結果

問題 No.2561 みんな大好きmod 998
ユーザー shogo314shogo314
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 239 ms / 4,000 ms
コード長 6,576 bytes
コンパイル時間 3,091 ms
コンパイル使用メモリ 259,956 KB
実行使用メモリ 5,376 KB
最終ジャッジ日時 2024-09-26 18:45:56
合計ジャッジ時間 7,281 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge1
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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 10 ms
5,376 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 239 ms
5,376 KB
testcase_04 AC 221 ms
5,376 KB
testcase_05 AC 228 ms
5,376 KB
testcase_06 AC 226 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 36 ms
5,376 KB
testcase_12 AC 1 ms
5,376 KB
testcase_13 AC 2 ms
5,376 KB
testcase_14 AC 2 ms
5,376 KB
testcase_15 AC 226 ms
5,376 KB
testcase_16 AC 2 ms
5,376 KB
testcase_17 AC 2 ms
5,376 KB
testcase_18 AC 1 ms
5,376 KB
testcase_19 AC 160 ms
5,376 KB
testcase_20 AC 2 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 1 ms
5,376 KB
testcase_25 AC 2 ms
5,376 KB
testcase_26 AC 48 ms
5,376 KB
testcase_27 AC 220 ms
5,376 KB
testcase_28 AC 62 ms
5,376 KB
testcase_29 AC 17 ms
5,376 KB
testcase_30 AC 50 ms
5,376 KB
testcase_31 AC 112 ms
5,376 KB
testcase_32 AC 32 ms
5,376 KB
testcase_33 AC 16 ms
5,376 KB
testcase_34 AC 223 ms
5,376 KB
testcase_35 AC 17 ms
5,376 KB
testcase_36 AC 17 ms
5,376 KB
testcase_37 AC 9 ms
5,376 KB
testcase_38 AC 36 ms
5,376 KB
testcase_39 AC 51 ms
5,376 KB
testcase_40 AC 48 ms
5,376 KB
testcase_41 AC 34 ms
5,376 KB
testcase_42 AC 62 ms
5,376 KB
testcase_43 AC 8 ms
5,376 KB
testcase_44 AC 25 ms
5,376 KB
testcase_45 AC 159 ms
5,376 KB
testcase_46 AC 23 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 # 

#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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