#852616 (C++17) No.2254 Reverse Only

提出ソース

結果

問題	No.2254 Reverse Only
ユーザー	haruki_K
提出日時	2023-03-24 22:15:10
言語	C++17 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	82 ms / 2,000 ms
コード長	13,868 bytes
コンパイル時間	2,550 ms
コンパイル使用メモリ	216,068 KB
実行使用メモリ	21,928 KB
最終ジャッジ日時	2024-09-18 17:12:52
合計ジャッジ時間	6,080 ms
ジャッジサーバーID （参考情報）	judge1 / judge5

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 5,248 KB
testcase_01	AC	2 ms 5,376 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	70 ms 6,400 KB
testcase_09	AC	82 ms 20,376 KB
testcase_10	AC	39 ms 6,656 KB
testcase_11	AC	70 ms 6,400 KB
testcase_12	AC	71 ms 6,400 KB
testcase_13	AC	39 ms 6,656 KB
testcase_14	AC	39 ms 6,528 KB
testcase_15	AC	40 ms 6,944 KB
testcase_16	AC	79 ms 21,428 KB
testcase_17	AC	78 ms 21,928 KB
testcase_18	AC	70 ms 6,940 KB
testcase_19	AC	54 ms 6,940 KB
testcase_20	AC	75 ms 20,656 KB
testcase_21	AC	75 ms 20,272 KB
testcase_22	AC	63 ms 21,412 KB
testcase_23	AC	75 ms 21,164 KB
testcase_24	AC	75 ms 21,040 KB
testcase_25	AC	76 ms 20,916 KB
testcase_26	AC	78 ms 21,552 KB
testcase_27	AC	3 ms 6,944 KB
testcase_28	AC	16 ms 6,944 KB
testcase_29	AC	19 ms 6,940 KB
testcase_30	AC	28 ms 6,944 KB
testcase_31	AC	11 ms 6,940 KB
testcase_32	AC	11 ms 6,940 KB
testcase_33	AC	6 ms 6,940 KB
testcase_34	AC	24 ms 6,944 KB
testcase_35	AC	16 ms 6,944 KB
testcase_36	AC	59 ms 6,940 KB
testcase_37	AC	62 ms 6,940 KB
testcase_38	AC	8 ms 6,944 KB
testcase_39	AC	55 ms 6,940 KB
testcase_40	AC	3 ms 6,944 KB
testcase_41	AC	15 ms 6,940 KB
testcase_42	AC	9 ms 6,940 KB
testcase_43	AC	26 ms 6,948 KB
testcase_44	AC	37 ms 6,940 KB
testcase_45	AC	40 ms 6,940 KB
testcase_46	AC	3 ms 6,944 KB

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ソースコード

raw source code

// >>> TEMPLATES
#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using ld = long double;
using i32 = int32_t;
using i64 = int64_t;
using u32 = uint32_t;
using u64 = uint64_t;
#define int ll
using pii = pair<int, int>;
#define rep(i, n) if (const int _rep_n = n; true) for (int i = 0; i < _rep_n; i++)
#define rep1(i, n) if (const int _rep_n = n; true) for (int i = 1; i <= _rep_n; i++)
#define repR(i, n) for (int i = (int)(n)-1; i >= 0; i--)
#define rep1R(i, n) for (int i = (int)(n); i >= 1; i--)
#define loop(i, a, B) for (int i = a; i B; i++)
#define loopR(i, a, B) for (int i = a; i B; i--)
#define all(x) begin(x), end(x)
#define allR(x) rbegin(x), rend(x)
#define pb push_back
#define eb emplace_back
#define fst first
#define snd second
template <class Int> auto constexpr inf_ = numeric_limits<Int>::max()/2-1;
auto constexpr INF32 = inf_<int32_t>;
auto constexpr INF64 = inf_<int64_t>;
auto constexpr INF   = inf_<int>;
#ifdef LOCAL
#include "debug.hpp"
#define oj_local(x, y) (y)
#else
#define dump(...) (void)(0)
#define debug if (0)
#define oj_local(x, y) (x)
#endif

template <class T, class Comp> struct pque : priority_queue<T, vector<T>, Comp> {
    vector<T> &data() { return this->c; }
    void clear() { this->c.clear(); }
};
template <class T> using pque_max = pque<T, less<T>>;
template <class T> using pque_min = pque<T, greater<T>>;

