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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
#581202#9381. 502 Bad GatewayKdlyhWA 175ms3696kbC++202.8kb2024-09-22 10:37:232024-09-22 10:37:24

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)
  • [2024-09-22 10:37:24]
  • 评测
  • 测评结果:WA
  • 用时:175ms
  • 内存:3696kb
  • [2024-09-22 10:37:23]
  • 提交

answer

#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
template <class T, size_t size = tuple_size<T>::value>
string to_debug(T, string s = "")
    requires(not ranges::range<T>);

string to_debug(auto x)
    requires requires(ostream& os) { os << x; }
{
    return static_cast<ostringstream>(ostringstream() << x).str();
}
string to_debug(ranges::range auto x, string s = "")
    requires(not is_same_v<decltype(x), string>)
{
    for (auto& xi : x) {
        s += ", " + to_debug(xi);
    }
    return "[" + s.substr(s.empty() ? 0 : 2) + "]";
}
template <class T, size_t size>
string to_debug(T x, string s)
    requires(not ranges::range<T>)
{
    [&]<size_t... I>(index_sequence<I...>) {
        ((s += ", " + to_debug(get<I>(x))), ...);
    }(make_index_sequence<size>());
    return "(" + s.substr(s.empty() ? 0 : 2) + ")";
}
#define debug(...) cerr << __LINE__ << ": (" #__VA_ARGS__ ") = " << to_debug(tuple(__VA_ARGS__)) << "\n"
#else
#define debug(X...)
#endif

using i64 = long long;

void pre_cal()
{
}

template<class T> struct Frac {
    T x, y;
    Frac() : Frac(0, 1) {}
    Frac(T x_) : Frac(x_, 1) {}
    Frac(T x_, T y_) : x(x_), y(y_) {
        if (y < 0) {y = -y; x= -x;}
    
    }
    constexpr double val() const {
        return 1.0 * x / y;
    }
    constexpr Frac norm() const {T p = gcd(x, y); return {x / p, y / p};}
    friend constexpr auto &operator << (ostream& o, const Frac& j) {
        T p = gcd(j.x, j.y);
        if (j.y == p) {
            return o << j.x / p;
        } else {
            return o << j.x / p << " " << j.y / p;
        }
    }
    constexpr Frac &operator += (const Frac& i) {
        return x = x * i.y + y * i.x, y *= i.y, *this;
    }
    constexpr Frac &operator *= (const Frac& i) {
        return x *= i.x, y *= i.y, *this;
    }
    constexpr Frac &operator /= (const Frac& i) {
        x *= i.y; y *= i.x; if (y < 0) {x = -x, y = -y;}
        return *this;
    }
    friend constexpr bool operator < (const Frac i, const Frac j) {return i.x * j.y < i.y * j.x;}
    friend constexpr bool operator == (const Frac i, const Frac j) {return i.x * j.y == i.y * j.x;}
};

void solve( )
{
#define tests
    int n; cin >> n; 
    if (n < 6) {
        if ((n + 1) % 2 == 0) {cout << (n + 1) / 2 << " " << 1 << "\n";}
        else {cout << (n + 1) << " " << 2 << "\n";} 
        return ;
    }
    int k{std::sqrt(n) + 1};
    i64 ans{1LL * (1 + 2 * k) * (2 * k) / 2};
    Frac<i64> fenshu(1LL * k * 2 * k + n - (k * (k - 1)), k);
    Frac<i64> sum = fenshu; 
    sum *= (n - (2 * k));
    sum += ans;
    sum /= n;
    cout << sum << '\n';
}

signed main()
{
    cin.tie(nullptr)->sync_with_stdio(false);
    pre_cal();
    int _{1};
#ifdef tests
    cin >> _;
#endif
    while (_--) {solve();}
    return 0;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 3696kb

input:

3
1
2
3

output:

1 1
3 2
2 1

result:

ok 3 lines

Test #2:

score: -100
Wrong Answer
time: 175ms
memory: 3560kb

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
1999982504999985871 31623000000000
1 1
1 1
1999982504999985871 31623000000000
1 1
1999982504999985871 31623000000000
1 1
1 1
1 1
1999982504999985871 31623000000000
1 1
1 1
1999982504999985871 31623000000000
1 1
1999982504999985871 31623000000000
1999982504999985871 31623000000000
1 1
19999825049...

result:

wrong answer 2nd lines differ - expected: '1999961560 44721', found: '1999982504999985871 31623000000000'