結果
問題 | No.1325 Subsequence Score |
ユーザー | polylogK |
提出日時 | 2020-12-23 20:04:23 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 110 ms / 2,000 ms |
コード長 | 3,930 bytes |
コンパイル時間 | 2,039 ms |
コンパイル使用メモリ | 203,796 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-09-21 16:29:58 |
合計ジャッジ時間 | 4,122 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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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
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 2 ms
5,376 KB |
testcase_03 | AC | 1 ms
5,376 KB |
testcase_04 | AC | 2 ms
5,376 KB |
testcase_05 | AC | 2 ms
5,376 KB |
testcase_06 | AC | 2 ms
5,376 KB |
testcase_07 | AC | 2 ms
5,376 KB |
testcase_08 | AC | 1 ms
5,376 KB |
testcase_09 | AC | 1 ms
5,376 KB |
testcase_10 | AC | 2 ms
5,376 KB |
testcase_11 | AC | 2 ms
5,376 KB |
testcase_12 | AC | 2 ms
5,376 KB |
testcase_13 | AC | 105 ms
5,376 KB |
testcase_14 | AC | 28 ms
5,376 KB |
testcase_15 | AC | 82 ms
5,376 KB |
testcase_16 | AC | 95 ms
5,376 KB |
testcase_17 | AC | 42 ms
5,376 KB |
testcase_18 | AC | 26 ms
5,376 KB |
testcase_19 | AC | 101 ms
5,376 KB |
testcase_20 | AC | 14 ms
5,376 KB |
testcase_21 | AC | 34 ms
5,376 KB |
testcase_22 | AC | 44 ms
5,376 KB |
testcase_23 | AC | 101 ms
5,376 KB |
testcase_24 | AC | 106 ms
5,376 KB |
testcase_25 | AC | 110 ms
5,376 KB |
testcase_26 | AC | 110 ms
5,376 KB |
testcase_27 | AC | 110 ms
5,376 KB |
testcase_28 | AC | 2 ms
5,376 KB |
testcase_29 | AC | 2 ms
5,376 KB |
testcase_30 | AC | 2 ms
5,376 KB |
ソースコード
#line 1 "000.cpp" #include <bits/stdc++.h> using namespace std::literals::string_literals; using i64 = std::int_fast64_t; using std::cout; using std::cerr; using std::endl; using std::cin; template<typename T> std::vector<T> make_v(size_t a){return std::vector<T>(a);} template<typename T, typename... Ts> auto make_v(size_t a, Ts... ts){ return std::vector<decltype(make_v<T>(ts...))>(a, make_v<T>(ts...)); } #line 1 "/home/ecasdqina/cpcpp/libs/library_cpp/math/modint.hpp" #line 5 "/home/ecasdqina/cpcpp/libs/library_cpp/math/modint.hpp" namespace cplib { template <std::uint_fast64_t Modulus> class modint { using u32 = std::uint_fast32_t; using u64 = std::uint_fast64_t; using i32 = std::int_fast32_t; using i64 = std::int_fast64_t; inline u64 apply(i64 x) { return (x < 0 ? x + Modulus : x); }; public: u64 a; static constexpr u64 mod = Modulus; constexpr modint(const i64& x = 0) noexcept: a(apply(x % (i64)Modulus)) {} 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 u64& k) const noexcept { return modint(*this) ^= k; } constexpr modint operator^(const modint& k) const noexcept { return modint(*this) ^= k.value(); } constexpr modint operator-() const noexcept { return modint(Modulus - a); } constexpr modint operator++() noexcept { return (*this) = modint(*this) + 1; } constexpr modint operator--() noexcept { return (*this) = modint(*this) - 1; } const bool operator==(const modint& rhs) const noexcept { return a == rhs.a; }; const bool operator!=(const modint& rhs) const noexcept { return a != rhs.a; }; const bool operator<=(const modint& rhs) const noexcept { return a <= rhs.a; }; const bool operator>=(const modint& rhs) const noexcept { return a >= rhs.a; }; const bool operator<(const modint& rhs) const noexcept { return a < rhs.a; }; const 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 % 2) (*this) *= rhs; rhs *= rhs; exp /= 2; } return *this; } constexpr modint& operator^=(u64 k) noexcept { auto b = modint(1); while(k) { if(k & 1) b = b * (*this); (*this) *= (*this); k >>= 1; } return (*this) = b; } constexpr modint& operator=(const modint& rhs) noexcept { a = rhs.a; return (*this); } const modint inverse() const { return modint(1) / *this; } const modint power(i64 k) const { if(k < 0) return modint(*this).inverse() ^ (-k); return modint(*this) ^ k; } explicit operator bool() const { return a; } explicit operator u64() const { return a; } constexpr u64& value() noexcept { return a; } constexpr const u64& value() const noexcept { return a; } friend std::ostream& operator<<(std::ostream& os, const modint& p) { return os << p.a; } friend std::istream& operator>>(std::istream& is, modint& p) { u64 t; is >> t; p = modint(t); return is; } }; } #line 15 "000.cpp" using mint = cplib::modint<998244353>; int main() { int n; scanf("%d", &n); std::vector<int> a(n); for(auto& v: a) scanf("%d", &v); mint ans = 0; for(int i = 0; i < n; i++) { ans += mint(2).power(n - 2) * (2 + i) * a[i]; } printf("%lld\n", ans.value()); return 0; }