template <class T, class = typename T::iterator, enable_if_t<!is_same<T, string>::value, int> = 0>
ostream& operator<<(ostream& os, T const& a) {
    bool f = true;
    for (auto const& x : a) os << (f ? "" : " ") << x, f = false;
    return os;
}
template <class T, size_t N, enable_if_t<!is_same<T, char>::value, int> = 0>
ostream& operator<<(ostream& os, const T (&a)[N]) {
    bool f = true;
    for (auto const& x : a) os << (f ? "" : " ") << x, f = false;
    return os;
}
template <class T, class = decltype(begin(declval<T&>())), class = typename enable_if<!is_same<T, string>::value>::type>
istream& operator>>(istream& is, T &a) { for (auto& x : a) is >> x; return is; }
template <class T, class S> ostream& operator<<(ostream& os, pair<T, S> const& p) {
    return os << p.first << " " << p.second;
}
template <class T, class S> istream& operator>>(istream& is, pair<T, S>& p) {
    return is >> p.first >> p.second;
}
template <class... T> ostream& operator<<(ostream& os, tuple<T...> const& t) {
    bool f = true;
    apply([&](auto&&... x) { ((os << (f ? f = false, "" : " ") << x), ...); }, t);
    return os;
}
template <class... T> istream& operator>>(istream& is, tuple<T...>& t) {
    apply([&](auto&&... x) { ((is >> x), ...); }, t);
    return is;
}
struct IOSetup {
    IOSetup() {
        cin.tie(nullptr);
        ios::sync_with_stdio(false);
        cout << fixed << setprecision(15);
    }
} iosetup;

template <class F> struct FixPoint : private F {
    constexpr FixPoint(F&& f) : F(forward<F>(f)) {}
    template <class... T> constexpr auto operator()(T&&... x) const {
        return F::operator()(*this, forward<T>(x)...);
    }
};
struct MakeFixPoint {
    template <class F> constexpr auto operator|(F&& f) const {
        return FixPoint<F>(forward<F>(f));
    }
};
#define def(name, ...) auto name = MakeFixPoint() | [&](auto &&name, __VA_ARGS__)

template <class F> struct FixPoint_d : private F {
    const char* const name;
    constexpr FixPoint_d(F&& f, const char* name) : F(forward<F>(f)), name(name) {}
    template <class... T> constexpr auto operator()(T&&... x) const {
        auto ret = F::operator()(*this, forward<T>(x)...);
#ifdef LOCAL
        cerr << name << to_s(tuple(x...)) << " -> " << to_s(ret) << '\n';
#endif
        return ret;
    }
};
struct MakeFixPoint_d {
    const char* const name;
    MakeFixPoint_d(const char* name) : name(name) {}
    template <class F> constexpr auto operator|(F&& f) const {
        return FixPoint_d<F>(forward<F>(f), name);
    }
};
#ifdef LOCAL
#define def_d(name, ...) auto name = MakeFixPoint_d(#name) | [&](auto &&name, __VA_ARGS__)
#else
#define def_d def
#endif

