結果

問題 No.1702 count good string
ユーザー sten_sansten_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 112 ms / 2,000 ms
コード長 3,547 bytes
コンパイル時間 2,188 ms
コンパイル使用メモリ 206,528 KB
実行使用メモリ 10,204 KB
最終ジャッジ日時 2023-10-12 22:00:49
合計ジャッジ時間 7,181 ms
ジャッジサーバーID
（参考情報） 		judge11 / judge12
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 1 ms
4,352 KB
testcase_01 AC 1 ms
4,348 KB
testcase_02 AC 2 ms
4,348 KB
testcase_03 AC 2 ms
4,348 KB
testcase_04 AC 2 ms
4,352 KB
testcase_05 AC 1 ms
4,348 KB
testcase_06 AC 2 ms
4,348 KB
testcase_07 AC 2 ms
4,348 KB
testcase_08 AC 2 ms
4,348 KB
testcase_09 AC 2 ms
4,352 KB
testcase_10 AC 2 ms
4,352 KB
testcase_11 AC 1 ms
4,348 KB
testcase_12 AC 2 ms
4,348 KB
testcase_13 AC 112 ms
10,152 KB
testcase_14 AC 105 ms
10,160 KB
testcase_15 AC 112 ms
10,104 KB
testcase_16 AC 111 ms
10,156 KB
testcase_17 AC 110 ms
10,156 KB
testcase_18 AC 111 ms
10,104 KB
testcase_19 AC 111 ms
10,112 KB
testcase_20 AC 111 ms
10,092 KB
testcase_21 AC 106 ms
10,080 KB
testcase_22 AC 111 ms
10,100 KB
testcase_23 AC 3 ms
4,352 KB
testcase_24 AC 2 ms
4,352 KB
testcase_25 AC 2 ms
4,348 KB
testcase_26 AC 2 ms
4,352 KB
testcase_27 AC 2 ms
4,352 KB
testcase_28 AC 2 ms
4,352 KB
testcase_29 AC 3 ms
4,348 KB
testcase_30 AC 2 ms
4,348 KB
testcase_31 AC 3 ms
4,352 KB
testcase_32 AC 2 ms
4,352 KB
testcase_33 AC 104 ms
10,156 KB
testcase_34 AC 97 ms
10,088 KB
testcase_35 AC 103 ms
10,204 KB
testcase_36 AC 105 ms
10,156 KB
testcase_37 AC 104 ms
10,148 KB
testcase_38 AC 102 ms
10,156 KB
testcase_39 AC 103 ms
10,184 KB
testcase_40 AC 103 ms
10,184 KB
testcase_41 AC 104 ms
10,160 KB
testcase_42 AC 104 ms
10,120 KB
testcase_43 AC 100 ms
10,152 KB
testcase_44 AC 100 ms
10,156 KB
testcase_45 AC 1 ms
4,348 KB
testcase_46 AC 2 ms
4,352 KB
testcase_47 AC 2 ms
4,348 KB
testcase_48 AC 1 ms
4,352 KB
testcase_49 AC 1 ms
4,352 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 # 

#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;
}
0