結果
問題 | No.766 金魚すくい |
ユーザー | paruki |
提出日時 | 2018-12-17 18:25:38 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 92 ms / 1,500 ms |
コード長 | 3,473 bytes |
コンパイル時間 | 1,931 ms |
コンパイル使用メモリ | 177,608 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-09-25 07:36:02 |
合計ジャッジ時間 | 6,842 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 68 ms
6,812 KB |
testcase_01 | AC | 69 ms
6,944 KB |
testcase_02 | AC | 68 ms
6,944 KB |
testcase_03 | AC | 68 ms
6,944 KB |
testcase_04 | AC | 68 ms
6,940 KB |
testcase_05 | AC | 69 ms
6,940 KB |
testcase_06 | AC | 69 ms
6,944 KB |
testcase_07 | AC | 69 ms
6,944 KB |
testcase_08 | AC | 69 ms
6,944 KB |
testcase_09 | AC | 69 ms
6,940 KB |
testcase_10 | AC | 69 ms
6,940 KB |
testcase_11 | AC | 68 ms
6,944 KB |
testcase_12 | AC | 68 ms
6,940 KB |
testcase_13 | AC | 69 ms
6,944 KB |
testcase_14 | AC | 69 ms
6,940 KB |
testcase_15 | AC | 69 ms
6,944 KB |
testcase_16 | AC | 68 ms
6,944 KB |
testcase_17 | AC | 69 ms
6,940 KB |
testcase_18 | AC | 69 ms
6,944 KB |
testcase_19 | AC | 69 ms
6,940 KB |
testcase_20 | AC | 69 ms
6,944 KB |
testcase_21 | AC | 69 ms
6,944 KB |
testcase_22 | AC | 69 ms
6,940 KB |
testcase_23 | AC | 92 ms
6,940 KB |
testcase_24 | AC | 91 ms
6,940 KB |
testcase_25 | AC | 92 ms
6,940 KB |
testcase_26 | AC | 91 ms
6,944 KB |
testcase_27 | AC | 92 ms
6,944 KB |
testcase_28 | AC | 90 ms
6,940 KB |
testcase_29 | AC | 91 ms
6,944 KB |
testcase_30 | AC | 90 ms
6,940 KB |
testcase_31 | AC | 92 ms
6,940 KB |
testcase_32 | AC | 90 ms
6,940 KB |
testcase_33 | AC | 90 ms
6,940 KB |
testcase_34 | AC | 90 ms
6,944 KB |
testcase_35 | AC | 69 ms
6,940 KB |
testcase_36 | AC | 70 ms
6,940 KB |
testcase_37 | AC | 90 ms
6,940 KB |
testcase_38 | AC | 91 ms
6,944 KB |
testcase_39 | AC | 90 ms
6,940 KB |
testcase_40 | AC | 90 ms
6,940 KB |
testcase_41 | AC | 82 ms
6,944 KB |
testcase_42 | AC | 81 ms
6,940 KB |
testcase_43 | AC | 68 ms
6,940 KB |
testcase_44 | AC | 68 ms
6,944 KB |
ソースコード
#define _USE_MATH_DEFINES #include "bits/stdc++.h" using namespace std; #define FOR(i,j,k) for(int (i)=(j);(i)<(int)(k);++(i)) #define rep(i,j) FOR(i,0,j) #define each(x,y) for(auto &(x):(y)) #define mp make_pair #define MT make_tuple #define all(x) (x).begin(),(x).end() #define debug(x) cout<<#x<<": "<<(x)<<endl #define smax(x,y) (x)=max((x),(y)) #define smin(x,y) (x)=min((x),(y)) #define MEM(x,y) memset((x),(y),sizeof (x)) #define sz(x) (int)(x).size() #define RT return using ll = long long; using pii = pair<int, int>; using vi = vector<int>; using vll = vector<ll>; template<int MOD> class ModInt { public: ModInt() :value(0) {} ModInt(long long val) :value((int)(val<0 ? MOD + val % MOD : val % MOD)) { } ModInt& operator+=(ModInt that) { value = value + that.value; if (value >= MOD)value -= MOD; return *this; } ModInt& operator-=(ModInt that) { value -= that.value; if (value<0)value += MOD; return *this; } ModInt& operator*=(ModInt that) { value = (int)((long long)value * that.value % MOD); return *this; } ModInt &operator/=(ModInt that) { return *this *= that.inverse(); } ModInt operator+(ModInt that) const { return ModInt(*this) += that; } ModInt operator-(ModInt that) const { return ModInt(*this) -= that; } ModInt operator*(ModInt that) const { return ModInt(*this) *= that; } ModInt operator/(ModInt that) const { return ModInt(*this) /= that; } ModInt pow(long long k) const { ModInt n = *this, res = 1; while (k) { if (k & 1)res *= n; n *= n; k >>= 1; } return res; } ModInt inverse() const { long long a = value, b = MOD, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } return ModInt(u); } int toi() const { return value; } private: int value; }; typedef ModInt<1000000007> mint; ostream& operator<<(ostream& os, const mint& x) { os << x.toi(); return os; } namespace comb { const int N = 200005; mint fact[N]; mint rev[N]; void init() { fact[0] = 1; for (int i = 1; i < N; ++i)fact[i] = fact[i - 1] * i; for (int i = 0; i < N; ++i)rev[i] = fact[i].inverse(); } mint C(int n, int r) { if (n < r)return 0; return fact[n] * rev[r] * rev[n - r]; } mint H(int n, int r) { return C(n + r - 1, r); } mint P(int n, int r) { assert(n >= r); return fact[n] * rev[n - r]; } mint catalan(int n) { return fact[2 * n] * rev[n + 1] * rev[n]; } } int N, M, P; void solve() { comb::init(); cin >> N >> M >> P; mint p = mint(P) / 100, q = mint(1) - p; vi V(N); vector<mint> S(N + 1); rep(i, N)cin >> V[i]; sort(V.rbegin(), V.rend()); rep(i, N) S[i + 1] = S[i] + V[i]; mint ans = 0, pm = p.pow(M), qq = 1; for (int i = 1; i < N; ++i) { qq *= q; ans += comb::C(M - 1 + i, i)*qq*pm*S[i]; } mint qn = qq * q, pp = 1; rep(i, M) { ans += comb::C(N - 1 + i, i)*qn*pp*S[N]; pp *= p; } cout << ans << endl; } int main() { ios::sync_with_stdio(false); cin.tie(0); cout << fixed << setprecision(15); solve(); return 0; }