template <class T, size_t d> struct vec_impl {
    using type = vector<typename vec_impl<T, d-1>::type>;
    template <class... U> static type make_v(size_t n, U&&... x) {
        return type(n, vec_impl<T, d-1>::make_v(forward<U>(x)...));
    }
};
template <class T> struct vec_impl<T, 0> {
    using type = T;
    static type make_v(T const& x = {}) { return x; }
};
template <class T, size_t d = 1> using vec = typename vec_impl<T, d>::type;
template <class T, size_t d = 1, class... Args> auto make_v(Args&&... args) {
    return vec_impl<T, d>::make_v(forward<Args>(args)...);
}
template <class T> void quit(T const& x) { cout << x << '\n'; exit(0); }
template <class T, class U> constexpr bool chmin(T& x, U const& y) {
    return x > (T)y ? x = (T)y, true : false;
}
template <class T, class U> constexpr bool chmax(T& x, U const& y) {
    return x < (T)y ? x = (T)y, true : false;
}
template <class It> constexpr auto sumof(It b, It e) {
    return accumulate(b, e, typename iterator_traits<It>::value_type{});
}
template <class T, class = decltype(begin(declval<T&>()))>
constexpr auto min(T const& a) { return *min_element(begin(a), end(a)); }
template <class T, class = decltype(begin(declval<T&>()))>
constexpr auto max(T const& a) { return *max_element(begin(a), end(a)); }
template <class T> constexpr T min(set<T> const& st) { assert(st.size()); return *st.begin(); }
template <class T> constexpr T max(set<T> const& st) { assert(st.size()); return *prev(st.end()); }
template <class T> constexpr T min(multiset<T> const& st) { assert(st.size()); return *st.begin(); }
template <class T> constexpr T max(multiset<T> const& st) { assert(st.size()); return *prev(st.end()); }
constexpr ll max(signed x, ll y) { return max<ll>(x, y); }
constexpr ll max(ll x, signed y) { return max<ll>(x, y); }
constexpr ll min(signed x, ll y) { return min<ll>(x, y); }
constexpr ll min(ll x, signed y) { return min<ll>(x, y); }
template <class T> int sz(T const& x) { return x.size(); }
template <class C, class T>
int lbd(C const& v, T const& x) { return lower_bound(begin(v), end(v), x) - begin(v); }
template <class C, class T>
int ubd(C const& v, T const& x) { return upper_bound(begin(v), end(v), x) - begin(v); }
constexpr ll mod(ll x, ll m) { assert(m > 0); return (x %= m) < 0 ? x+m : x; }
constexpr ll div_floor(ll x, ll y) { assert(y != 0); return x/y - ((x^y) < 0 and x%y); }
constexpr ll div_ceil(ll x, ll y) { assert(y != 0); return x/y + ((x^y) > 0 and x%y); }
constexpr int dx[] = { 1, 0, -1, 0, 1, -1, -1, 1 };
constexpr int dy[] = { 0, 1, 0, -1, 1, 1, -1, -1 };
template <class Comp> vector<int> iota(int n, Comp comp) {
    vector<int> idx(n);
    iota(begin(idx), end(idx), 0);
    stable_sort(begin(idx), end(idx), comp);
    return idx;
}
constexpr int popcnt(ll x) { return __builtin_popcountll(x); }
mt19937_64 seed_{random_device{}()};
template <class Int> Int rand(Int a, Int b) { return uniform_int_distribution<Int>(a, b)(seed_); }
i64 irand(i64 a, i64 b) { return rand<i64>(a, b); } // [a, b]
u64 urand(u64 a, u64 b) { return rand<u64>(a, b); } //
template <class It> void shuffle(It l, It r) { shuffle(l, r, seed_); }
template <class V> V &operator--(V &v) { for (auto &x : v) --x; return v; }
template <class V> V &operator++(V &v) { for (auto &x : v) ++x; return v; }
bool next_product(vector<int> &v, int m) {
    repR (i, v.size()) if (++v[i] < m) return true; else v[i] = 0;
    return false;
}
bool next_product(vector<int> &v, vector<int> const& s) {
    repR (i, v.size()) if (++v[i] < s[i]) return true; else v[i] = 0;
    return false;
}
template <class Vec> int sort_unique(Vec &v) {
    sort(begin(v), end(v));
    v.erase(unique(begin(v), end(v)), end(v));
    return v.size();
}
template <class Vec, class Comp> int sort_unique(Vec &v, Comp comp) {
    sort(begin(v), end(v), comp);
    v.erase(unique(begin(v), end(v)), end(v));
    return v.size();
}
template <class It> auto prefix_sum(It l, It r) {
    vector<typename It::value_type> s = { 0 };
    while (l != r) s.emplace_back(s.back() + *l++);
    return s;
}
template <class It> auto suffix_sum(It l, It r) {
    vector<typename It::value_type> s = { 0 };
    while (l != r) s.emplace_back(*--r + s.back());
    reverse(s.begin(), s.end());
    return s;
}
template <class T> T pop(vector<T> &a) { auto x = a.back(); a.pop_back(); return x; }
template <class T> T pop_back(vector<T> &a) { auto x = a.back(); a.pop_back(); return x; }
template <class T, class V, class C> T pop(priority_queue<T, V, C> &a) { auto x = a.top(); a.pop(); return x; }
template <class T> T pop(queue<T> &a) { auto x = a.front(); a.pop(); return x; }
template <class T> T pop_front(deque<T> &a) { auto x = a.front(); a.pop_front(); return x; }
template <class T> T pop_back(deque<T> &a) { auto x = a.back(); a.pop_back(); return x; }
template <class T> T pop_front(set<T> &a) { auto x = *a.begin(); a.erase(a.begin()); return x; }
template <class T> T pop_back(set<T> &a) { auto it = prev(a.end()); auto x = *it; a.erase(it); return x; }
template <class T> T pop_front(multiset<T> &a) { auto it = a.begin(); auto x = *it; a.erase(it); return x; }
template <class T> T pop_back(multiset<T> &a) { auto it = prev(a.end()); auto x = *it; a.erase(it); return x; }
// <<<
// >>> hash value

struct Hash {
    using u64 = uint64_t;
    using i32 = int32_t;
    struct mint;
    Hash() {};
    Hash(mint val, i32 len) : val(val), len(len) {}
    // do not use for `const char*'
    template <class Str, class = typename Str::iterator>
    Hash(Str const& s) : val(0), len(0) {
        for (auto c : s) *this = *this + Hash(c);
    }
    template <class Int, enable_if_t<is_integral_v<Int>, int> = 0>
    Hash(Int x) : val(x ^ pow(1).x), len(1) {}
    Hash operator+(Hash const& r) const {
        return { val * pow(r.len) + r.val, len + r.len };
    }
    Hash operator-() const { return { - pow(-len) * val, -len }; }
    Hash operator-(Hash const& r) const { return *this + (-r); }
    bool operator==(Hash const& r) const { return val == r.val && len == r.len; }
    bool operator!=(Hash const& r) const { return !(*this == r); }
    bool operator<(Hash const& r) const {
        return val.x == r.val.x ? len < r.len : val.x < r.val.x;
    }

