結果
| 問題 |
No.2287 ++ -- *=a /=a
|
| コンテスト | |
| ユーザー |
risujiroh
|
| 提出日時 | 2023-04-29 00:11:36 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 3,551 bytes |
| コンパイル時間 | 3,124 ms |
| コンパイル使用メモリ | 268,276 KB |
| 実行使用メモリ | 13,640 KB |
| 最終ジャッジ日時 | 2024-11-17 22:54:18 |
| 合計ジャッジ時間 | 11,594 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 26 TLE * 1 |
ソースコード
#if __INCLUDE_LEVEL__
void solve() {
auto [x, y, a] = input<int64_t, 3>();
auto go = [&](int64_t n) {
vector<int64_t> ret;
while (n) {
ret.push_back(n % a);
n /= a;
}
return ret;
};
auto vx = go(x);
auto vy = go(y);
show(vx);
show(vy);
vector<array<int64_t, 2>> f(size(vy) + 1);
f[0][1] = 1;
for (i : iota(1, ssize(f))) {
f[i][0] = 1 + min(vy[i - 1] + f[i - 1][0], vy[i - 1] + 1 + f[i - 1][1]);
f[i][1] =
1 + min(a - vy[i - 1] + f[i - 1][0], a - vy[i - 1] - 1 + f[i - 1][1]);
}
auto d = [&](auto&& vx, auto&& vy) {
int64_t ret = 0;
int64_t base = 1;
for (i : iota(0, max(ssize(vx), ssize(vy)))) {
ret += ((i < ssize(vy) ? vy[i] : 0) - (i < ssize(vx) ? vx[i] : 0)) * base;
base *= a;
}
return abs(ret);
};
show(f);
int64_t ans = abs(x - y);
for (k : iota(0, ssize(vx) + 1)) {
auto vx2 = vx | drop(k);
for (i : iota(0, ssize(vy) + 1)) {
auto vy2 = ALL(vector, vy | drop(i));
ans = min(ans, k + d(vx2, vy2) + f[i][0]);
{
int j = 0;
while (j < ssize(vy2) && vy2[j] + 1 == a) {
vy2[j] = 0;
++j;
}
if (j < ssize(vy2)) {
++vy2[j];
} else {
vy2.push_back(1);
}
}
ans = min(ans, k + d(vx2, vy2) + f[i][1]);
}
}
print(ans);
}
#else // __INCLUDE_LEVEL__
#include <bits/stdc++.h>
namespace std {
template <class T>
auto operator>>(istream& is, T&& t) -> decltype(tuple_cat(t), is) {
return apply([&is](auto&... xs) -> istream& { return (is >> ... >> xs); }, t);
}
template <class T>
auto operator<<(ostream& os, T&& t) -> decltype(tuple_cat(t), os) {
auto f = [&os](auto&... xs) -> ostream& {
[[maybe_unused]] auto sep = "";
((os << exchange(sep, " ") << xs), ...);
return os;
};
return apply(f, t);
}
template <class T>
istream& operator>>(istream& is, vector<T>& v) {
for (auto&& e : v) {
is >> e;
}
return is;
}
template <class T>
ostream& operator<<(ostream& os, const vector<T>& v) {
static constexpr auto SEP = is_convertible_v<int, T> ? " " : "\n";
for (auto sep = ""; const auto& e : v) {
os << exchange(sep, SEP) << e;
}
return os;
}
} // namespace std
template <class... Ts, class... Args>
auto input(Args&&... args) {
if constexpr (sizeof...(Ts) == 0) {
static_assert(sizeof...(Args) == 0);
return input<int>();
} else if constexpr (1 < sizeof...(Ts)) {
static_assert(sizeof...(Args) == 0);
return input<std::tuple<Ts...>>();
} else {
using T = std::tuple_element_t<0, std::tuple<Ts...>>;
if constexpr (sizeof...(args)) {
T x(std::forward<Args>(args)...);
std::cin >> x;
return x;
} else {
T x;
std::cin >> x;
return x;
}
}
}
template <class T, int N>
std::array<T, N> input() {
return input<std::array<T, N>>();
}
template <class... Ts>
void print(Ts&&... xs) {
std::cout << std::tie(xs...) << '\n';
}
using namespace std;
#define show(...) static_cast<void>(0)
#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...))
#define ALL(f, r, ...) lambda(f(begin($1), end($1), ##__VA_ARGS__))(r)
namespace std::ranges::views {
#include __BASE_FILE__
} // namespace std::ranges::views
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
for (_ : views::iota(0, input())) {
views::solve();
}
}
#endif // __INCLUDE_LEVEL__
risujiroh