st[g] |= y;
    int w = ch - 'a' + 1;
    if (!nwt[g][w]) nwt[g][w] = ++it;
    g = nwt[g][w];
  } 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 check(int g = 0, bool y = 0) {
  bool w = 0;
  for (int i = 1; i <= 26; ++i) {
    bool ny = 1 - y;
    bool trapdoor = 0;
    int v = nwt[g][i];
    if (ny && st[v] % 2 == 1) trapdoor = 1;
    if (!ny && st[v] >= 2) trapdoor = 1;
    if (!v || !trapdoor) continue; w = 1;
    if (!y && check(v, ny)) return 1;
    if (y && !check(v, ny)) return 0;
  }
  return y;
}

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);
  cout << (check() ? "Nina" : "Emilija");

}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'bool check(int, bool)':
Main.cpp:41:5: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   41 |     if (!v || !trapdoor) continue; w = 1;
      |     ^~
Main.cpp:41:36: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   41 |     if (!v || !trapdoor) continue; w = 1;
      |                                    ^
Main.cpp:34:8: warning: variable 'w' set but not used [-Wunused-but-set-variable]
   34 |   bool w = 0;
      |        ^
Main.cpp: In function 'int32_t main()':
Main.cpp:52:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   52 |     freopen("duck.inp", "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
Main.cpp:53:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   53 |     freopen("duck.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