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QOJ

IDProblemSubmitterResultTimeMemoryLanguageFile sizeSubmit timeJudge time
#580461#9381. 502 Bad Gatewaykur222WA 368ms3684kbC++232.7kb2024-09-21 21:58:462024-09-21 21:58:46

Judging History

你现在查看的是最新测评结果

  • [2024-09-24 14:55:37]
  • hack成功,自动添加数据
  • (/hack/886)
  • [2024-09-21 21:58:46]
  • 评测
  • 测评结果:WA
  • 用时:368ms
  • 内存:3684kb
  • [2024-09-21 21:58:46]
  • 提交

answer

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using ll=long long;
using ull=unsigned long long;
using pi=pair<int,int>;
const ll mod=998244353;
template<class T>
struct Frac{
	T num;
	T den;
	Frac(T num_,T den_):num(num_),den(den_){
		if(den<0){
			den=-den;
			num=-num;
		}
	}
	Frac():Frac(0,1){}
	Frac(T num_):Frac(num_,1){}
	void dd()
	{
		ll gg=gcd(num,den);
		num/=gg;
		den/=gg;	
	};
	explicit operator double() const{
		return 1.*num/den;
	}
	
	Frac &operator+=(const Frac &rhs){
		num=num*rhs.den+rhs.num*den;
		den*=rhs.den;
		return *this;
	}
	Frac &operator-=(const Frac &rhs){
		num=num*rhs.den-rhs.num*den;
		den*=rhs.den;
		return *this;
	}
	Frac &operator*=(const Frac &rhs){
		num*=rhs.num;
		den*=rhs.den;
		return *this;
	}
	Frac &operator/=(const Frac &rhs){
		num*=rhs.den;
		den*=rhs.num;
		if(den<0){
			num=-num;
			den=-den;
		}
		return *this;
	}
	friend Frac operator+(Frac lhs,const Frac &rhs){
		return lhs+=rhs;
	}
	friend Frac operator-(Frac lhs,const Frac &rhs){
		return lhs-=rhs;
	}
	friend Frac operator*(Frac lhs,const Frac &rhs){
		return lhs*=rhs;
	}
	friend Frac operator/(Frac lhs,const Frac &rhs){
		return lhs/=rhs;
	}
	friend Frac operator-(const Frac &a){
		return Frac(-a.num,a.den);
	}
	friend bool operator==(const Frac &lhs,const Frac &rhs){
		return lhs.num*lhs.den==rhs.num*rhs.den;
	}
	friend bool operator!=(const Frac &lhs,const Frac &rhs){
		return lhs.num*lhs.den!=rhs.num*rhs.den;
	}
	friend bool operator<(const Frac &lhs,const Frac &rhs){
		return lhs.num*rhs.den<rhs.num*lhs.den;
	}
	friend bool operator>(const Frac &lhs,const Frac &rhs){
		return lhs.num*rhs.den>rhs.num*lhs.den;
	}
	friend bool operator<=(const Frac &lhs,const Frac &rhs){
		return lhs.num*rhs.den<=rhs.num*lhs.den;
	}
	friend bool operator>=(const Frac &lhs,const Frac &rhs){
		return lhs.num*rhs.den>=rhs.num*lhs.den;
	}
	
};

using fr=Frac<ll>;
void solve()
{
	ll T;
	cin >> T;
    // T=1e9;
	fr ans = fr(T + 1, 2);
	fr now;
	auto check = [&](ll m) {
		ll num_low = m - 1;
		ll num_great = T - m + 1;
		ll total = (num_low + 1) * num_low / 2 + num_great;
		if(T == num_great) {
			now = fr((T + 1), 2);
		} else now = fr(total, T - num_great);
		// cerr << m << " " << now.num << " " << now.den << "\n";
		return now + fr(1, 1) <= fr(m, 1);
	};
	
	ll lo = 1, hi = T + 1;
	while(lo < hi) {
		ll m = (lo + hi) / 2;
		if(check(m)){ 
			hi = m;
			ans = min(ans, now);
		}
		else lo = m + 1;
	}
	ans.dd();
	cout << ans.num << " " << ans.den << "\n";
}
int main()
{
	ios::sync_with_stdio(0);
	cin.tie(0);
	int __=1e6;
	cin>>__;
	while(__--)
	{
		solve();
	}
	return 0;
}

Details

Tip: Click on the bar to expand more detailed information

Test #1:

score: 100
Accepted
time: 0ms
memory: 3668kb

input:

3
1
2
3

output:

1 1
3 2
2 1

result:

ok 3 lines

Test #2:

score: 0
Accepted
time: 180ms
memory: 3684kb

input:

1000000
1
1000000000
1
1
1000000000
1
1000000000
1
1
1
1000000000
1
1
1000000000
1
1000000000
1000000000
1
1000000000
1
1
1000000000
1
1000000000
1000000000
1
1000000000
1000000000
1000000000
1000000000
1000000000
1000000000
1
1
1000000000
1
1000000000
1000000000
1000000000
1000000000
1
1
1
10000000...

output:

1 1
1999961560 44721
1 1
1 1
1999961560 44721
1 1
1999961560 44721
1 1
1 1
1 1
1999961560 44721
1 1
1 1
1999961560 44721
1 1
1999961560 44721
1999961560 44721
1 1
1999961560 44721
1 1
1 1
1999961560 44721
1 1
1999961560 44721
1999961560 44721
1 1
1999961560 44721
1999961560 44721
1999961560 44721
19...

result:

ok 1000000 lines

Test #3:

score: -100
Wrong Answer
time: 368ms
memory: 3660kb

input:

1000000
158260522
877914575
602436426
24979445
861648772
623690081
433933447
476190629
262703497
211047202
971407775
628894325
731963982
822804784
450968417
430302156
982631932
161735902
880895728
923078537
707723857
189330739
910286918
802329211
404539679
303238506
317063340
492686568
773361868
125...

output:

316511467 17791
1755824328 41903
1204845831 34711
49954223 7068
1723292600 41513
623676492 17659
867864517 29460
952375859 30861
262700539 11461
422085442 20545
1942776701 44077
251551941 7093
1463896912 38261
1645584679 40566
901913913 30032
107573492 3667
1965228547 44331
323457022 17985
176178307...

result:

wrong answer 1642nd lines differ - expected: '338189509 18390', found: '42275665 1'