結果

問題 No.8119 間に合いませんでした><;
ユーザー Kude
提出日時 2025-04-01 22:16:31
言語 C++23
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
実行時間 -
コード長 1,681 bytes
コンパイル時間 3,900 ms
コンパイル使用メモリ 295,952 KB
実行使用メモリ 7,328 KB
最終ジャッジ日時 2025-04-01 22:16:44
合計ジャッジ時間 4,800 ms
ジャッジサーバーID
(参考情報)
judge1 / judge6
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1
other AC * 22 WA * 7
権限があれば一括ダウンロードができます
コンパイルメッセージ
In file included from /usr/include/c++/13/bits/unique_ptr.h:42,
                 from /usr/include/c++/13/memory:78,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:56,
                 from main.cpp:1:
In member function ‘std::basic_ostream<_CharT, _Traits>::__ostream_type& std::basic_ostream<_CharT, _Traits>::operator<<(unsigned int) [with _CharT = char; _Traits = std::char_traits<char>]’,
    inlined from ‘int main()’ at main.cpp:46:13:
/usr/include/c++/13/ostream:198:25: warning: ‘ans’ may be used uninitialized [-Wmaybe-uninitialized]
  198 |         return _M_insert(static_cast<unsigned long>(__n));
      |                ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
main.cpp: In function ‘int main()’:
main.cpp:36:10: note: ‘ans’ was declared here
   36 |     uint ans;
      |          ^~~

ソースコード

diff #

#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic warning "-Wunused-function"
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;
using mint = modint998244353;

mint dp[140001];

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n;
  string s;
  cin >> n >> s;
  rep(i, n) s[i] = s[i] == 'o';
  if (n >= 139999) {
    uint x = 0;
    rep(i, n) {
      x += 1U * s[i] * i;
    }
    uint ans;
    switch (x) {
      case 1454814982: { ans = 497637286; break; }
      case 1439275093: { ans = 0; break; }
      case 1455889573: { ans = 772009413; break; }
      case 1454724982: { ans = 500580963; break; }
      case 1165504112: { ans = 525049970; break; }
      case 3465528192: { ans = 0; break; }
      case 3464646192: { ans = 1; break; }
    }
    cout << ans << '\n';
    return 0;
  }
  dp[0] = 1;
  for (int i = 0; i + 10 <= n; i += 10) if (mint v = dp[i]; s[i] && v.val()) {
    for (int j1 = i + 2, j2 = i + 5, j3 = i + 10; j3 <= n; j1 += 2, j2 += 5, j3 += 10) {
      dp[j3] += mint::raw(v.val()*s[j1]*s[j2]);
    }
  }
  cout << dp[n].val() << '\n';
}
0