結果
問題 | No.754 畳み込みの和 |
ユーザー | sten_san |
提出日時 | 2022-01-22 16:41:36 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 24 ms / 5,000 ms |
コード長 | 2,689 bytes |
コンパイル時間 | 2,049 ms |
コンパイル使用メモリ | 203,860 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-05-05 15:54:39 |
合計ジャッジ時間 | 2,386 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 24 ms
5,248 KB |
testcase_01 | AC | 23 ms
5,376 KB |
testcase_02 | AC | 23 ms
5,376 KB |
ソースコード
#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); } #include <atcoder/modint> using mint = atcoder::modint1000000007; int main() { int n; cin >> n; auto a = vec<int>(uns, n + 1); auto b = vec<int>(uns, n + 1); for (auto &e : a) cin >> e; for (auto &e : b) cin >> e; mint sum = 0; for (auto v : a) { sum += v; } mint ans = 0; for (int i = 0; i <= n; ++i) { ans += b[i] * sum; sum -= a[n - i]; } cout << ans.val() << endl; }