結果
問題 | No.1175 Simultaneous Equations |
ユーザー | kcvlex |
提出日時 | 2020-08-21 21:40:58 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 2 ms / 2,000 ms |
コード長 | 6,652 bytes |
コンパイル時間 | 1,273 ms |
コンパイル使用メモリ | 145,468 KB |
実行使用メモリ | 5,248 KB |
最終ジャッジ日時 | 2024-10-15 05:26:50 |
合計ジャッジ時間 | 1,789 ms |
ジャッジサーバーID (参考情報) |
judge4 / 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
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 1 ms
5,248 KB |
testcase_04 | AC | 2 ms
5,248 KB |
testcase_05 | AC | 2 ms
5,248 KB |
testcase_06 | AC | 2 ms
5,248 KB |
testcase_07 | AC | 2 ms
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testcase_08 | AC | 2 ms
5,248 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 1 ms
5,248 KB |
testcase_12 | AC | 1 ms
5,248 KB |
ソースコード
#define CPP17 #include <limits> #include <initializer_list> #include <utility> #include <bitset> #include <tuple> #include <type_traits> #include <functional> #include <string> #include <array> #include <deque> #include <list> #include <queue> #include <stack> #include <vector> #include <map> #include <set> #include <unordered_map> #include <unordered_set> #include <iterator> #include <algorithm> #include <complex> #include <random> #include <numeric> #include <iostream> #include <iomanip> #include <sstream> #include <regex> #include <cassert> #include <cstddef> #ifdef CPP17 #include <variant> #endif #define endl codeforces #define ALL(v) std::begin(v), std::end(v) #define ALLR(v) std::rbegin(v), std::rend(v) using ll = std::int64_t; using ull = std::uint64_t; using pii = std::pair<int, int>; using tii = std::tuple<int, int, int>; using pll = std::pair<ll, ll>; using tll = std::tuple<ll, ll, ll>; using size_type = ssize_t; template <typename T> using vec = std::vector<T>; template <typename T> using vvec = vec<vec<T>>; template <typename T> const T& var_min(const T &t) { return t; } template <typename T> const T& var_max(const T &t) { return t; } template <typename T, typename... Tail> const T& var_min(const T &t, const Tail&... tail) { return std::min(t, var_min(tail...)); } template <typename T, typename... Tail> const T& var_max(const T &t, const Tail&... tail) { return std::max(t, var_max(tail...)); } template <typename T, typename... Tail> void chmin(T &t, const Tail&... tail) { t = var_min(t, tail...); } template <typename T, typename... Tail> void chmax(T &t, const Tail&... tail) { t = var_max(t, tail...); } template <typename T, std::size_t Head, std::size_t... Tail> struct multi_dim_array { using type = std::array<typename multi_dim_array<T, Tail...>::type, Head>; }; template <typename T, std::size_t Head> struct multi_dim_array<T, Head> { using type = std::array<T, Head>; }; template <typename T, std::size_t... Args> using mdarray = typename multi_dim_array<T, Args...>::type; #ifdef CPP17 template <typename T, typename F, typename... Args> void fill_seq(T &t, F f, Args... args) { if constexpr (std::is_invocable<F, Args...>::value) { t = f(args...); } else { for (size_type i = 0; i < t.size(); i++) fill_seq(t[i], f, args..., i); } } #endif template <typename T> vec<T> make_v(size_type sz) { return vec<T>(sz); } template <typename T, typename... Tail> auto make_v(size_type hs, Tail&&... ts) { auto v = std::move(make_v<T>(std::forward<Tail>(ts)...)); return vec<decltype(v)>(hs, v); } namespace init__ { struct InitIO { InitIO() { std::cin.tie(nullptr); std::ios_base::sync_with_stdio(false); std::cout << std::fixed << std::setprecision(30); } } init_io; } template <typename T> T ceil_pow2(T bound) { T ret = 1; while (ret < bound) ret *= 2; return ret; } template <typename T> T ceil_div(T a, T b) { return a / b + !!(a % b); } #define CPP17 namespace math { template <typename T = ll> struct fraction { T num, den; bool neg; constexpr fraction(T num, T den) : fraction(abs(num), abs(den), gcd(abs(num), abs(den)), (num < 0) ^ (den < 0)) { } constexpr fraction(T num_) : fraction(num_, 1) { } constexpr fraction() : fraction(0, 1) { } constexpr fraction inv() const { assert(num); return fraction(den, num, 1, neg); } constexpr fraction operator-() const { auto ret = *this; ret.neg ^= true; return ret; } constexpr fraction& operator+=(const fraction &rhs) { T l = lcm(den, rhs.den); T a = num * (l / den); T b = rhs.num * (l / rhs.den); if (neg) a *= -1; if (rhs.neg) b *= -1; den = l; num = a + b; neg = (num < 0); num = abs(num); reduction(); return *this; } constexpr fraction& operator-=(const fraction &rhs) { return (*this) += (-rhs); } constexpr fraction& operator*=(const fraction &rhs) { neg ^= rhs.neg; num *= rhs.num; den *= rhs.den; reduction(); return *this; } constexpr fraction& operator/=(const fraction &rhs) { return (*this) *= rhs.inv(); } constexpr bool operator==(const fraction &rhs) const { return num == rhs.num && den == rhs.den && neg == rhs.neg; } constexpr bool operator<(const fraction &rhs) const { T lv = num * rhs.den; T rv = rhs.num * den; if (neg) lv *= -1; if (rhs.neg) rv *= -1; return lv < rv; } constexpr fraction operator+(const fraction &rhs) const { return fraction(*this) += rhs; } constexpr fraction operator-(const fraction &rhs) const { return fraction(*this) -= rhs; } constexpr fraction operator*(const fraction &rhs) const { return fraction(*this) *= rhs; } constexpr fraction operator/(const fraction &rhs) const { return fraction(*this) /= rhs; } constexpr bool operator!=(const fraction &rhs) const { return !((*this) == rhs); } constexpr bool operator<=(const fraction &rhs) const { return (*this) == rhs || (*this) < rhs; } constexpr bool operator>=(const fraction &rhs) const { return !((*this) < rhs); } constexpr bool operator>(const fraction &rhs) const { return !((*this) <= rhs); } constexpr T gcd(T a, T b) { return b ? gcd(b, a % b) : a; } constexpr T lcm(T a, T b) { return a / gcd(a, b) * b; } constexpr T abs(T n) { return n < 0 ? -n : n; } private: constexpr void reduction() { if (num == 0) { neg = false; den = 1; return; } auto g = gcd(num, den); if (g) { num /= g; den /= g; } } constexpr fraction(T num, T den, T g, bool neg) : num(num / g), den(den / g), neg(neg) { } }; template <typename T> std::ostream& operator<<(std::ostream &os, fraction<T> f) { if (f.neg) os << "-"; os << f.num; os << "/"; os << f.den; return os; } } int main() { using frac_type = math::fraction<ll>; ll a, b, c, d, e, f; std::cin >> a >> b >> c >> d >> e >> f; // d*b*y - a*e*y = d*c - a*f // (bd - ae)y = dc-af frac_type y(d * c - a * f, b * d - a * e); frac_type x = frac_type(c, 1) - (y * frac_type(b, 1)); x *= frac_type(1, a); double g, h, i, j; g = x.num; h = x.den; i = y.num; j = y.den; double xd = g / h, yd = i / j; if (x.neg) xd *= -1; if (y.neg) yd *= -1; std::cout << xd << " " << yd << "\n"; return 0; }