結果
問題 | No.2529 Treasure Hunter |
ユーザー | syndro_6 |
提出日時 | 2023-11-03 22:11:09 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 25 ms / 2,000 ms |
コード長 | 4,717 bytes |
コンパイル時間 | 2,202 ms |
コンパイル使用メモリ | 207,100 KB |
実行使用メモリ | 14,184 KB |
最終ジャッジ日時 | 2024-09-25 20:36:16 |
合計ジャッジ時間 | 2,992 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 3 ms
5,248 KB |
testcase_01 | AC | 25 ms
5,376 KB |
testcase_02 | AC | 16 ms
5,376 KB |
testcase_03 | AC | 17 ms
5,376 KB |
testcase_04 | AC | 17 ms
5,376 KB |
testcase_05 | AC | 17 ms
5,376 KB |
testcase_06 | AC | 16 ms
5,376 KB |
testcase_07 | AC | 16 ms
5,376 KB |
testcase_08 | AC | 16 ms
5,376 KB |
testcase_09 | AC | 15 ms
5,376 KB |
testcase_10 | AC | 16 ms
5,376 KB |
testcase_11 | AC | 16 ms
5,376 KB |
testcase_12 | AC | 18 ms
13,604 KB |
testcase_13 | AC | 18 ms
13,952 KB |
testcase_14 | AC | 18 ms
13,824 KB |
testcase_15 | AC | 18 ms
13,824 KB |
testcase_16 | AC | 19 ms
14,008 KB |
testcase_17 | AC | 18 ms
13,952 KB |
testcase_18 | AC | 18 ms
13,804 KB |
testcase_19 | AC | 18 ms
13,972 KB |
testcase_20 | AC | 18 ms
13,896 KB |
testcase_21 | AC | 19 ms
14,080 KB |
testcase_22 | AC | 20 ms
14,184 KB |
ソースコード
// (◕ᴗ◕✿) #include <bits/stdc++.h> #define rep(i, n) for (ll i = 0; i < (n); i++) #define srep(i, s, n) for (ll i = s; i < (n); i++) #define len(x) ((int)(x).size()) #define all(x) (x).begin(), (x).end() using namespace std; template<typename T> using vc = vector<T>; template<typename T> using vv = vc<vc<T>>; template<typename T> using vvv = vv<vc<T>>; using vi = vc<int>;using vvi = vv<int>; using vvvi = vv<vi>; using ll = long long;using vl = vc<ll>;using vvl = vv<ll>; using vvvl = vv<vl>; using ld = long double; using vld = vc<ld>; using vvld = vc<vld>; using vvvld = vc<vvld>; using uint = unsigned int; using ull = unsigned long long; const ld pi = 3.141592653589793; const int inf = 0x3f3f3f3f; const ll INF = 0x3f3f3f3f3f3f3f3f; // const ll mod = 1000000007; const ll mod = 998244353; inline bool inside(long long y, long long x, long long H, long long W) {return 0 <= (y) and (y) < (H) and 0 <= (x) and (x) < (W); } #define debug(var) do{std::cout << #var << " : \n";view(var);}while(0) template<typename T> void view(T e){cout << e << endl;} template<typename T> void view(const vc<T>& v){for(const auto& e : v){ cout << e << " "; } cout << endl;} template<typename T> void view(const vv<T>& vv){ for(const auto& v : vv){ view(v); } } struct modint { ll val; using mint = modint; modint() {}; modint(ll v) { if (0 <= v && v < mod) val = v; else{ v %= mod; if (v < 0) v += mod; val = v; } } mint operator++(int){ val++; if (val == mod) val = 0; return *this; } mint operator--(int){ if (val == 0) val = mod; val--; return *this; } mint& operator+=(const mint& v){ val += v.val; if (val > mod) val -= mod; return *this; } friend mint operator+(const mint& u, const mint& v){ return mint(u) += v; } mint& operator-=(const mint& v){ val -= v.val; if (val < 0) val += mod; return *this; } friend mint operator-(const mint& u, const mint& v){ return mint(u) -= v; } mint& operator*=(const mint& v){ val *= v.val; if (val > mod) val %= mod; return *this; } friend mint operator*(const mint& u, const mint& v){ return mint(u) *= v; } mint pow(ll n){ mint a = *this, ret = 1; while (n > 0){ if (n & 1) ret *= a; a *= a; n >>= 1; } return ret; } mint operator/=(const mint& v){ val *= mint(v).pow(mod - 2).val; if (val > mod) val %= mod; return *this; } friend mint operator/(const mint& u, const mint& v){ return mint(u) /= v; } friend bool operator==(const mint& u, const mint& v){ return u.val == v.val; } friend bool operator!=(const mint& u, const mint& v){ return u.val != v.val; } friend bool operator>(const mint& u, const mint& v){ return u.val > v.val; } friend bool operator<(const mint& u, const mint& v){ return u.val < v.val; } }; using mint = modint; struct Binoms { public : Binoms(int n){ fact = vc<mint>(1, 1); inv_fact = vc<mint>(1, 1); update(n); }; void update(int n){ if (sz >= n) return; fact.resize(n + 1, 1); inv_fact.resize(n + 1, 1); for (int i = sz; i < n; i++) fact[i + 1] = fact[i] * (i + 1); inv_fact[n] = 1 / fact[n]; for (int i = n - 1; i >= sz + 1; i--) inv_fact[i] = inv_fact[i + 1] * (i + 1); sz = n; return; } mint C(int n, int k){ if (sz < n) update(n); return fact[n] * inv_fact[n - k] * inv_fact[k]; } mint fac(int n){ if (sz < n) update(n); return fact[n]; } private : int sz = 0; vc<mint> fact, inv_fact; }; int main(){ int T; cin >> T; while (T--){ ll N, M; cin >> N >> M; vv<mint> dp(M + 1, vc<mint>(3, 0)); vv<mint> to(3, vc<mint>(3, 0)); dp[0][0] = 1; to[0][0] = 1; to[0][1] = N; to[0][2] = (N <= 3 ? 0 : N * (N - 1) / 2 - N); to[1][0] = 1; to[1][1] = N - 1; to[1][2] = (N <= 3 ? 0 : N * (N - 1) / 2 - 2 * N + 3); to[2][0] = 1; to[2][1] = N - 2; to[2][2] = N * (N - 1) / 2 - 3 * N + 7; rep(i, M) rep(j, 3) rep(k, 3){ dp[i + 1][k] += dp[i][j] * to[j][k]; } mint ret = dp[M][0] + dp[M][1] + dp[M][2]; cout << ret.val << endl; } }