제출 #366410

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
366410	2021-02-14 07:09:40	wleung_bvg	Planine (COCI21_planine)	C++17	0 / 110	2066 ms	49052 KiB

Main

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#include <bits/stdc++.h>
using namespace std;
template<class C>constexpr int sz(const C&c){return int(c.size());}
using ll=long long;using ld=long double;constexpr const char nl='\n',sp=' ';
template <class T> T abs(T a) { return a >= 0 ? a : -a; }
template <class T> T gcd(T a, T b) { return b == 0 ? abs(a) : gcd(b, a % b); }
template <class T> struct Fraction {
  // static_assert(is_integral<T>::value, "T must be an integral type");
  using F = Fraction<T>; T num, den;
  Fraction(T num = T(), T den = T(1)) : num(num), den(den) {}
  F reduce() const {
    T g = gcd(num, den);
    return den >= 0 ? F(num / g, den / g) : F(-num / g, -den / g);
  }
  F operator + (const F &f) const { return F(*this) += f; }
  F &operator += (const F &f) {
    num = (num * f.den + f.num * den); den = den * f.den; return *this;
  }
  F operator - (const F &f) const { return F(*this) -= f; }
  F &operator -= (const F &f) {
    num = (num * f.den - f.num * den); den = den * f.den; return *this;
  }
  F operator + () const { return *this; }
  F operator - () const { return F(-num, den); }
  F operator * (const F &f) const { return F(*this) *= f; }
  F &operator *= (const F &f) {
    num = num * f.num; den = den * f.den; return *this;
 
 
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