結果

問題 No.2 素因数ゲーム
ユーザー xoke0114xoke0114
提出日時 2019-03-13 17:03:44
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 2 ms / 5,000 ms
コード長 7,370 bytes
コンパイル時間 1,643 ms
コンパイル使用メモリ 179,772 KB
実行使用メモリ 5,376 KB
最終ジャッジ日時 2024-06-08 00:56:47
合計ジャッジ時間 2,517 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
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 1 ms
5,376 KB
testcase_03 AC 2 ms
5,376 KB
testcase_04 AC 1 ms
5,376 KB
testcase_05 AC 2 ms
5,376 KB
testcase_06 AC 2 ms
5,376 KB
testcase_07 AC 1 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 1 ms
5,376 KB
testcase_12 AC 2 ms
5,376 KB
testcase_13 AC 1 ms
5,376 KB
testcase_14 AC 2 ms
5,376 KB
testcase_15 AC 2 ms
5,376 KB
testcase_16 AC 2 ms
5,376 KB
testcase_17 AC 1 ms
5,376 KB
testcase_18 AC 2 ms
5,376 KB
testcase_19 AC 2 ms
5,376 KB
testcase_20 AC 1 ms
5,376 KB
testcase_21 AC 2 ms
5,376 KB
testcase_22 AC 2 ms
5,376 KB
testcase_23 AC 2 ms
5,376 KB
testcase_24 AC 2 ms
5,376 KB
testcase_25 AC 2 ms
5,376 KB
testcase_26 AC 2 ms
5,376 KB
testcase_27 AC 2 ms
5,376 KB
testcase_28 AC 2 ms
5,376 KB
testcase_29 AC 2 ms
5,376 KB
testcase_30 AC 2 ms
5,376 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;

#define M_PI 3.14159265358979323846
using ull = unsigned long long;
using ll = long long;
#define endl "\n"

#define REP(i, n) for (ll i = 0; i < n; i++)
#define REPR(i, n) for (ll i = n; i >= 0; i--)
#define FOR(i, m, n) for (ll i = m; i < n; i++)
#define even(x) (x) % 2 == 0
#define odd(x) (x) % 2 != 0
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define pcnt __builtin_popcount
#define buli(x) __builtin_popcountll(x)
#define UNIQUE(v) v.erase(unique(v.begin(), v.end()), v.end());
#define inll(x) ll x;cin>>x;
#define INIT() cin.tie(0);ios::sync_with_stdio(0);cout<<fixed<<setprecision(20)

// these functions return the position of result of Binary Search.
#define LB(s, t, x) (int)(lower_bound(s, t, x) - s)
#define UB(s, t, x) (int)(upper_bound(s, t, x) - s)

namespace {
    const ll MOD_CONST = (ll)(1e9 + 7);
    const ll CFM = (ll)(998244353);
    ll qp(ll a, ll b, int mo)
    {
        ll ans = 1;
        do
        {
            if (b & 1)
                ans = 1ll * ans * a % mo;
            a = 1ll * a * a % mo;
        } while (b >>= 1);
        return ans;
    }
    ll gcd(ll a, ll b) { return b ? gcd(b, a % b) : a; }
    ll lcm(ll a, ll b)
    {
        ll temp = gcd(a, b);
        return temp ? (a / temp * b) : 0;
    }
    int mDays[] = {31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
    int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
    int dx8[] = {1, -1, 0, 0, 1, 1, -1, -1}, dy8[] = {0, 0, -1, 1, -1, 1, -1, 1};

    template <typename F>
    class
    #if defined(__has_cpp_attribute) && __has_cpp_attribute(nodiscard)
        [[nodiscard]]
    #elif defined(__GNUC__) && __GNUC_PREREQ(3, 4)
        __attribute__((warn_unused_result))
    #endif // defined(__has_cpp_attribute) && __has_cpp_attribute(nodiscard)
        FixPoint : F {
            public :
                explicit constexpr FixPoint(F &&f) noexcept : F(std::forward<F>(f)) {}

            template <typename... Args>
            constexpr decltype(auto)
            operator()(Args &&... args) const {
                return F::operator()(*this, std::forward<Args>(args)...);
    } // namespace
    }
    ; // class FixPoint
    template <typename F>
    static inline constexpr decltype(auto)
    makeFixPoint(F &&f) noexcept
    {
        return FixPoint<F>{std::forward<F>(f)};
    }

    template <typename T>
    vector<T> make_v(size_t a) { return vector<T>(a); }
    template <typename T, typename... Ts>
    auto make_v(size_t a, size_t b, Ts... ts) { return vector<decltype(make_v<T>(b, ts...))>(a, make_v<T>(b, ts...)); }
    template <typename T, typename V>
    typename enable_if<is_class<T>::value == 0>::type
    fill_v(T &t, const V &v) { t = v; }
    template <typename T, typename V>
    typename enable_if<is_class<T>::value != 0>::type
    fill_v(T &t, const V &v) { for (auto &e : t) fill_v(e, v); }

