結果

問題 No.1084 積の積
ユーザー penguinshunyapenguinshunya
提出日時 2020-06-19 22:20:55
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
WA  
実行時間 -
コード長 3,598 bytes
コンパイル時間 2,131 ms
コンパイル使用メモリ 210,944 KB
実行使用メモリ 10,268 KB
最終ジャッジ日時 2024-07-03 14:57:32
合計ジャッジ時間 3,611 ms
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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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 2 ms
6,816 KB
testcase_01 AC 2 ms
6,940 KB
testcase_02 AC 2 ms
6,940 KB
testcase_03 AC 2 ms
6,944 KB
testcase_04 WA -
testcase_05 AC 7 ms
6,944 KB
testcase_06 AC 32 ms
10,268 KB
testcase_07 AC 2 ms
6,944 KB
testcase_08 AC 2 ms
6,944 KB
testcase_09 AC 13 ms
6,940 KB
testcase_10 AC 2 ms
6,944 KB
testcase_11 AC 3 ms
6,944 KB
testcase_12 AC 13 ms
6,944 KB
testcase_13 AC 25 ms
8,704 KB
testcase_14 AC 11 ms
6,940 KB
testcase_15 AC 10 ms
6,944 KB
testcase_16 AC 29 ms
9,468 KB
testcase_17 AC 12 ms
6,944 KB
testcase_18 AC 19 ms
7,168 KB
testcase_19 AC 25 ms
8,704 KB
testcase_20 AC 7 ms
6,940 KB
testcase_21 AC 11 ms
6,944 KB
testcase_22 AC 9 ms
6,940 KB
testcase_23 AC 16 ms
6,940 KB
testcase_24 AC 15 ms
6,944 KB
testcase_25 AC 25 ms
8,704 KB
testcase_26 AC 25 ms
9,600 KB
testcase_27 AC 26 ms
9,472 KB
testcase_28 AC 24 ms
9,532 KB
testcase_29 AC 25 ms
9,600 KB
testcase_30 AC 24 ms
9,468 KB
testcase_31 AC 25 ms
9,600 KB
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 # 

#include <bits/stdc++.h>

#define rep(i, n) for (int i = 0; i < int(n); i++)
#define rrep(i, n) for (int i = int(n) - 1; i >= 0; i--)
#define reps(i, n) for (int i = 1; i <= int(n); i++)
#define rreps(i, n) for (int i = int(n); i >= 1; i--)
#define repc(i, n) for (int i = 0; i <= int(n); i++)
#define rrepc(i, n) for (int i = int(n); i >= 0; i--)
#define repi(i, a, b) for (int i = int(a); i < int(b); i++)
#define repic(i, a, b) for (int i = int(a); i <= int(b); i++)
#define all(a) (a).begin(), (a).end()
#define bit32(x) (1 << (x))
#define bit64(x) (1ll << (x))
#define sz(v) ((int) v.size())

using namespace std;

using i64 = long long;
using f80 = long double;
using vi32 = vector<int>;
using vi64 = vector<i64>;
using vf80 = vector<f80>;
using vstr = vector<string>;

void yes() { cout << "Yes" << endl; exit(0); }
void no() { cout << "No" << endl; exit(0); }
template <typename T> class pqasc : public priority_queue<T, vector<T>, greater<T>> {};
template <typename T> class pqdesc : public priority_queue<T, vector<T>, less<T>> {};
template <typename T> void amax(T &x, T y) { x = max(x, y); }
template <typename T> void amin(T &x, T y) { x = min(x, y); }
template <typename T> T exp(T x, i64 n, T e = 1) { T r = e; while (n > 0) { if (n & 1) r *= x; x *= x; n >>= 1; } return r; }
template <typename T> istream& operator>>(istream &is, vector<T> &v) { for (auto &x : v) is >> x; return is; }
template <typename T> ostream& operator<<(ostream &os, vector<T> &v) { rep(i, v.size()) { if (i) os << ' '; os << v[i]; } return os; }
void solve(); int main() { ios::sync_with_stdio(0); cin.tie(0); cout << fixed << setprecision(16); solve(); return 0; }

const int INF = 1001001001;
const int dx[] = {1, 0, -1, 0};
const int dy[] = {0, 1, 0, -1};

template <int mod>
struct ModInt {
  int x;
  ModInt(): x(0) {}
  ModInt(long long a) { x = a % mod; if (x < 0) x += mod; }
  ModInt &operator+=(ModInt that) { x = (x + that.x) % mod; return *this; }
  ModInt &operator-=(ModInt that) { x = (x + mod - that.x) % mod; return *this; }
  ModInt &operator*=(ModInt that) { x = (long long) x * that.x % mod; return *this; }
  ModInt &operator/=(ModInt that) { return *this *= that.inverse(); }
  ModInt inverse() {
    int a = x, b = mod, u = 1, v = 0;
    while (b) { int t = a / b; a -= t * b; u -= t * v; swap(a, b); swap(u, v); }
    return ModInt(u);
  }
  #define op(o, p) ModInt operator o(ModInt that) { return ModInt(*this) p that; }
    op(+, +=) op(-, -=) op(*, *=) op(/, /=)
  #undef op
  friend ostream& operator<<(ostream &os, ModInt m) { return os << m.x; }
};

using mint = ModInt<1000000007>;

void solve() {
  int n;
  cin >> n;
  vi32 a(n);
  cin >> a;
  {
    bool zero = false;
    rep(i, n) if (a[i] == 0) zero = true;
    if (zero) {
      cout << 0 << endl;
      return;
    }
  }
  using P = pair<int, int>;
  vector<vector<P>> event(n + 1);
  {
    i64 acc = 1;
    for (int l = 0, r = 0; l < n; l++) {
      while (r < n && acc * a[r] < (int) 1e9) {
        acc *= a[r];
        r += 1;
      }
      event[l].emplace_back(0, r - l);
      event[r].emplace_back(1, -1);
      acc /= a[l];
    }
  }
  i64 acc = 0;
  int cnt = 0;
  vi32 cnts(n);
  rep(i, n) {
    for (auto e : event[i]) {
      int kind, size;
      tie(kind, size) = e;
      if (kind == 0) {
        cnt += 1;
        acc += size;
      }
    }
    cnts[i] = acc;
    for (auto e : event[i]) {
      int kind, size;
      tie(kind, size) = e;
      if (kind == 1) {
        cnt -= 1;
      }
    }
    acc -= cnt;
  }
  mint ans = 1;
  rep(i, n) ans *= exp((mint) a[i], cnts[i]);
  cout << ans << endl;
}
0