結果
| 問題 |
No.2825 Sum of Scores of Sets of Specified Sections
|
| コンテスト | |
| ユーザー |
noshi91
|
| 提出日時 | 2024-07-26 22:05:53 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 97 ms / 3,000 ms |
| コード長 | 4,379 bytes |
| コンパイル時間 | 2,004 ms |
| コンパイル使用メモリ | 205,352 KB |
| 最終ジャッジ日時 | 2025-02-23 18:40:23 |
|
ジャッジサーバーID (参考情報) |
judge3 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 1 |
| other | AC * 32 |
ソースコード
//#define NDEBUG
#pragma warning(disable : 4146)
#include <bits/stdc++.h>
namespace n91 {
using i32 = std::int32_t;
using i64 = std::int64_t;
using u32 = std::uint32_t;
using u64 = std::uint64_t;
using isize = std::ptrdiff_t;
using usize = std::size_t;
using f64 = double;
struct rep {
struct itr {
usize i;
constexpr itr(const usize i) noexcept : i(i) {}
void operator++() noexcept { ++i; }
constexpr usize operator*() const noexcept { return i; }
constexpr bool operator!=(const itr x) const noexcept { return i != x.i; }
};
const itr f, l;
constexpr rep(const usize f, const usize l) noexcept
: f(std::min(f, l)), l(l) {}
constexpr auto begin() const noexcept { return f; }
constexpr auto end() const noexcept { return l; }
};
struct revrep {
struct itr {
usize i;
constexpr itr(const usize i) noexcept : i(i) {}
void operator++() noexcept { --i; }
constexpr usize operator*() const noexcept { return i; }
constexpr bool operator!=(const itr x) const noexcept { return i != x.i; }
};
const itr f, l;
constexpr revrep(const usize f, const usize l) noexcept
: f(l - 1), l(std::min(f, l) - 1) {}
constexpr auto begin() const noexcept { return f; }
constexpr auto end() const noexcept { return l; }
};
template <class T> auto md_vec(const usize n, const T& value) {
return std::vector<T>(n, value);
}
template <class... Args> auto md_vec(const usize n, Args... args) {
return std::vector<decltype(md_vec(args...))>(n, md_vec(args...));
}
template <class T> constexpr T difference(const T& a, const T& b) noexcept {
return a < b ? b - a : a - b;
}
template <class T> void chmin(T& a, const T& b) noexcept {
if (b < a)
a = b;
}
template <class T> void chmax(T& a, const T& b) noexcept {
if (a < b)
a = b;
}
template <class F> class rec_lambda {
F f;
public:
rec_lambda(F&& f_) : f(std::forward<F>(f_)) {}
template <class... Args> auto operator()(Args &&... args) const {
return f(*this, std::forward<Args>(args)...);
}
};
template <class T> T scan() {
T ret;
std::cin >> ret;
return ret;
}
constexpr char eoln = '\n';
i64 floor_div(const i64 n, const i64 d) {
assert(d != 0);
return n / d - static_cast<i64>((n ^ d) < 0 && n % d != 0);
}
i64 ceil_div(const i64 n, const i64 d) {
assert(d != 0);
return n / d + static_cast<i64>((n ^ d) >= 0 && n % d != 0);
}
#ifdef N91_LOCAL
#define OJ_LOCAL(a, b) b
#else
#define OJ_LOCAL(a, b) a
#endif
} // namespace n91
#include <atcoder/modint>
using mint = atcoder::modint998244353;
#include <cassert>
#include <utility>
#include <vector>
namespace noshi91 {
template <class T> T determinant(std::vector<std::vector<T>> a) {
if (a.empty())
return 1;
const int n = a.size();
for (const auto& r : a)
assert(r.size() == n);
T ret = 1;
for (int i = 0; i < n; i++) {
for (int j = i; j < n; j++) {
if (a[j][i] != 0) {
if (i != j) {
std::swap(a[i], a[j]);
ret = -ret;
}
break;
}
}
if (a[i][i] == 0)
return 0;
ret *= a[i][i];
const T inv = 1 / a[i][i];
for (int j = i; j < n; j++)
a[i][j] *= inv;
for (int j = i + 1; j < n; j++) {
const T c = a[j][i];
for (int k = i; k < n; k++)
a[j][k] -= c * a[i][k];
}
}
return ret;
}
} // namespace noshi91
namespace n91 {
void main_() {
const usize h = scan<usize>();
const usize w = scan<usize>();
auto A = md_vec(h, w, mint(0)), B = A;
for (auto& r : A)
for (auto& e : r)
e = scan<u32>();
for (auto& r : B)
for (auto& e : r)
e = scan<u32>();
auto C = md_vec(h, h, mint(0));
for (const usize i : rep(0, h)) {
for (const usize j : rep(0, h)) {
for (const usize k : rep(0, w)) {
C[i][j] += A[i][k] * B[j][k];
}
}
}
for (const usize i : rep(0, h))
C[i][i] += 1;
std::cout << (noshi91::determinant(C) - 1).val() << eoln;
}
} // namespace n91
int main() {
//*
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
//*/
std::cout << std::fixed << std::setprecision(20);
n91::main_();
return 0;
}
noshi91