結果
問題 | No.1614 Majority Painting on Tree |
ユーザー | heno239 |
提出日時 | 2021-07-21 21:32:55 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 514 ms / 5,000 ms |
コード長 | 3,951 bytes |
コンパイル時間 | 1,999 ms |
コンパイル使用メモリ | 146,580 KB |
実行使用メモリ | 274,048 KB |
最終ジャッジ日時 | 2024-07-17 16:22:02 |
合計ジャッジ時間 | 16,913 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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 | 429 ms
273,988 KB |
testcase_01 | AC | 240 ms
273,920 KB |
testcase_02 | AC | 262 ms
273,920 KB |
testcase_03 | AC | 354 ms
273,920 KB |
testcase_04 | AC | 399 ms
273,792 KB |
testcase_05 | AC | 387 ms
273,920 KB |
testcase_06 | AC | 506 ms
273,988 KB |
testcase_07 | AC | 395 ms
273,920 KB |
testcase_08 | AC | 268 ms
273,920 KB |
testcase_09 | AC | 333 ms
273,920 KB |
testcase_10 | AC | 194 ms
273,920 KB |
testcase_11 | AC | 371 ms
273,988 KB |
testcase_12 | AC | 399 ms
274,048 KB |
testcase_13 | AC | 322 ms
273,920 KB |
testcase_14 | AC | 500 ms
273,920 KB |
testcase_15 | AC | 488 ms
273,920 KB |
testcase_16 | AC | 226 ms
273,920 KB |
testcase_17 | AC | 305 ms
273,920 KB |
testcase_18 | AC | 285 ms
274,048 KB |
testcase_19 | AC | 202 ms
273,860 KB |
testcase_20 | AC | 477 ms
274,048 KB |
testcase_21 | AC | 488 ms
273,920 KB |
testcase_22 | AC | 514 ms
273,920 KB |
testcase_23 | AC | 186 ms
273,864 KB |
testcase_24 | AC | 481 ms
273,992 KB |
testcase_25 | AC | 222 ms
273,988 KB |
testcase_26 | AC | 350 ms
273,920 KB |
testcase_27 | AC | 129 ms
273,856 KB |
testcase_28 | AC | 129 ms
273,792 KB |
testcase_29 | AC | 129 ms
273,792 KB |
testcase_30 | AC | 131 ms
273,732 KB |
testcase_31 | AC | 130 ms
273,792 KB |
testcase_32 | AC | 129 ms
273,736 KB |
testcase_33 | AC | 130 ms
273,792 KB |
testcase_34 | AC | 129 ms
273,920 KB |
testcase_35 | AC | 129 ms
273,664 KB |
testcase_36 | AC | 128 ms
273,536 KB |
testcase_37 | AC | 129 ms
273,792 KB |
testcase_38 | AC | 130 ms
273,792 KB |
testcase_39 | AC | 128 ms
273,664 KB |
testcase_40 | AC | 129 ms
273,792 KB |
testcase_41 | AC | 129 ms
273,664 KB |
testcase_42 | AC | 129 ms
273,736 KB |
testcase_43 | AC | 130 ms
273,732 KB |
testcase_44 | AC | 130 ms
273,664 KB |
testcase_45 | AC | 128 ms
273,664 KB |
testcase_46 | AC | 128 ms
273,664 KB |
testcase_47 | AC | 129 ms
273,664 KB |
testcase_48 | AC | 128 ms
273,792 KB |
ソースコード
#pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include<iostream> #include<string> #include<cstdio> #include<vector> #include<cmath> #include<algorithm> #include<functional> #include<iomanip> #include<queue> #include<ciso646> #include<random> #include<map> #include<set> #include<bitset> #include<stack> #include<unordered_map> #include<unordered_set> #include<utility> #include<cassert> #include<complex> #include<numeric> #include<array> using namespace std; //#define int long long typedef long long ll; typedef unsigned long long ul; typedef unsigned int ui; constexpr ll mod = 998244353; const ll INF = mod * mod; typedef pair<int, int>P; #define stop char nyaa;cin>>nyaa; #define