#844414 (C++17) No.1702 count good string

• 問題: No.1702 count good string
• ユーザー: sten_san
• 提出日時: 2023-02-27 11:44:11
• 言語: C++17 (gcc 12.3.0 + boost 1.83.0)
• 結果: AC
• 実行時間: 117 ms / 2,000 ms
• コード長: 3,547 bytes
• コンパイル時間: 2,258 ms
• コンパイル使用メモリ: 207,608 KB
• 実行使用メモリ: 10,436 KB
• 最終ジャッジ日時: 2024-09-14 20:15:00
• 合計ジャッジ時間: 6,962 ms
• ジャッジサーバーID （参考情報）: judge1 / judge2

入力	結果	実行時間; 実行使用メモリ
testcase_00	AC	2 ms; 5,248 KB
testcase_01	AC	2 ms; 5,248 KB
testcase_02	AC	2 ms; 5,376 KB
testcase_03	AC	2 ms; 5,376 KB
testcase_04	AC	2 ms; 5,376 KB
testcase_05	AC	2 ms; 5,376 KB
testcase_06	AC	2 ms; 5,376 KB
testcase_07	AC	2 ms; 5,376 KB
testcase_08	AC	2 ms; 5,376 KB
testcase_09	AC	2 ms; 5,376 KB
testcase_10	AC	2 ms; 5,376 KB
testcase_11	AC	2 ms; 5,376 KB
testcase_12	AC	2 ms; 5,376 KB
testcase_13	AC	115 ms; 10,428 KB
testcase_14	AC	115 ms; 10,300 KB
testcase_15	AC	115 ms; 10,304 KB
testcase_16	AC	117 ms; 10,308 KB
testcase_17	AC	115 ms; 10,308 KB
testcase_18	AC	115 ms; 10,304 KB
testcase_19	AC	115 ms; 10,308 KB
testcase_20	AC	115 ms; 10,432 KB
testcase_21	AC	114 ms; 10,148 KB
testcase_22	AC	114 ms; 10,304 KB
testcase_23	AC	3 ms; 5,376 KB
testcase_24	AC	3 ms; 5,376 KB
testcase_25	AC	2 ms; 5,376 KB
testcase_26	AC	3 ms; 5,376 KB
testcase_27	AC	2 ms; 5,376 KB
testcase_28	AC	3 ms; 5,376 KB
testcase_29	AC	3 ms; 5,376 KB
testcase_30	AC	3 ms; 5,376 KB
testcase_31	AC	3 ms; 5,376 KB
testcase_32	AC	3 ms; 5,376 KB
testcase_33	AC	105 ms; 10,176 KB
testcase_34	AC	106 ms; 10,436 KB
testcase_35	AC	108 ms; 10,304 KB
testcase_36	AC	108 ms; 10,308 KB
testcase_37	AC	108 ms; 10,304 KB
testcase_38	AC	108 ms; 10,304 KB
testcase_39	AC	110 ms; 10,432 KB
testcase_40	AC	106 ms; 10,304 KB
testcase_41	AC	106 ms; 10,304 KB
testcase_42	AC	107 ms; 10,428 KB
testcase_43	AC	102 ms; 10,172 KB
testcase_44	AC	101 ms; 10,432 KB
testcase_45	AC	2 ms; 5,376 KB
testcase_46	AC	2 ms; 5,376 KB
testcase_47	AC	2 ms; 5,376 KB
testcase_48	AC	2 ms; 5,376 KB
testcase_49	AC	2 ms; 5,376 KB

ソースコード

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

struct iofast_t {
    iofast_t() {
        ios::sync_with_stdio(false);
        cin.tie(nullptr);
    }
} iofast;

struct uns_t {} uns;
template <typename Element, typename Head, typename ...Args>
auto vec(Element init, Head arg, Args ...args) {
    if constexpr (sizeof...(Args) == 0) return vector(arg, init);
    else return vector(arg, vec(init, args...));
}
template <typename Element, typename Head, typename ...Args>
auto vec(uns_t, Head arg, Args ...args) {
    return vec(Element(), arg, args...);
}

template <typename Container>
auto distance(const Container &c, decltype(begin(c)) iter) {
    return distance(begin(c), iter);
}

template <typename RIter, typename Compare = less<typename iterator_traits<RIter>::value_type>>
auto isort(RIter first, RIter last, Compare comp = Compare()) {
    vector<int> i(distance(first, last));
    iota(begin(i), end(i), 0);
    sort(begin(i), end(i), [&](auto x, auto y) {
        return comp(*(first + x), *(first + y));
    });
    return i;
}

template <typename, template <typename> typename, typename = void_t<>>
struct detect : false_type {};
template <typename T, template <typename> typename Check>
struct detect<T, Check, void_t<Check<T>>> : true_type {};
template <typename T, template <typename> typename Check>
constexpr inline bool detect_v = detect<T, Check>::value;

template <typename T>
using has_member_sort = decltype(declval<T>().sort());

template <typename Container, typename Compare = less<typename Container::value_type>>
auto sorted(Container c, Compare comp = Compare()) {
    if constexpr (detect_v<Container, has_member_sort>) {
        c.sort(comp);
        return c;
    }
    else {
        sort(begin(c), end(c), comp);
        return c;
    }
}

template <typename Container, typename Compare = equal_to<typename Container::value_type>>
auto uniqued(Container c, Compare comp = Compare()) {
    c.erase(unique(begin(c), end(c), comp), end(c));
    return c;
}

template <typename T, typename Compare = less<T>>
T &chmin(T &l, T r, Compare &&f = less<T>()) { return l = min(l, r, f); }
template <typename T, typename Compare = less<T>>
T &chmax(T &l, T r, Compare &&f = less<T>()) { return l = max(l, r, f); }

template <typename F>
constexpr auto fix(F &&f) noexcept {
    return [f = std::tuple<F>(std::forward<F>(f))](auto &&...args) mutable {
        return std::get<0>(f)(fix(std::get<0>(f)), std::forward<decltype(args)>(args)...);
    };
}

#include <atcoder/modint>
using mint = atcoder::modint1000000007;

int main() {
    constexpr string_view u = "yukicoder";

    constexpr auto set = [&]() {
        array<array<char, size(u)>, size(u) + 1> set = {};

        for (size_t i = 0; i < size(u); ++i) {
            set[0][i] = u[i];
        }

        for (size_t i = 1; i < size(set); ++i) {
            for (size_t j = 0; j < size(u); ++j) {
                set[i][j] = u[j];
            }
            set[i][i - 1] = '?';
        }

        return set;
    }();

    int n; cin >> n;
    string s; cin >> s;

    mint ans = 0;
    for (auto t : set) {
        auto dp = vec<mint>(0, n + 1, size(t) + 1);

        dp[0][0] = 1;
        for (int i = 1; i <= n; ++i) {
            dp[i][0] = dp[i - 1][0];
            for (size_t j = 1; j <= size(t); ++j) {
                dp[i][j] = dp[i - 1][j];
                if (s[i - 1] == t[j - 1]) {
                    dp[i][j] += dp[i - 1][j - 1];
                }
            }
        }

        ans += dp[n][size(t)];
    }

    cout << ans.val() << endl;
}