#934545 (C++23) No.2561 みんな大好きmod 998

提出ソース

結果

問題	No.2561 みんな大好きmod 998
ユーザー	shogo314
提出日時	2023-12-02 15:29:09
言語	C++23 (gcc 12.3.0 + boost 1.83.0)
結果	AC
実行時間	243 ms / 4,000 ms
コード長	6,576 bytes
コンパイル時間	3,305 ms
コンパイル使用メモリ	259,968 KB
実行使用メモリ	6,548 KB
最終ジャッジ日時	2023-12-02 15:29:19
合計ジャッジ時間	7,721 ms
ジャッジサーバーID （参考情報）	judge11 / judge12

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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 6,548 KB
testcase_01	AC	10 ms 6,548 KB
testcase_02	AC	2 ms 6,548 KB
testcase_03	AC	240 ms 6,548 KB
testcase_04	AC	243 ms 6,548 KB
testcase_05	AC	240 ms 6,548 KB
testcase_06	AC	239 ms 6,548 KB
testcase_07	AC	2 ms 6,548 KB
testcase_08	AC	2 ms 6,548 KB
testcase_09	AC	2 ms 6,548 KB
testcase_10	AC	2 ms 6,548 KB
testcase_11	AC	38 ms 6,548 KB
testcase_12	AC	2 ms 6,548 KB
testcase_13	AC	2 ms 6,548 KB
testcase_14	AC	2 ms 6,548 KB
testcase_15	AC	240 ms 6,548 KB
testcase_16	AC	2 ms 6,548 KB
testcase_17	AC	2 ms 6,548 KB
testcase_18	AC	2 ms 6,548 KB
testcase_19	AC	172 ms 6,548 KB
testcase_20	AC	2 ms 6,548 KB
testcase_21	AC	1 ms 6,548 KB
testcase_22	AC	2 ms 6,548 KB
testcase_23	AC	2 ms 6,548 KB
testcase_24	AC	2 ms 6,548 KB
testcase_25	AC	2 ms 6,548 KB
testcase_26	AC	52 ms 6,548 KB
testcase_27	AC	241 ms 6,548 KB
testcase_28	AC	69 ms 6,548 KB
testcase_29	AC	19 ms 6,548 KB
testcase_30	AC	54 ms 6,548 KB
testcase_31	AC	121 ms 6,548 KB
testcase_32	AC	34 ms 6,548 KB
testcase_33	AC	19 ms 6,548 KB
testcase_34	AC	240 ms 6,548 KB
testcase_35	AC	19 ms 6,548 KB
testcase_36	AC	19 ms 6,548 KB
testcase_37	AC	9 ms 6,548 KB
testcase_38	AC	38 ms 6,548 KB
testcase_39	AC	54 ms 6,548 KB
testcase_40	AC	54 ms 6,548 KB
testcase_41	AC	38 ms 6,548 KB
testcase_42	AC	69 ms 6,548 KB
testcase_43	AC	9 ms 6,548 KB
testcase_44	AC	27 ms 6,548 KB
testcase_45	AC	173 ms 6,548 KB
testcase_46	AC	25 ms 6,548 KB

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ソースコード

raw source code

#line 2 "/home/shogo314/cpp_include/ou-library/io.hpp"
/**
 * @file io.hpp
 * @brief 空白区切り出力、iostreamのオーバーロード
 */

#include <array>
#include <iostream>
#include <utility>
#include <tuple>
#include <vector>

namespace tuple_io {
    template <typename Tuple, size_t I, typename CharT, typename Traits>
    std::basic_istream<CharT, Traits>& read_tuple(std::basic_istream<CharT, Traits>& is, Tuple& t) {
        is >> std::get<I>(t);
        if constexpr (I + 1 < std::tuple_size_v<Tuple>) {
            return read_tuple<Tuple, I + 1>(is, t);
        }
        return is;
    }
    template <typename Tuple, size_t I, typename CharT, typename Traits>
    std::basic_ostream<CharT, Traits>& write_tuple(std::basic_ostream<CharT, Traits>& os, const Tuple& t) {
        os << std::get<I>(t);
        if constexpr (I + 1 < std::tuple_size_v<Tuple>) {
            os << CharT(' ');
            return write_tuple<Tuple, I + 1>(os, t);
        }
        return os;
    }
};

template <typename T1, typename T2, typename CharT, typename Traits>
std::basic_istream<CharT, Traits>& operator>>(std::basic_istream<CharT, Traits>& is, std::pair<T1, T2>& p) {
    is >> p.first >> p.second;
    return is;
}
template <typename... Types, typename CharT, typename Traits>
std::basic_istream<CharT, Traits>& operator>>(std::basic_istream<CharT, Traits>& is, std::tuple<Types...>& p) {
    return tuple_io::read_tuple<std::tuple<Types...>, 0>(is, p);
}
template <typename T, size_t N, typename CharT, typename Traits>
std::basic_istream<CharT, Traits>& operator>>(std::basic_istream<CharT, Traits>& is, std::array<T, N>& a) {
    for(auto& e : a) is >> e;
    return is;
}
template <typename T, typename CharT, typename Traits>
std::basic_istream<CharT, Traits>& operator>>(std::basic_istream<CharT, Traits>& is, std::vector<T>& v) {
    for(auto& e : v) is >> e;
    return is;
}

