結果

問題 No.2926 Botaoshi
ユーザー Kyo_s_sKyo_s_s
提出日時 2024-10-12 15:33:32
言語 C++23(gcc13)
(gcc 13.2.0 + boost 1.83.0)
結果
AC  
実行時間 5 ms / 2,000 ms
コード長 7,743 bytes
コンパイル時間 4,925 ms
コンパイル使用メモリ 278,128 KB
実行使用メモリ 6,820 KB
最終ジャッジ日時 2024-10-12 15:33:38
合計ジャッジ時間 6,227 ms
ジャッジサーバーID
(参考情報)
judge2 / judge1
このコードへのチャレンジ
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テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
6,816 KB
testcase_01 AC 2 ms
6,816 KB
testcase_02 AC 2 ms
6,820 KB
testcase_03 AC 2 ms
6,820 KB
testcase_04 AC 2 ms
6,820 KB
testcase_05 AC 2 ms
6,816 KB
testcase_06 AC 2 ms
6,816 KB
testcase_07 AC 2 ms
6,816 KB
testcase_08 AC 2 ms
6,816 KB
testcase_09 AC 2 ms
6,820 KB
testcase_10 AC 2 ms
6,820 KB
testcase_11 AC 2 ms
6,820 KB
testcase_12 AC 5 ms
6,820 KB
testcase_13 AC 5 ms
6,820 KB
testcase_14 AC 5 ms
6,820 KB
testcase_15 AC 2 ms
6,820 KB
testcase_16 AC 4 ms
6,816 KB
testcase_17 AC 5 ms
6,816 KB
testcase_18 AC 2 ms
6,820 KB
testcase_19 AC 4 ms
6,816 KB
testcase_20 AC 3 ms
6,820 KB
testcase_21 AC 4 ms
6,816 KB
testcase_22 AC 4 ms
6,816 KB
testcase_23 AC 2 ms
6,820 KB
testcase_24 AC 4 ms
6,816 KB
testcase_25 AC 3 ms
6,816 KB
testcase_26 AC 4 ms
6,820 KB
testcase_27 AC 3 ms
6,820 KB
testcase_28 AC 2 ms
6,816 KB
testcase_29 AC 2 ms
6,820 KB
testcase_30 AC 3 ms
6,820 KB
testcase_31 AC 3 ms
6,816 KB
testcase_32 AC 3 ms
6,816 KB
testcase_33 AC 4 ms
6,816 KB
testcase_34 AC 4 ms
6,820 KB
testcase_35 AC 2 ms
6,820 KB
testcase_36 AC 5 ms
6,820 KB
testcase_37 AC 5 ms
6,820 KB
testcase_38 AC 5 ms
6,820 KB
testcase_39 AC 5 ms
6,816 KB
testcase_40 AC 5 ms
6,816 KB
testcase_41 AC 5 ms
6,816 KB
testcase_42 AC 5 ms
6,816 KB
testcase_43 AC 5 ms
6,820 KB
testcase_44 AC 4 ms
6,820 KB
testcase_45 AC 4 ms
6,816 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

#ifdef INCLUDED_MAIN

template<int m> struct StaticModint{
    using mint = StaticModint;
  public:
    static constexpr int mod() { return m; }
    static mint raw(int v) {
        mint x;
        x._v = v;
        return x;
    }

    StaticModint() : _v(0) {}
    template <class T>
    StaticModint(T v) {
        long long x = (long long)(v % (long long)(umod()));
        if (x < 0) x += umod();
        _v = (unsigned int)(x);
    }

    unsigned int val() const { return _v; }

    mint& operator++() {
        _v++;
        if (_v == umod()) _v = 0;
        return *this;
    }
    mint& operator--() {
        if (_v == 0) _v = umod();
        _v--;
        return *this;
    }
    mint operator++(int) {
        mint result = *this;
        ++*this;
        return result;
    }
    mint operator--(int) {
        mint result = *this;
        --*this;
        return result;
    }

