結果
問題 | No.797 Noelちゃんとピラミッド |
ユーザー | minato |
提出日時 | 2020-05-27 12:49:01 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 16 ms / 2,000 ms |
コード長 | 3,974 bytes |
コンパイル時間 | 3,614 ms |
コンパイル使用メモリ | 237,868 KB |
実行使用メモリ | 6,824 KB |
最終ジャッジ日時 | 2024-10-13 03:38:21 |
合計ジャッジ時間 | 6,318 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,820 KB |
testcase_03 | AC | 16 ms
6,816 KB |
testcase_04 | AC | 16 ms
6,816 KB |
testcase_05 | AC | 16 ms
6,820 KB |
testcase_06 | AC | 16 ms
6,820 KB |
testcase_07 | AC | 15 ms
6,816 KB |
testcase_08 | AC | 16 ms
6,816 KB |
testcase_09 | AC | 16 ms
6,816 KB |
testcase_10 | AC | 16 ms
6,816 KB |
testcase_11 | AC | 15 ms
6,816 KB |
testcase_12 | AC | 15 ms
6,816 KB |
testcase_13 | AC | 14 ms
6,820 KB |
testcase_14 | AC | 16 ms
6,816 KB |
testcase_15 | AC | 16 ms
6,816 KB |
testcase_16 | AC | 16 ms
6,820 KB |
testcase_17 | AC | 16 ms
6,816 KB |
testcase_18 | AC | 16 ms
6,816 KB |
testcase_19 | AC | 15 ms
6,816 KB |
testcase_20 | AC | 16 ms
6,816 KB |
testcase_21 | AC | 15 ms
6,816 KB |
testcase_22 | AC | 16 ms
6,820 KB |
testcase_23 | AC | 11 ms
6,816 KB |
testcase_24 | AC | 4 ms
6,816 KB |
testcase_25 | AC | 9 ms
6,820 KB |
testcase_26 | AC | 10 ms
6,816 KB |
testcase_27 | AC | 16 ms
6,816 KB |
testcase_28 | AC | 14 ms
6,820 KB |
testcase_29 | AC | 3 ms
6,820 KB |
testcase_30 | AC | 4 ms
6,816 KB |
testcase_31 | AC | 11 ms
6,820 KB |
testcase_32 | AC | 6 ms
6,816 KB |
testcase_33 | AC | 9 ms
6,816 KB |
testcase_34 | AC | 7 ms
6,816 KB |
testcase_35 | AC | 16 ms
6,820 KB |
testcase_36 | AC | 3 ms
6,816 KB |
testcase_37 | AC | 14 ms
6,820 KB |
testcase_38 | AC | 13 ms
6,820 KB |
testcase_39 | AC | 9 ms
6,816 KB |
testcase_40 | AC | 3 ms
6,816 KB |
testcase_41 | AC | 4 ms
6,816 KB |
testcase_42 | AC | 9 ms
6,820 KB |
testcase_43 | AC | 2 ms
6,816 KB |
testcase_44 | AC | 2 ms
6,824 KB |
testcase_45 | AC | 2 ms
6,820 KB |
testcase_46 | AC | 1 ms
6,820 KB |
testcase_47 | AC | 2 ms
6,820 KB |
testcase_48 | AC | 2 ms
6,816 KB |
testcase_49 | AC | 1 ms
6,820 KB |
testcase_50 | AC | 1 ms
6,816 KB |
testcase_51 | AC | 2 ms
6,816 KB |
testcase_52 | AC | 2 ms
6,820 KB |
testcase_53 | AC | 2 ms
6,816 KB |
testcase_54 | AC | 2 ms
6,820 KB |
testcase_55 | AC | 1 ms
6,816 KB |
testcase_56 | AC | 1 ms
6,816 KB |
testcase_57 | AC | 2 ms
6,820 KB |
testcase_58 | AC | 1 ms
6,820 KB |
testcase_59 | AC | 2 ms
6,820 KB |
testcase_60 | AC | 2 ms
6,816 KB |
testcase_61 | AC | 2 ms
6,816 KB |
testcase_62 | AC | 2 ms
6,816 KB |
ソースコード
#pragma GCC optimize("Ofast") #include <bits/stdc++.h> #include <ext/pb_ds/assoc_container.hpp> #include <ext/pb_ds/tree_policy.hpp> using namespace std; using namespace __gnu_pbds; using ll = long long; using u64 = uint_fast64_t; using pii = pair<int, int>; using pll = pair<long long, long long>; #define rep(i, n) for(int i = 0; i < (n); ++i) #define all(x) (x).begin(),(x).end() constexpr char ln = '\n'; constexpr long long MOD = 1000000007; //constexpr long long MOD = 998244353; template<class