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QOJ
ID | 题目 | 提交者 | 结果 | 用时 | 内存 | 语言 | 文件大小 | 提交时间 | 测评时间 |
---|---|---|---|---|---|---|---|---|---|
#581793 | #9381. 502 Bad Gateway | False0099 | TL | 1223ms | 3688kb | C++23 | 3.7kb | 2024-09-22 14:13:23 | 2024-09-22 14:13:39 |
Judging History
answer
#include <bits/stdc++.h>
#define int long long
#define endl '\n'
int INF = 0x3f3f3f3f3f3f3f3f;
using namespace std;
typedef pair<int, int> PII;
void init() {
// 初始化代码
}
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;
}
}
void Norm() {
T g = __gcd(num, den);
num /= g, den /= g;
}
Frac() : Frac(0, 1) {}
Frac(T num_) : Frac(num_, 1) {}
explicit operator double() const {
return 1. * num / den;
}
Frac& operator+=(const Frac& rhs) {
num = num * rhs.den + rhs.num * den;
den *= rhs.den;
Norm();
return *this;
}
Frac& operator-=(const Frac& rhs) {
num = num * rhs.den - rhs.num * den;
den *= rhs.den;
Norm();
return *this;
}
Frac& operator*=(const Frac& rhs) {
num *= rhs.num;
den *= rhs.den;
Norm();
return *this;
}
Frac& operator/=(const Frac& rhs) {
num *= rhs.den;
den *= rhs.num;
Norm();
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 * 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 (double)lhs < (double)rhs;
}
friend bool operator>(const Frac& lhs, const Frac& rhs) {
return (double)lhs > (double)rhs;
}
friend bool operator<=(const Frac& lhs, const Frac& rhs) {
return (double)lhs <= (double)rhs;
}
friend bool operator>=(const Frac& lhs, const Frac& rhs) {
return (double)lhs >= (double)rhs;
}
friend std::ostream& operator<<(std::ostream& os, Frac x) {
T g = __gcd(x.num, x.den);
if (x.den < 0) {
x.den = -x.den;
x.num = -x.num;
}
return os << (long long)(x.num / g)<<" "<<(long long)(x.den/g);
}
};
void solve() {
long long _;
cin >> _;
Frac<int> n(_);
// 计算 sqrt(2 * n) 并转换为 Frac<int> 类型
double sqrt_val = sqrt(2.0 * double(n));
int sqrt_val_i=(int)(floor(sqrt_val));
Frac<int> t(sqrt_val_i, 1ll);
Frac<int> ans(INF, 1ll);
auto calc = [&](Frac<int> mid) {
return mid / 2 + n / mid-Frac<int>(1,2);
};
for (int dx = 0; dx <= 5; dx++) {
Frac<int> candidate = t + Frac<int>(dx);
//cerr<<candidate<<" "<<calc(candidate)<<endl;
if (candidate >= 1 ) {
ans = min(ans, calc(candidate));
}
candidate = t - Frac<int>(dx);
//cerr<<candidate<<" "<<calc(candidate)<<endl;
if (candidate >= 1) {
ans = min(ans, calc(candidate));
}
}
cout << ans << endl;
}
signed main() {
ios::sync_with_stdio(false), cin.tie(0);
long long t;
t = 1;
cin >> t;
init();
while (t--) {
solve();
}
}
詳細信息
Test #1:
score: 100
Accepted
time: 0ms
memory: 3688kb
input:
3 1 2 3
output:
1 1 3 2 2 1
result:
ok 3 lines
Test #2:
score: 0
Accepted
time: 1223ms
memory: 3668kb
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
Time Limit Exceeded
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...