結果
| 問題 |
No.2838 Diagonals
|
| コンテスト | |
| ユーザー |
risujiroh
|
| 提出日時 | 2024-08-09 22:14:38 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 9 ms / 2,000 ms |
| コード長 | 3,770 bytes |
| コンパイル時間 | 2,980 ms |
| コンパイル使用メモリ | 265,856 KB |
| 実行使用メモリ | 6,944 KB |
| 最終ジャッジ日時 | 2024-08-09 22:14:42 |
| 合計ジャッジ時間 | 4,031 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 20 |
ソースコード
#if __INCLUDE_LEVEL__ == 0
#include __BASE_FILE__
using Mint = atcoder::modint998244353;
void Solve() {
int h, w;
IN(h, w);
vector<string> s(h);
IN(s);
Mint ans = 1;
Mint inv2 = Mint(2).inv();
atcoder::dsu d(h * w);
for (int i : Rep(h)) {
for (int j : Rep(w)) {
if (s[i][j] == '#') {
ans *= 4;
if (i + 1 < h && s[i + 1][j] == '#') {
if (d.same(i * w + j, (i + 1) * w + j)) {
ans *= inv2;
} else {
d.merge(i * w + j, (i + 1) * w + j);
}
}
if (j + 1 < w && s[i][j + 1] == '#') {
if (d.same(i * w + j, i * w + j + 1)) {
ans *= inv2;
} else {
d.merge(i * w + j, i * w + j + 1);
}
}
}
}
}
OUT(ans);
}
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
Solve();
}
#elif __INCLUDE_LEVEL__ == 1
#include <bits/stdc++.h>
#include <atcoder/dsu>
#include <atcoder/modint>
template <class T> concept Range = std::ranges::range<T> && !std::convertible_to<T, std::string_view>;
template <class T> concept Tuple = std::__is_tuple_like<T>::value && !Range<T>;
namespace std {
istream& operator>>(istream& is, Range auto&& r) {
for (auto&& e : r) {
is >> e;
}
return is;
}
istream& operator>>(istream& is, Tuple auto&& t) {
return apply([&](auto&... xs) -> istream& { return (is >> ... >> xs); }, t);
}
ostream& operator<<(ostream& os, Range auto&& r) {
for (string_view sep = ""; auto&& e : r) {
os << exchange(sep, " ") << e;
}
return os;
}
ostream& operator<<(ostream& os, Tuple auto&& t) {
return apply([&](auto&... xs) -> ostream& {
[[maybe_unused]] string_view sep = "";
((os << exchange(sep, " ") << xs), ...);
return os; }, t);
}
template <class T, atcoder::internal::is_modint_t<T>* = nullptr>
istream& operator>>(istream& is, T& x) {
int v;
is >> v;
x = T::raw(v);
return is;
}
template <class T, atcoder::internal::is_modint_t<T>* = nullptr>
ostream& operator<<(ostream& os, const T& x) {
return os << x.val();
}
} // namespace std
#define DEF_INC_OR_DEC(op) \
auto& operator op(Tuple auto&&); \
auto& operator op(Range auto&& r) { \
for (auto&& e : r) { \
op e; \
} \
return r; \
} \
auto& operator op(Tuple auto&& t) { \
std::apply([](auto&... xs) { (op xs, ...); }, t); \
return t; \
}
DEF_INC_OR_DEC(++)
DEF_INC_OR_DEC(--)
#undef DEF_INC_OR_DEC
#define IN(...) cin >> forward_as_tuple(__VA_ARGS__)
#define OUT(...) cout << forward_as_tuple(__VA_ARGS__) << '\n'
using namespace std;
using views::filter, views::transform, views::take, views::drop;
constexpr auto Rev = views::reverse;
constexpr auto Rep(int l, int r) { return views::iota(min(l, r), r); }
constexpr auto Rep(int n) { return Rep(0, n); }
constexpr auto Rep1(int l, int r) { return Rep(l, r + 1); }
constexpr auto Rep1(int n) { return Rep(1, n + 1); }
constexpr auto DivFloor(auto x, auto y) { return x / y - ((x ^ y) < 0 && x % y != 0); }
constexpr auto DivCeil(auto x, auto y) { return x / y + (0 <= (x ^ y) && x % y != 0); }
constexpr auto Floor(auto x, auto y) { return DivFloor(x, y) * y; }
constexpr auto Floor(auto x, auto y, auto z) { return Floor(x - z, y) + z; }
constexpr auto Ceil(auto x, auto y) { return DivCeil(x, y) * y; }
constexpr auto Ceil(auto x, auto y, auto z) { return Ceil(x - z, y) + z; }
constexpr auto Mod(auto x, auto y) { return x - Floor(x, y); }
template <class T, class U = T> bool SetMin(T& x, U&& y) { return y < x && (x = forward<U>(y), true); }
template <class T, class U = T> bool SetMax(T& x, U&& y) { return x < y && (x = forward<U>(y), true); }
constexpr int INF = INT_MAX / 2;
constexpr int64_t INF64 = INT64_MAX / 2;
#endif // __INCLUDE_LEVEL__ == 1
risujiroh