結果
| 問題 |
No.2262 Fractions
|
| コンテスト | |
| ユーザー |
risujiroh
|
| 提出日時 | 2023-04-07 23:21:54 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 3,486 bytes |
| コンパイル時間 | 2,891 ms |
| コンパイル使用メモリ | 248,624 KB |
| 実行使用メモリ | 26,240 KB |
| 最終ジャッジ日時 | 2024-10-02 20:35:58 |
| 合計ジャッジ時間 | 9,259 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | TLE * 1 |
| other | -- * 45 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
#define show(...) static_cast<void>(0)
#define all(c) begin(c), end(c)
#define for(...) for ([[maybe_unused]] auto&& __VA_ARGS__)
#define lambda(...) [&](auto&&... args) { return __VA_ARGS__; }
#define $1 get<0>(tie(args...))
#define $2 get<1>(tie(args...))
template <bool = false> struct Rep {
int l, r, d;
Rep begin() const;
int end() const;
bool operator!=(int) const;
void operator++();
int operator*() const;
};
Rep<> rep(int, int, int = 1);
Rep<> rep1(int, int, int = 1);
Rep<true> per(int, int, int = 1);
Rep<true> per1(int, int, int = 1);
template <class R> int len(R&&);
template <class R, class I> int len(R&&, I);
template <class T, class U = T> bool chmin(T&, U&&);
template <class T, class U = T> bool chmax(T&, U&&);
template <class T> ostream& operator<<(ostream&, const vector<T>&);
template <class T> auto operator<<(ostream& os, T&& t) -> decltype(tuple_cat(t), os);
template <class T = int> T input();
template <class... Ts> void print(Ts&&...);
void solve() {
int n = input();
auto k = input<int64_t>();
int i = 0;
bool found = false;
auto dfs = [&](auto self, int a1, int b1, int a2, int b2) -> void {
int am = a1 + a2;
int bm = b1 + b2;
if (n < am || n < bm) {
return;
}
show(am, bm);
self(self, a1, b1, am, bm);
++i;
if (i == k) {
found = true;
cout << am << '/' << bm << '\n';
return;
}
self(self, am, bm, a2, b2);
};
dfs(dfs, 0, 1, 1, 0);
if (!found) {
print(-1);
}
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
for (_ : rep(0, input())) {
solve();
}
}
template <bool R>
Rep<R> Rep<R>::begin() const {
return *this;
}
template <bool R>
int Rep<R>::end() const {
return 0;
}
template <bool R>
bool Rep<R>::operator!=(int) const {
return l <= r;
}
template <bool R>
void Rep<R>::operator++() {
if constexpr (R) {
r -= d;
} else {
l += d;
}
}
template <bool R>
int Rep<R>::operator*() const {
if constexpr (R) {
return r;
} else {
return l;
}
}
inline Rep<> rep(int l, int r, int d) {
assert(0 < d);
return {l, r - 1, d};
}
inline Rep<> rep1(int l, int r, int d) {
assert(0 < d);
return {l, r, d};
}
inline Rep<true> per(int l, int r, int d) {
assert(0 < d);
assert((r - l) % d == 0);
return {l, r - d, d};
}
inline Rep<true> per1(int l, int r, int d) {
assert(0 < d);
return {l, r, d};
}
template <class R>
int len(R&& r) {
return static_cast<int>(size(forward<R>(r)));
}
template <class R, class I>
int len(R&& r, I i) {
return static_cast<int>(distance(begin(forward<R>(r)), i));
}
template <class T, class U>
bool chmin(T& x, U&& y) {
return y < x && (x = forward<U>(y), true);
}
template <class T, class U>
bool chmax(T& x, U&& y) {
return x < y && (x = forward<U>(y), true);
}
template <class T>
ostream& operator<<(ostream& os, const vector<T>& v) {
auto sep = "";
for (e : v) {
os << exchange(sep, " ") << e;
}
return os;
}
template <class T>
auto operator<<(ostream& os, T&& t) -> decltype(tuple_cat(t), os) {
auto f = [&](auto&&... args) -> ostream& {
[[maybe_unused]] auto sep = "";
(..., (os << exchange(sep, " ") << forward<decltype(args)>(args)));
return os;
};
return apply(f, forward<T>(t));
}
template <class T>
T input() {
T x;
cin >> x;
return x;
}
template <class... Ts>
void print(Ts&&... xs) {
cout << forward_as_tuple(forward<Ts>(xs)...) << '\n';
}
risujiroh