結果

問題 No.2528 pop_(backfront or not)
ユーザー cutmdocutmdo
提出日時 2023-11-03 21:54:08
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 293 ms / 2,000 ms
コード長 4,109 bytes
コンパイル時間 3,859 ms
コンパイル使用メモリ 262,996 KB
実行使用メモリ 65,920 KB
最終ジャッジ日時 2024-09-25 20:06:27
合計ジャッジ時間 5,679 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge1
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
6,812 KB
testcase_01 AC 2 ms
6,816 KB
testcase_02 AC 2 ms
6,816 KB
testcase_03 AC 2 ms
6,944 KB
testcase_04 AC 1 ms
6,940 KB
testcase_05 AC 3 ms
6,940 KB
testcase_06 AC 3 ms
6,944 KB
testcase_07 AC 6 ms
6,940 KB
testcase_08 AC 8 ms
6,944 KB
testcase_09 AC 20 ms
7,936 KB
testcase_10 AC 67 ms
18,688 KB
testcase_11 AC 68 ms
19,712 KB
testcase_12 AC 102 ms
27,264 KB
testcase_13 AC 111 ms
29,824 KB
testcase_14 AC 144 ms
35,968 KB
testcase_15 AC 217 ms
54,272 KB
testcase_16 AC 283 ms
65,920 KB
testcase_17 AC 279 ms
65,792 KB
testcase_18 AC 293 ms
65,920 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 # 

//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,avx512f")
#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <iostream>
#include <iomanip>
#include <string>
#include <cmath>
#include <algorithm>
#include <vector>
#include <set>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <stack>
#include <queue>
#include <bitset>
#include <numeric>
#include <cassert>
#include <memory>
#include <random>
#include <functional>
#include <complex>
#include <immintrin.h>
#include <stdexcept>
#ifdef DEBUG
#include "./CompetitiveProgrammingCpp/Utils/debug.hpp"
#include "./CompetitiveProgrammingCpp/Utils/Timer.hpp"
#include "./CompetitiveProgrammingCpp/Utils/sample.hpp"
#else
#define dump(...)
template<class T>constexpr inline auto d_val(T a, T b) { return a; }
#endif

/* macro */
#define FOR(i, b, e) for(ll i = (ll)(b); i < (ll)(e); ++i)
#define RFOR(i, b, e) for(ll i = (ll)((e)-1); i >= (ll)(b); --i)
#define REP(i, n) FOR(i, 0, (n))
#define RREP(i, n) RFOR(i, 0, (n))
#define REPC(x,c) for(const auto& x:(c))
#define REPI2(it,b,e) for(auto it = (b); it != (e); ++it)
#define REPI(it,c) REPI2(it, (c).begin(), (c).end())
#define RREPI(it,c) REPI2(it, (c).rbegin(), (c).rend())
#define REPI_ERACE2(it, b, e) for(auto it = (b); it != (e);)
#define REPI_ERACE(it, c) REPI_ERACE2(it, (c).begin(), (c).end())
#define ALL(x) (x).begin(),(x).end()
/* macro func */
template<class T>
inline auto sort(T& t) { std::sort(ALL(t)); }
template<class T>
inline auto rsort(T& t) { std::sort((t).rbegin(), (t).rend()); }
template<class T, class S>
inline auto chmax(T& t, const S& s) { if(s > t) { t = s; return true; } return false; }
template<class T, class S>
inline auto chmin(T& t, const S& s) { if(s < t) { t = s; return true; } return false; }
inline auto BR() { std::cout << "\n"; }

/* type define */
using ll = long long;
template<class T>
using V = std::vector<T>;
using VS = V<std::string>;
using VL = V<ll>;
using VVL = V<VL>;
template<class T = ll, class U = T>
using P = std::pair<T, U>;
using PAIR = P<ll>;

/* using std */
using std::cout;
using std::cin;
using std::cerr;
constexpr char endl = '\n';

/* Initial processing  */
struct Preprocessing { Preprocessing() { std::cin.tie(0); std::ios::sync_with_stdio(0); }; }_Preprocessing;

/* define hash */
constexpr unsigned int static_random() { return 1u * __TIME__[0] * __TIME__[1] * __TIME__[3] * __TIME__[4] * __TIME__[6] * __TIME__[7]; }
template<class T> struct Hash { auto operator()(T x) const { return std::hash<T>()(x) ^ static_random(); } };
template<> struct Hash<std::pair<int, int>> { auto operator()(const std::pair<int, int>& x) const { return Hash<long long>()(x.first << 31 | x.second); } };

/* input */
template<class T> std::istream& operator >> (std::istream& is, std::vector<T>& vec) { for(T& x : vec) is >> x; return is; }

/* constant value */
// constexpr ll MOD = 1000000007;
constexpr ll MOD = 998244353;

//=============================================================================================

auto Y = [](auto f) {
    return [=](auto&&... args) {
        return f(f, std::forward<decltype(args)>(args)...);
    };
};

signed main() {
    ll n;
    cin >> n;

    ll size = (n << 1) + 1;
    VVL dp(n, VL(size, -1));
    auto solve = Y([&](auto&& self, ll i, ll j) -> ll {
        if(i == n) { return j == 0; }
        if(dp[i][j] > 0) { return dp[i][j]; }
        ll d = size - (i << 1);
        ll l = j - 1;
        ll r = d - j - 2;
        ll ret = 0;
        // cout << i << " " << j << ": " << l << " " << r << " " << d << endl;
        if(j != 0 && j != d - 1) { ret += self(self, i + 1, j - 1); }
        if(l >= 1 && r >= 1) { ret += self(self, i + 1, j - 1) * l % MOD * r % MOD; }
        if(l >= 2) { ret += (l * (l - 1) / 2) % MOD * self(self, i + 1, j - 2) % MOD; }
        if(r >= 2) { ret += (r * (r - 1) / 2) % MOD * self(self, i + 1, j) % MOD; }
        ret %= MOD;
        return dp[i][j] = ret;
    });
    REP(i, size) { cout << solve(0, i) << endl; }
}
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