    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; }

    inline tuple<ll, ll> rotate45(tuple<ll, ll> point)
    {
        ll x = get<0>(point), y = get<1>(point);
        return tuple<ll, ll>(x + y, x - y);
    }
    inline bool rangeCheck2D(int nx, int ny, int Width, int Height) { return nx >= 0 and nx < Width and ny >= 0 and ny < Height; }

    template <class T>
    ostream &operator<<(ostream &os, const vector<T> &v)
    {
        for (auto i = begin(v); i != end(v); ++i)
            os << *i << (i == end(v) - 1 ? "" : " ");
        return os;
    }
    template <class T>
    istream &operator>>(istream &is, vector<T> &v)
    {
        for (auto i = begin(v); i != end(v); ++i)
            is >> *i;
        return is;
    }

    template <typename T>
    void out(T o) { cout << o << endl; }
    template <typename T>
    void out(vector<T> &out)
    {
        REP(i, (int)out.size())
        {
            cout << out[i];
            if (i == (int)out.size() - 1)
                cout << endl;
            else
                cout << " ";
        }
    }
    template <typename T>
    void out(vector<vector<T>> o) { REP(i, o.size())
                                    out(o[i]); }
    ll i_query(ll x)
    {
        cout << "> " << x << endl;
        fflush(stdout);
        ll ret;
        cin >> ret;
        return ret;
    }
    ll i_query_2(ll i)
    {
        cout << "? " << i << endl;
        fflush(stdout);
        ll ret;
        cin >> ret;
        return ret;
    }
    void i_answer(ll ans, ll d)
    {
        cout << "! " << ans << " " << d << endl;
        fflush(stdout);
    }
} // namespace

// lambda expression
// auto f = [](int arg1, double arg2) { return ret; };
// lambda recursion
// auto result = makeFixPoint([&](auto rec, int pos, int v) -> int {
//	   rec(pos, v);
// })(0, 1);
// auto func = makeFixPoint([]() -> int {});
// int ret = func();

// tuple binding
// auto [x, y] = make_tuple(0, 0);

// for pair
// auto [a, b] = pair<int, int>({v1, v2});

// bitset<N> bs(ini_val); // N must be constant
// bs.reset(); // reset all

namespace PrimeLib {
    //* 素数判定 is_prime<unsigned>(N)
    template<typename T, std::enable_if_t<std::is_unsigned<T>::value, std::nullptr_t> = nullptr>
    bool is_prime(const T n) {
        if (n < 4) return n == 2 || n == 3;
        if (n % 2 == 0 || n % 3 == 0 || (n % 6 != 1 && n % 6 != 5)) return false;
        for (T i = 5; i * i <= n; i += 6) if (n % i == 0 || n % (i + 2) == 0) return false;
        return true;
    }
    //* 素数テーブル生成 エラトステネスの篩 10^7 => 1s
    //* 1e9を素因数分解したい時,sqrt(1e9)まで(31623程)を生成すればよい
    vector<ll> primeTable(ll n) {
        vector<bool> table(n - 1);
        vector<ll> ret;
        for (ll i = 0; i < n - 1; ++i) {
            if (table[i] == false) {
                ll num = i + 2;
                ret.push_back(i + 2);
                for (int j = i + num; j < n - 1; j += num)
                    table[j] = true;	
            }
        }
        return ret;
    }
    vector<pair<ll, ll>> factorize(ll n) {
        vector<pair<ll, ll>> ps;
        for (ll i = 2; i * i <= n; i++) {
            if (n % i == 0) {
                int cnt = 0;
                while (n % i == 0) {
                    n /= i;
                    cnt++;
                }
                ps.emplace_back(i, cnt);
            }
        }
        //assert(c == 1);
        // if c is still not 1, 
        // there's one prime num bigger than sqrt(N)
        if (n > 1)
            ps.emplace_back(n, 1);
        return ps;
    }
    // 約数列挙
    std::vector<ll> divisors(ll n) {
        std::vector<ll> ret;
        for(ll i=1 ; i*i<=n ; ++i)
        {
            if(n%i == 0)
            {
                ret.push_back(i);
                if(i!=1 && i*i!=n)
                {
                    ret.push_back(n/i);
                }
            }
        }
        if (n > 1) ret.push_back(n);
        sort(all(ret));
        return ret;
    }
}

int main(void)
{
    INIT(); // comment out for Interective Program

    inll(N);
    auto ps = PrimeLib::factorize(N);
    ll nim = 0;
    REP(i, ps.size()) {
        nim ^= ps[i].second;
    }
    if (nim == 0) out("Bob");
    else out("Alice");

    return 0;
}
//*/
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