結果

問題 No.1513 simple 門松列 problem
ユーザー fuppy_kyoprofuppy_kyopro
提出日時 2021-05-21 22:44:38
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 312 ms / 3,000 ms
コード長 7,926 bytes
コンパイル時間 2,571 ms
コンパイル使用メモリ 214,552 KB
実行使用メモリ 196,608 KB
最終ジャッジ日時 2024-10-10 09:27:58
合計ジャッジ時間 4,851 ms
ジャッジサーバーID
（参考情報） 		judge3 / judge2
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
6,820 KB
testcase_01 AC 1 ms
6,816 KB
testcase_02 AC 312 ms
196,608 KB
testcase_03 AC 2 ms
6,816 KB
testcase_04 AC 2 ms
6,816 KB
testcase_05 AC 2 ms
6,816 KB
testcase_06 AC 2 ms
6,820 KB
testcase_07 AC 2 ms
6,816 KB
testcase_08 AC 3 ms
6,820 KB
testcase_09 AC 2 ms
6,816 KB
testcase_10 AC 2 ms
6,820 KB
testcase_11 AC 2 ms
6,816 KB
testcase_12 AC 2 ms
6,820 KB
testcase_13 AC 1 ms
6,816 KB
testcase_14 AC 306 ms
192,896 KB
testcase_15 AC 302 ms
193,920 KB
testcase_16 AC 309 ms
195,712 KB
testcase_17 AC 200 ms
124,160 KB
testcase_18 AC 68 ms
44,288 KB
testcase_19 AC 7 ms
6,816 KB
testcase_20 AC 41 ms
28,160 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("avx2")
#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
//*/

#include <bits/stdc++.h>

// #include <atcoder/all>

using namespace std;
// using namespace atcoder;

#define DEBUG(x) cerr << #x << ": " << x << endl;
#define DEBUG_VEC(v)                                        \
    cerr << #v << ":";                                      \
    for (int iiiiiiii = 0; iiiiiiii < v.size(); iiiiiiii++) \
        cerr << " " << v[iiiiiiii];                         \
    cerr << endl;
#define DEBUG_MAT(v)                            \
    cerr << #v << endl;                         \
    for (int i = 0; i < v.size(); i++) {        \
        for (int j = 0; j < v[i].size(); j++) { \
            cerr << v[i][j] << " ";             \
        }                                       \
        cerr << endl;                           \
    }
typedef long long ll;
// #define int ll

#define vi vector<int>
#define vl vector<ll>
#define vii vector<vector<int>>
#define vll vector<vector<ll>>
#define vs vector<string>
#define pii pair<int, int>
#define pis pair<int, string>
#define psi pair<string, int>
#define pll pair<ll, ll>
template <class S, class T>
pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) {
    return pair<S, T>(s.first + t.first, s.second + t.second);
}
template <class S, class T>
pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); }
template <class S, class T>
ostream &operator<<(ostream &os, pair<S, T> p) {
    os << "(" << p.first << ", " << p.second << ")";
    return os;
}
#define X first
#define Y second
#define rep(i, n) for (int i = 0; i < (int)(n); i++)
#define rep1(i, n) for (int i = 1; i <= (int)(n); i++)
#define rrep(i, n) for (int i = (int)(n)-1; i >= 0; i--)
#define rrep1(i, n) for (int i = (int)(n); i > 0; i--)
#define REP(i, a, b) for (int i = a; i < b; i++)
#define in(x, a, b) (a <= x && x < b)
#define all(c) c.begin(), c.end()
void YES(bool t = true) {
    cout << (t ? "YES" : "NO") << endl;
}
void Yes(bool t = true) { cout << (t ? "Yes" : "No") << endl; }
void yes(bool t = true) { cout << (t ? "yes" : "no") << endl; }
void NO(bool t = true) { cout << (t ? "NO" : "YES") << endl; }
void No(bool t = true) { cout << (t ? "No" : "Yes") << endl; }
void no(bool t = true) { cout << (t ? "no" : "yes") << endl; }
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 (a > b) {
        a = b;
        return 1;
    }
    return 0;
}
#define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end());
const ll inf = 1000000001;
const ll INF = (ll)1e18 + 1;
const long double pi = 3.1415926535897932384626433832795028841971L;
int popcount(ll t) { return __builtin_popcountll(t); }
// int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1};
// int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 };
vi dx = {0, 1, 0, -1}, dy = {-1, 0, 1, 0};
// vi dx2 = { 1,1,0,-1,-1,-1,0,1 }, dy2 = { 0,1,1,1,0,-1,-1,-1 };
struct Setup_io {
    Setup_io() {
        ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
        cout << fixed << setprecision(25);
    }
} setup_io;
// const ll MOD = 1000000007;
const ll MOD = 998244353;
// #define mp make_pair
//#define endl '\n'

