結果

問題 No.1791 Repeat Multiplication
ユーザー sten_sansten_san
提出日時 2022-01-19 08:55:04
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 348 ms / 3,000 ms
コード長 2,750 bytes
コンパイル時間 1,988 ms
コンパイル使用メモリ 195,952 KB
最終ジャッジ日時 2025-01-27 13:04:18
ジャッジサーバーID
(参考情報)
judge5 / judge1
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 * 3
other AC * 32
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

#include <bits/stdc++.h>
using namespace std;
struct iofast_t {
iofast_t() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
}
} iofast;
struct uns_t {} uns;
template <typename Element, typename Head, typename ...Args>
auto vec(Element init, Head arg, Args ...args) {
if constexpr (sizeof...(Args) == 0) return vector(arg, init);
else return vector(arg, vec(init, args...));
}
template <typename Element, typename Head, typename ...Args>
auto vec(uns_t, Head arg, Args ...args) {
return vec(Element(), arg, args...);
}
template <typename Container>
auto distance(const Container &c, decltype(begin(c)) iter) {
return distance(begin(c), iter);
}
template <typename RIter, typename Compare = less<typename iterator_traits<RIter>::value_type>>
auto isort(RIter first, RIter last, Compare comp = Compare()) {
vector<int> i(distance(first, last));
iota(begin(i), end(i), 0);
sort(begin(i), end(i), [&](auto x, auto y) {
return comp(*(first + x), *(first + y));
});
return i;
}
template <typename, template <typename> typename, typename = void_t<>>
struct detect : false_type {};
template <typename T, template <typename> typename Check>
struct detect<T, Check, void_t<Check<T>>> : true_type {};
template <typename T, template <typename> typename Check>
constexpr inline bool detect_v = detect<T, Check>::value;
template <typename T>
using has_member_sort = decltype(declval<T>().sort());
template <typename Container, typename Compare = less<typename Container::value_type>>
auto sorted(Container c, Compare comp = Compare()) {
if constexpr (detect_v<Container, has_member_sort>) {
c.sort(comp);
return c;
}
else {
sort(begin(c), end(c), comp);
return c;
}
}
template <typename Container, typename Compare = equal_to<typename Container::value_type>>
auto uniqued(Container c, Compare comp = Compare()) {
c.erase(unique(begin(c), end(c), comp), end(c));
return c;
}
template <typename T, typename Compare = less<T>>
T &chmin(T &l, T r, Compare &&f = less<T>()) { return l = min(l, r, f); }
template <typename T, typename Compare = less<T>>
T &chmax(T &l, T r, Compare &&f = less<T>()) { return l = max(l, r, f); }
int main() {
int n, q; cin >> n >> q;
auto dp1 = vec<int64_t>(0, n + 1);
auto dp2 = vec<int64_t>(0, n + 1);
dp1[1] = 1;
for (int i = 1; i <= n; ++i) {
for (int j = 2; i * j <= n; ++j) {
dp1[i * j] += dp1[i];
}
}
for (int i = n; 0 < i; --i) {
dp2[i] = 1;
for (int j = 2; i * j <= n; ++j) {
dp2[i] += dp2[i * j];
}
}
while (q--) {
int x; cin >> x;
cout << dp1[x] * dp2[x] << endl;
}
}
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