結果

問題 No.983 Convolution
ユーザー noshi91
提出日時 2020-02-11 15:32:14
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
WA  
実行時間 -
コード長 3,987 bytes
コンパイル時間 693 ms
コンパイル使用メモリ 88,404 KB
最終ジャッジ日時 2025-01-08 23:39:11
ジャッジサーバーID
(参考情報)
judge1 / judge5
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 1 WA * 2
other AC * 6 WA * 27
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

//#define NDEBUG
#include <algorithm>
#include <cstddef>
#include <cstdint>
#include <iostream>
#include <utility>
#include <vector>
namespace n91 {
using i8 = std::int_fast8_t;
using i32 = std::int_fast32_t;
using i64 = std::int_fast64_t;
using u8 = std::uint_fast8_t;
using u32 = std::uint_fast32_t;
using u64 = std::uint_fast64_t;
using isize = std::ptrdiff_t;
using usize = std::size_t;
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 fix_point : private F {
public:
explicit constexpr fix_point(F &&f) : F(std::forward<F>(f)) {}
template <class... Args>
constexpr decltype(auto) operator()(Args &&... args) const {
return F::operator()(*this, std::forward<Args>(args)...);
}
};
template <class F> constexpr decltype(auto) make_fix(F &&f) {
return fix_point<F>(std::forward<F>(f));
}
template <class T> T scan() {
T ret;
std::cin >> ret;
return ret;
}
} // namespace n91
#include <utility>
namespace n91 {
template <class T> constexpr T gcd(T m, T n) noexcept {
while (n != static_cast<T>(0)) {
m %= n;
std::swap(m, n);
}
return m;
}
template <class T> constexpr T lcm(const T &m, const T &n) noexcept {
return m / gcd(m, n) * n;
}
} // namespace n91
#include <algorithm>
#include <utility>
#include <vector>
namespace n91 {
template <class T> std::vector<T> divisors(const T &n) {
std::vector<T> ret;
T i = static_cast<T>(1);
while (i * i < n) {
if (n % i == static_cast<T>(0)) {
ret.push_back(i);
ret.push_back(n / i);
}
++i;
}
if (i * i == n) {
ret.push_back(i);
}
std::sort(ret.begin(), ret.end());
ret.shrink_to_fit();
return std::move(ret);
}
} // namespace n91
#include <functional>
#include <utility>
namespace n91 {
template <class T, class U, class Operate = std::multiplies<T>>
constexpr T power(T base, U exp, const Operate &oper = Operate(), T iden = 1) {
while (exp != 0) {
if (exp % 2 != 0) {
iden = oper(iden, base);
}
exp /= 2;
base = oper(base, base);
}
return iden;
}
} // namespace n91
namespace n91 {
void main_() {
/*
std::ios::sync_with_stdio(false);
std::cin.tie(nullptr);
//*/
const usize n = scan<usize>();
u64 g = 0;
for (const usize i : rep(0, n)) {
i64 a;
std::cin >> a;
if (a != -1) {
g = gcd<u64>(g, a);
}
}
if (g == 0) {
std::cout << "-1";
} else
std::cout << g * g << std::endl;
std::cout << std::endl;
}
} // namespace n91
int main() {
n91::main_();
return 0;
}
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