T1, class T2> inline bool chmax(T1 &a, T2 b) { if (a < b) { a = b; return true;} return false; } template<class T1, class T2> inline bool chmin(T1 &a, T2 b) { if (a > b) { a = b; return true;} return false; } inline int popcount(int x) {return __builtin_popcount(x);} inline int popcount(long long x) {return __builtin_popcountll(x);} void print() { cout << "\n"; } template<class T, class... Args> void print(const T &x, const Args &... args) { cout << x << " "; print(args...); } /////////////////////////////////////////////////////////////////////////////////////////////////////////////// template <uint_fast64_t Modulus> struct ModInt { using u64 = uint_fast64_t; u64 a; constexpr ModInt(const long long x = 0) noexcept : a(x >= 0 ? x % Modulus : (Modulus - (-x) % Modulus) % Modulus) {} constexpr u64 &value() noexcept {return a;} constexpr const u64 &value() const noexcept {return a;} constexpr ModInt operator+(const ModInt rhs) const noexcept {return ModInt(*this) += rhs;} constexpr ModInt operator-(const ModInt rhs) const noexcept {return ModInt(*this) -= rhs;} constexpr ModInt operator*(const ModInt rhs) const noexcept {return ModInt(*this) *= rhs;} constexpr ModInt operator/(const ModInt rhs) const noexcept {return ModInt(*this) /= rhs;} constexpr ModInt operator^(const long long rhs) const noexcept {return ModInt(*this) ^= rhs;} constexpr bool operator==(const ModInt &rhs) const noexcept {return a == rhs.a;} constexpr bool operator!=(const ModInt &rhs) const noexcept {return a != rhs.a;} constexpr ModInt &operator+=(const ModInt rhs) noexcept { a += rhs.a; if (a >= Modulus) { a -= Modulus; } return *this; } constexpr ModInt &operator-=(const ModInt rhs) noexcept { if (a < rhs.a) { a += Modulus; } a -= rhs.a; return *this; } constexpr ModInt &operator*=(const ModInt rhs) noexcept { a = a * rhs.a % Modulus; return *this; } constexpr ModInt &operator/=(ModInt rhs) noexcept { u64 exp = Modulus - 2; while (exp) { if (exp&1) *this *= rhs; exp >>= 1; rhs *= rhs; } return *this; } constexpr ModInt &operator^=(long long exp) noexcept { ModInt rhs = a; a = 1; while (exp) { if (exp&1) *this *= rhs; exp >>= 1; rhs *= rhs; } return *this; } friend ostream &operator<<(ostream& os, const ModInt& rhs) noexcept {return os << rhs.a;} friend istream &operator>>(istream& is, ModInt& rhs) noexcept {long long a; is >> a; rhs = a; return is;} }; using mint = ModInt<MOD>; struct ModCombination { vector<mint> Fac; vector<mint> Facinv; ModCombination(int x) { Fac.resize(x+1); Facinv.resize(x+1); Fac[0] = 1; for (int i = 0; i < x; ++i) Fac[i+1] = Fac[i]*(i+1); Facinv[x] = Fac[0]/Fac[x]; for (int i = x; i > 0; --i) Facinv[i-1] = Facinv[i]*i; } mint get(int n, int k) { if (k < 0 || k > n) return 0; return Fac[n]*Facinv[k]*Facinv[n-k]; } }; int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int N; cin >> N; vector<int> A(N); rep(i,N) cin >> A[i]; ModCombination MC(N); mint ans = 0; rep(i,N) { ans += MC.get(N-1,i)*A[i]; } cout << ans << ln; }