template <typename T1, typename T2, typename CharT, typename Traits>
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, const std::pair<T1, T2>& p) {
    os << p.first << CharT(' ') << p.second;
    return os;
}
template <typename... Types, typename CharT, typename Traits>
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, const std::tuple<Types...>& p) {
    return tuple_io::write_tuple<std::tuple<Types...>, 0>(os, p);
}
template <typename T, size_t N, typename CharT, typename Traits>
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, const std::array<T, N>& a) {
    for(size_t i = 0; i < N; ++i) {
        if(i) os << CharT(' ');
        os << a[i];
    }
    return os;
}
template <typename T, typename CharT, typename Traits>
std::basic_ostream<CharT, Traits>& operator<<(std::basic_ostream<CharT, Traits>& os, const std::vector<T>& v) {
    for(size_t i = 0; i < v.size(); ++i) {
        if(i) os << CharT(' ');
        os << v[i];
    }
    return os;
}

/**
 * @brief 空行出力
 */
void print() { std::cout << '\n'; }
/**
 * @brief 出力して改行
 * 
 * @tparam T 型
 * @param x 出力する値
 */
template <typename T>
void print(const T& x) { std::cout << x << '\n'; }
/**
 * @brief 空白区切りで出力して改行
 * 
 * @tparam T 1つ目の要素の型
 * @tparam Tail 2つ目以降の要素の型
 * @param x 1つ目の要素
 * @param tail 2つ目以降の要素
 */
template <typename T, typename... Tail>
void print(const T& x, const Tail&... tail) {
    std::cout << x << ' ';
    print(tail...);
}
#line 1 "/home/shogo314/cpp_include/sh-library/base.hpp"
#include <bits/stdc++.h>

#pragma GCC target("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")

using namespace std;
using ll = long long;
using str = string;
using pl = pair<ll, ll>;
template <typename T>
using ml = map<ll, T>;
using mll = map<ll, ll>;
using sl = set<ll>;
using ld = long double;
using pd = pair<ld, ld>;
template <typename T>
using vec = vector<T>;
template <typename T>
using vv = vector<vector<T>>;
template <typename T>
using vvv = vector<vector<vector<T>>>;
template <typename T1, typename T2>
using vp = vector<pair<T1, T2>>;
using vl = vec<ll>;
using vvl = vv<ll>;
using vs = vec<str>;
using vc = vec<char>;
using vpl = vec<pl>;
using spl = set<pl>;
using vd = vec<ld>;
using vpd = vec<pd>;
template <typename T, int N>
using ary = array<T, N>;
template <int N>
using al = array<ll, N>;
template <int N1, int N2>
using aal = array<array<ll, N2>, N1>;
template <int N>
using val = vec<al<N>>;

#define all(obj) (obj).begin(), (obj).end()

#define reps(i, a, n) for (ll i = (a); i < ll(n); i++)
#define rep(i, n) reps(i, 0, (n))
#define rrep(i, n) reps(i, 1, (n) + 1)
#define repds(i, a, n) for (ll i = ((n) - 1); i >= (a); i--)
#define repd(i, n) repds(i, 0, (n))
#define rrepd(i, n) repds(i, 1, (n) + 1)
#define rep2(i, j, x, y) rep(i, x) rep(j, y)

template <typename T1, typename T2>
inline bool chmin(T1 &a, T2 b) {
    if (a > b) {
        a = b;
        return true;
    }
    return false;
}

template <typename T1, typename T2>
inline bool chmax(T1 &a, T2 b) {
    if (a < b) {
        a = b;
        return true;
    }
    return false;
}

#define LL(x) ll x;cin >> x;
#define VL(a,n) vl a(n);cin >> a;
#define VS(a,n) vs a(n);cin >> a;
#define STR(s) str s;cin >> s;
#define VPL(a,n) vpl a(n);cin >> a;
#define VAL(a,n,k) val<k> a(n);cin >> a;
#line 3 "main.cpp"

template <typename T>
bool next_combination(const T first, const T last, int k) {
    const T subset = first + k;
    // empty container | k = 0 | k == n
    if (first == last || first == subset || last == subset) {
        return false;
    }
    T src = subset;
    while (first != src) {
        src--;
        if (*src < *(last - 1)) {
            T dest = subset;
            while (*src >= *dest) {
                dest++;
            }
            iter_swap(src, dest);
            rotate(src + 1, dest + 1, last);
            rotate(subset, subset + (last - dest) - 1, last);
            return true;
        }
    }
    // restore
    rotate(first, subset, last);
    return false;
}

void solve() {
    LL(N);
    LL(K);
    VL(A, N);
    vl c(N);
    rep(i, N) c[i] = i;
    ll ans = 0;
    do {
        ll s1 = 0, s2 = 0;
        rep(i, K) {
            s1 += A[c[i]];
            s2 += A[c[i]];
            s1 %= 998;
            s2 %= 998244353;
        }
        if (s2 <= s1) ans++;
    } while (next_combination(all(c), K));
    ans %= 998;
    print(ans);
}

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    solve();
}

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結果

テストケース

ソースコード