    static constexpr u64 mod = (1ull<<61) - 1;
    struct mint {
        u64 x;
        constexpr mint(u64 x = 0) : x(x) {
            x = (x & mod) + (x >> 61);
            x = (x < mod ? x : x-mod);
        }
        constexpr bool operator==(mint const& r) const { return x == r.x; }
        constexpr bool operator!=(mint const& r) const { return x != r.x; }
        constexpr mint operator+() const { return *this; }
        constexpr mint operator-() const { return mint()-*this; }
        constexpr mint& operator+=(mint const& r) { x += r.x; x = (x < mod ? x : x-mod); return *this; }
        constexpr mint& operator-=(mint const& r) { x += mod-r.x; x = (x < mod ? x : x-mod); return *this; }
        constexpr mint& operator*=(mint r) { x = mul(x, r.x); return *this; }
        constexpr mint operator+(mint r) const { return mint(*this) += r; }
        constexpr mint operator-(mint r) const { return mint(*this) -= r; }
        constexpr mint operator*(mint r) const { return mint(*this) *= r; }
#ifdef LOCAL
        string to_s(mint x) { return to_s(x.x); }
#endif
    };

    mint val = 0;
    i32 len = 0;

    static mint pow(int n) {
        static u64 B = 0, iB = 1;
        if (B == 0) {
            mt19937_64 mt(random_device{}());
            B = uniform_int_distribution<u64>(300, mod-300)(mt);
#ifdef LOCAL
            B = 10000;
#endif
            u64 k = mod - 2, p = B;
            for ( ; k; k >>= 1, p = mul(p, p)) if (k & 1) iB = mul(iB, p);
        }
        if (n >= 0) {
            static vector<u64> pow(1, 1);
            if (n >= (int)pow.size()) {
                int m = pow.size();
                pow.resize(n + 1);
                for (int i = m; i < n + 1; i++) pow[i] = mul(pow[i-1], B);
            }
            return pow[n];
        } else {
            static vector<u64> pow(1, 1);
            n = -n;
            if (n >= (int)pow.size()) {
                int m = pow.size();
                pow.resize(n + 1);
                for (int i = m; i < n + 1; i++) pow[i] = mul(pow[i-1], iB);
            }
            return pow[n];
        }
    }
    static constexpr u64 mul(u64 a, u64 b) {
        auto val = __uint128_t(a) * b;
        val = (val & mod) + (val >> 61);
        return val >= mod ? val - mod : val;
        // constexpr u64 mask30 = (1ull << 30) - 1;
        // constexpr u64 mask31 = (1ull << 31) - 1;
        // u64 au = a >> 31, ad = a & mask31;
        // u64 bu = b >> 31, bd = b & mask31;
        // u64 mid = ad * bu + au * bd, midu = mid >> 30, midd = mid & mask30;
        // u64 val = au * bu * 2 + midu + (midd << 31) + ad * bd;
        // val = (val & mod) + (val >> 61);
        // return val >= mod ? val - mod : val;
    }
#ifdef LOCAL
    friend string to_s(Hash const& hash) {
        return to_s(make_pair(hash.val.x, hash.len));
    }
#endif
};

// <<<

int32_t main() {
    int n, k; cin >> n >> k;
    vector<int> a(n), b(n); cin >> a >> b;

    if (a == b) quit("Yes");
    if (k > n) quit("No");
    if (k == n) {
        reverse(all(a));
        quit(a == b ? "Yes" : "No");
    } else if (k == n-1) {
        rep (i, n) a.eb(a[i]);
        vector<Hash> sub(a.size() + 1);
        repR (i, a.size()) sub[i] = Hash(a[i]) + sub[i+1];

        bool ok = false;
        rep (_, 2) {
            reverse(all(b));
            Hash hash_b;
            rep (i, n) hash_b = hash_b + Hash(b[i]);
            rep (i, n) if (sub[i]-sub[i+n] == hash_b) ok = true;
        }
        cout << (ok ? "Yes" : "No") << '\n';
    } else {
        sort(all(a));
        sort(all(b));
        cout << (a == b ? "Yes" : "No") << '\n';
    }

}

yukicoder

結果

テストケース

ソースコード