rep(i,n) for(int i=0;i<n;i++) #define per(i,n) for(int i=n-1;i>=0;i--) #define Rep(i,sta,n) for(int i=sta;i<n;i++) #define rep1(i,n) for(int i=1;i<=n;i++) #define per1(i,n) for(int i=n;i>=1;i--) #define Rep1(i,sta,n) for(int i=sta;i<=n;i++) #define all(v) (v).begin(),(v).end() typedef pair<ll, ll> LP; typedef long double ld; typedef pair<ld, ld> LDP; const ld eps = 1e-12; const ld pi = acosl(-1.0); ll mod_pow(ll x, ll n, ll m = mod) { if (n < 0) { ll res = mod_pow(x, -n, m); return mod_pow(res, m - 2, m); } if (abs(x) >= m)x %= m; if (x < 0)x += m; ll res = 1; while (n) { if (n & 1)res = res * x % m; x = x * x % m; n >>= 1; } return res; } struct modint { ll n; modint() :n(0) { ; } modint(ll m) :n(m) { if (n >= mod)n %= mod; else if (n < 0)n = (n % mod + mod) % mod; } operator int() { return n; } }; bool operator==(modint a, modint b) { return a.n == b.n; } modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; } modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; } modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; } modint operator+(modint a, modint b) { return a += b; } modint operator-(modint a, modint b) { return a -= b; } modint operator*(modint a, modint b) { return a *= b; } modint operator^(modint a, ll n) { if (n == 0)return modint(1); modint res = (a * a) ^ (n / 2); if (n % 2)res = res * a; return res; } ll inv(ll a, ll p) { return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p); } modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); } modint operator/=(modint& a, modint b) { a = a / b; return a; } const int max_n = 1 << 18; modint fact[max_n], factinv[max_n]; void init_f() { fact[0] = modint(1); for (int i = 0; i < max_n - 1; i++) { fact[i + 1] = fact[i] * modint(i + 1); } factinv[max_n - 1] = modint(1) / fact[max_n - 1]; for (int i = max_n - 2; i >= 0; i--) { factinv[i] = factinv[i + 1] * modint(i + 1); } } modint comb(int a, int b) { if (a < 0 || b < 0 || a < b)return 0; return fact[a] * factinv[b] * factinv[a - b]; } modint combP(int a, int b) { if (a < 0 || b < 0 || a < b)return 0; return fact[a] * factinv[a - b]; } modint mpow[260][1<<17]; void solve() { int n, c; cin >> n >> c; vector<int> d(n); rep(i, n - 1) { int a, b; cin >> a >> b; a--; b--; d[a]++; d[b]++; } rep(i, c + 1) { mpow[i][0] = 1; rep(j, n) { mpow[i][j + 1] = mpow[i][j] * (modint)i; } } vector<modint> mem(c + 1); for (int k = 1; k <= c; k++) { modint p = k; rep(i, n)if (d[i] > 1) { modint num = mpow[k][d[i] - 1]; for (int j = d[i] / 2 + 1; j < d[i]; j++) { //same with par num -= comb(d[i] - 1, j - 1) * mpow[k - 1][d[i] - j]; //not if (j < d[i]) { num -= (modint)(k - 1) * comb(d[i] - 1, j) * mpow[k - 1][d[i] - 1 - j]; } } p *= num; } mem[k] = p; } modint ans = 0; for (int i = c; i > 0; i--) { modint val = mem[i] * comb(c, i); if ((c - i) % 2)val *= -1; ans += val; } cout << ans << "\n"; } signed main() { ios::sync_with_stdio(false); cin.tie(0); //cout << fixed << setprecision(12); init_f(); //init(); //expr(); //int t; cin >> t; rep(i, t) solve(); return 0; }