    mint& operator+=(const mint& rhs) {
        _v += rhs._v;
        if (_v >= umod()) _v -= umod();
        return *this;
    }
    mint& operator-=(const mint& rhs) {
        _v -= rhs._v;
        if (_v >= umod()) _v += umod();
        return *this;
    }
    mint& operator*=(const mint& rhs) {
        unsigned long long z = _v;
        z *= rhs._v;
        _v = (unsigned int)(z % umod());
        return *this;
    }
    mint& operator/=(const mint& rhs) { return *this = *this * rhs.inv(); }

    mint operator+() const { return *this; }
    mint operator-() const { return mint() - *this; }

    mint pow(long long n) const {
        assert(0 <= n);
        mint x = *this, r = 1;
        while (n) {
            if (n & 1) r *= x;
            x *= x;
            n >>= 1;
        }
        return r;
    }
    mint inv() const {
        assert(_v);
        return pow(umod() - 2);
    }

    friend mint operator+(const mint& lhs, const mint& rhs) { return mint(lhs) += rhs;}
    friend mint operator-(const mint& lhs, const mint& rhs) { return mint(lhs) -= rhs; }
    friend mint operator*(const mint& lhs, const mint& rhs) { return mint(lhs) *= rhs; }
    friend mint operator/(const mint& lhs, const mint& rhs) { return mint(lhs) /= rhs; }
    friend bool operator==(const mint& lhs, const mint& rhs) { return lhs._v == rhs._v; }
    friend bool operator!=(const mint& lhs, const mint& rhs) { return lhs._v != rhs._v; }

    friend ostream &operator<<(ostream &os, mint x) {
        os << x.val();
        return (os);
    }

  private:
    unsigned int _v;
    static constexpr unsigned int umod() { return m; }

};

using Modint998244353 = StaticModint<998244353>;
using Modint1000000007 = StaticModint<1000000007>;

using Mint = Modint998244353;

int main() {

    LL(N);
    STR(S);

    Mint l = 0, r = 0, u = 1;

    rep(i, N) {
        char c = S[i];
        Mint nl = 0, nr = 0, nu = 0;
        if (c == 'L' || c == '.') {
            nl += l + u;
        }
        if (c == 'R' || c == '.') {
            nr += l + r + u;
        }
        if (c == 'U' || c == '.') {
            nu += l + r + u;
        }
        l = nl;
        r = nr;
        u = nu;
    }
    Mint ans = l + r + u;
    OUT(ans);
}

#else

#include <bits/stdc++.h>
using namespace std;
// #include <atcoder/all>
// using namespace atcoder;
// https://atcoder.github.io/ac-library/master/document_ja/

/* alias */
using ull = unsigned long long;
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using vi = vector<int>;
using vll = vector<long long>;
using vd = vector<double>;
using vs = vector<string>;
using vb = vector<bool>;
using vpii = vector<pair<int, int>>;
using vpll = vector<pair<ll, ll>>;
using vvi = vector<vector<int>>;
using vvll = vector<vector<long long>>;
using vvd = vector<vector<double>>;
using vvs = vector<vector<string>>;
using vvb = vector<vector<bool>>;
template<typename T> using min_priority_queue = priority_queue<T, vector<T>, greater<T>>;

/* define */
#define MOD 998244353
// #define MOD 1000000007
#define INF (1LL << 60)
#define elif else if
#define pb push_back
#define pf push_front
#define fi first
#define se second
#define all(obj) (obj).begin(), (obj).end()
#define YESNO(bool) cout << (bool ? "YES\n" : "NO\n")
#define YesNo(bool) cout << (bool ? "Yes\n" : "No\n")
#define yesno(bool) cout << (bool ? "yes\n" : "no\n")
template<class T> bool chmax(T &a, const T &b) {if(a<b){ a=b; return 1;} return 0;}
template<class T> bool chmin(T &a, const T &b) {if(b<a){ a=b; return 1;} return 0;}
#define debug(x) cerr << #x << ":" << x << "\n";