signed main() {
    int n, k;
    cin >> n >> k;
    vector<vll> dp(n + 1, vll(k, vl(k)));

    rep(i, k) rep(j, k) {
        if (i == j) continue;
        dp[2][i][j]++;
    }

    vector<vll> dpl(n + 1, vll(k, vl(k))), dpu(n + 1, vll(k, vl(k)));

    ll ans = 0;
    for (int i = 2; i < n; i++) {
        rep(j, k) {
            rep(l, k) {
                if (j > 0) {
                    dpl[i][j][l] = (dpl[i][j - 1][l] + dp[i][j - 1][l]) % MOD;
                }
            }
        }
        rrep(j, k) {
            rep(l, k) {
                if (j + 1 < k) {
                    dpu[i][j][l] = (dpu[i][j + 1][l] + dp[i][j + 1][l]) % MOD;
                }
            }
        }

        rep(l, k) {
            rep(x, k) {
                if (x == l) continue;
                if (l > x) {
                    (dp[i + 1][l][x] += dpl[i][l][l] - dp[i][x][l]) %= MOD;
                } else {
                    (dp[i + 1][l][x] += dpu[i][l][l] - dp[i][x][l]) %= MOD;
                }
            }
        }
    }

    ll ans1 = 0;
    rep(j, k) rep(l, k) ans1 += dp[n][j][l];
    ans1 %= MOD;
    cout << (ans1 + MOD) % MOD << " ";

    ll ans2 = 0;
    rep(i, n) {
        int l = i, r = n - 1 - i;
        for (int x = 0; x < k; x++) {
            // DEBUG(pii(i, x));
            // ue
            {
                ll addl = 0, addr = 0;
                if (l == 0) {
                    addl = 1;
                } else if (l == 1) {
                    addl = k - 1 - x;
                } else {
                    for (int u = x + 1; u < k; u++) {
                        addl += (dpl[l][u][u] - dp[l][x][u]);
                    }
                }
                addl %= MOD;

                if (r == 0) {
                    addr = 1;
                } else if (r == 1) {
                    addr = k - 1 - x;
                } else {
                    for (int u = x + 1; u < k; u++) {
                        addr += (dpl[r][u][u] - dp[r][x][u]);
                    }
                }
                addr %= MOD;

                ll kumi = addl % MOD * addr % MOD;
                for (int u = x + 1; u < k; u++) {
                    ll subl = 0, subr = 0;
                    if (l == 0)
                        subl = 0;
                    else if (l == 1)
                        subl = 1;
                    else {
                        subl = dpl[l][u][u] - dp[l][x][u];
                    }

                    if (r == 0)
                        subr = 0;
                    else if (r == 1)
                        subr = 1;
                    else {
                        subr = dpl[r][u][u] - dp[r][x][u];
                    }

                    kumi -= subl % MOD * subr % MOD;
                }
                kumi %= MOD;
                // DEBUG(kumi);
                ans2 += kumi * x % MOD;
            }

            {
                // sita
                ll addl = 0, addr = 0;
                if (l == 0) {
                    addl = 1;
                } else if (l == 1) {
                    addl = x;
                } else {
                    for (int u = x - 1; u >= 0; u--) {
                        addl += (dpu[l][u][u] - dp[l][x][u]);
                    }
                }
                addl %= MOD;

                if (r == 0) {
                    addr = 1;
                } else if (r == 1) {
                    addr = x;
                } else {
                    for (int u = x - 1; u >= 0; u--) {
                        addr += (dpu[r][u][u] - dp[r][x][u]);
                    }
                }
                addr %= MOD;

                ll kumi = addl % MOD * addr % MOD;
                for (int u = x - 1; u >= 0; u--) {
                    ll subl = 0, subr = 0;
                    if (l == 0)
                        subl = 0;
                    else if (l == 1)
                        subl = 1;
                    else {
                        subl = dpu[l][u][u] - dp[l][x][u];
                    }

                    if (r == 0)
                        subr = 0;
                    else if (r == 1)
                        subr = 1;
                    else {
                        subr = dpu[r][u][u] - dp[r][x][u];
                    }

                    kumi -= subl % MOD * subr % MOD;
                }
                kumi %= MOD;
                // DEBUG(kumi);
                ans2 += kumi * x % MOD;
            }
            // DEBUG(ans2);
        }
    }
    ans2 = (ans2 % MOD + MOD) % MOD;
    cout << ans2 << endl;
}
0