/* REP macro */
#define reps(i, a, n) for(ll i = (a); i < (n); i++)
#define rep(i, n) reps(i, 0, (n))
#define rrep(i, n) reps(i, 1, (n + 1))
#define repd(i, n) for(ll i = (n - 1); i >= 0; i--)
#define rrepd(i, n) for(ll i = (n); i >= 1; i--)
#define fore(i, a) for(auto &i: a)

/* vector */
template<class T> T vmax(vector<T> &array){ T ret = array[0]; for(T a: array) chmax(ret, a); return ret; }
template<class T> T vmin(vector<T> &array){ T ret = array[0]; for(T a: array) chmin(ret, a); return ret; }
template<class T> T sum(vector<T> &array){ T ret = 0; for(T a:array) ret += a; return ret; }
template<class T> void list_set(vector<T> &array){ sort(all(array)); array.erase(unique(all(array)),array.end()); }
template<class T> int bisect_left(vector<T> &array, T key){ return lower_bound(all(array),key) - array.begin(); }
template<class T> int bisect_right(vector<T> &array, T key){ return upper_bound(all(array),key) - array.begin(); }

/* string */
ll string_to_ll(string n){ ll ret = 0, k = 1; while(n.length() > 0){ ret += k * (n.back() - '0'); n.pop_back(); k *= 10; } return ret; }
string ll_to_string(ll n){ string ret = ""; while(n > 0){ ret.pb((n % 10) + '0'); n /= 10; } reverse(all(ret)); return ret; }

struct popopo{ popopo(){ cin.tie(0); ios::sync_with_stdio(0); cout << fixed << setprecision(15); }; } popopoppo;

// n = 1,...,N に対して、n % A < B を満たすものの数 
ll Count_of_n_mod_A_less_than_B(ll N, ll A, ll B){ return N / A * min(A, B) + min(N % A, B - 1); }

bool include(ll l, ll r, ll x) { return l <= x && x < r; }

/* IN/OUT */
int scan() { return getchar(); }
void scan(int &a) { cin >> a; }
void scan(long long &a) { cin >> a; }
void scan(char &a) { cin >> a; }
void scan(double &a) { cin >> a; }
void scan(string &a) { cin >> a; }
template <class T, class S> void scan(pair<T, S> &p) { scan(p.first), scan(p.second); }
template <class T> void scan(vector<T> &);
template <class T> void scan(vector<T> &a) { for(auto &i : a) scan(i); }

void IN(){}
template<class Head, class... Tail> void IN(Head& head, Tail &...tail){ scan(head); IN(tail...); }

#define INT(...) int __VA_ARGS__; IN(__VA_ARGS__)
#define LL(...) ll __VA_ARGS__; IN(__VA_ARGS__)
#define STR(...) string __VA_ARGS__; IN(__VA_ARGS__)
#define VEC(type, name, size) vector<type> name(size); IN(name)
#define VECS(type, name, size) vector<type> name(size + 1); for(int i = 1; i <= size; i++) scan(name[i])

void OUT(){ cout << "\n"; }
template<class T> void output(T a){ cout << a; }
template<class T> void output(vector<T> v){ for(int i = 0; i < v.size(); i++) cout << v[i] << (i == v.size() - 1 ? "" : " "); }
template<class Head, class... Tail> void OUT(const Head &head, const Tail &...tail) { output(head); if(sizeof...(tail)) cout << " "; OUT(tail...); }

void FLASH(){ cout << endl; }
template<class Head, class... Tail> void FLASH(const Head  &head, const Tail &...tail) { output(head); if(sizeof...(tail)) cout << " "; FLASH(tail...); }

namespace kyo {

long long bisect(long long ok, long long ng, function<bool(long long)> is_ok) { while (abs(ok - ng) > 1) { long long mid = ok + (ng - ok) / 2; (is_ok(mid) ? ok : ng) = mid; } return ok; }

}

#define INCLUDED_MAIN
#include __FILE__ // Codeforces で壊れるらしい

#endif
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