結果

問題 No.1036 Make One With GCD 2
ユーザー ei1333333ei1333333
提出日時 2020-04-25 21:13:59
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 334 ms / 2,000 ms
コード長 4,317 bytes
コンパイル時間 2,334 ms
コンパイル使用メモリ 210,760 KB
実行使用メモリ 15,744 KB
最終ジャッジ日時 2024-09-16 13:59:13
合計ジャッジ時間 12,358 ms
ジャッジサーバーID
（参考情報） 		judge6 / judge1
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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 186 ms
7,708 KB
testcase_01 AC 247 ms
7,152 KB
testcase_02 AC 107 ms
15,488 KB
testcase_03 AC 15 ms
5,376 KB
testcase_04 AC 23 ms
5,632 KB
testcase_05 AC 2 ms
5,376 KB
testcase_06 AC 2 ms
5,376 KB
testcase_07 AC 67 ms
5,376 KB
testcase_08 AC 57 ms
5,376 KB
testcase_09 AC 241 ms
7,040 KB
testcase_10 AC 224 ms
6,656 KB
testcase_11 AC 243 ms
7,168 KB
testcase_12 AC 220 ms
6,656 KB
testcase_13 AC 328 ms
6,912 KB
testcase_14 AC 331 ms
7,008 KB
testcase_15 AC 315 ms
6,784 KB
testcase_16 AC 320 ms
6,784 KB
testcase_17 AC 334 ms
6,784 KB
testcase_18 AC 2 ms
5,376 KB
testcase_19 AC 3 ms
5,376 KB
testcase_20 AC 3 ms
5,376 KB
testcase_21 AC 3 ms
5,376 KB
testcase_22 AC 313 ms
6,784 KB
testcase_23 AC 235 ms
5,760 KB
testcase_24 AC 327 ms
6,912 KB
testcase_25 AC 286 ms
6,528 KB
testcase_26 AC 293 ms
6,656 KB
testcase_27 AC 2 ms
5,376 KB
testcase_28 AC 1 ms
5,376 KB
testcase_29 AC 2 ms
5,376 KB
testcase_30 AC 2 ms
5,376 KB
testcase_31 AC 1 ms
5,376 KB
testcase_32 AC 2 ms
5,376 KB
testcase_33 AC 2 ms
5,376 KB
testcase_34 AC 2 ms
5,376 KB
testcase_35 AC 1 ms
5,376 KB
testcase_36 AC 2 ms
5,376 KB
testcase_37 AC 1 ms
5,376 KB
testcase_38 AC 187 ms
15,744 KB
testcase_39 AC 186 ms
7,168 KB
testcase_40 AC 219 ms
5,632 KB
testcase_41 AC 312 ms
7,168 KB
testcase_42 AC 308 ms
7,124 KB
testcase_43 AC 318 ms
9,472 KB
testcase_44 AC 316 ms
8,320 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>

using namespace std;

using int64 = long long;
const int mod = 1e9 + 7;
// const int mod = 998244353;

const int64 infll = (1LL << 62) - 1;
const int inf = (1 << 30) - 1;

struct IoSetup {
  IoSetup() {
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    cout << fixed << setprecision(10);
    cerr << fixed << setprecision(10);
  }
} iosetup;


template< typename T1, typename T2 >
ostream &operator<<(ostream &os, const pair< T1, T2 > &p) {
  os << p.first << " " << p.second;
  return os;
}

template< typename T1, typename T2 >
istream &operator>>(istream &is, pair< T1, T2 > &p) {
  is >> p.first >> p.second;
  return is;
}

template< typename T >
ostream &operator<<(ostream &os, const vector< T > &v) {
  for(int i = 0; i < (int) v.size(); i++) {
    os << v[i] << (i + 1 != v.size() ? " " : "");
  }
  return os;
}

template< typename T >
istream &operator>>(istream &is, vector< T > &v) {
  for(T &in : v) is >> in;
  return is;
}

template< typename T1, typename T2 >
inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }

template< typename T1, typename T2 >
inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); }

template< typename T = int64 >
vector< T > make_v(size_t a) {
  return vector< T >(a);
}

template< typename T, typename... Ts >
auto make_v(size_t a, Ts... ts) {
  return vector< decltype(make_v< T >(ts...)) >(a, make_v< T >(ts...));
}

template< typename T, typename V >
typename enable_if< is_class< T >::value == 0 >::type fill_v(T &t, const V &v) {
  t = v;
}

template< typename T, typename V >
typename enable_if< is_class< T >::value != 0 >::type fill_v(T &t, const V &v) {
  for(auto &e : t) fill_v(e, v);
}

template< typename F >
struct FixPoint : F {
  FixPoint(F &&f) : F(forward< F >(f)) {}

  template< typename... Args >
  decltype(auto) operator()(Args &&... args) const {
    return F::operator()(*this, forward< Args >(args)...);
  }
};

template< typename F >
inline decltype(auto) MFP(F &&f) {
  return FixPoint< F >{forward< F >(f)};
}


template< typename SemiGroup, typename F >
struct SlidingWindowAggregation {

  struct Node {
    SemiGroup val, sum;

    Node(const SemiGroup &val, const SemiGroup &sum) : val(val), sum(sum) {}
  };

  SlidingWindowAggregation(F f) : f(f) {}


  const F f;
  stack< Node > front, back;

  bool empty() const {
    return front.empty() && back.empty();
  }

  size_t size() const {
    return front.size() + back.size();
  }

  SemiGroup fold_all() const {
    if(front.empty()) {
      return back.top().sum;
    } else if(back.empty()) {
      return front.top().sum;
    } else {
      return f(front.top().sum, back.top().sum);
    }
  }

  void push(const SemiGroup &x) {
    if(back.empty()) {
      back.emplace(x, x);
    } else {
      back.emplace(x, f(back.top().sum, x));
    }
  }

  void pop() {
    if(front.empty()) {
      front.emplace(back.top().val, back.top().val);
      back.pop();
      while(!back.empty()) {
        front.emplace(back.top().val, f(back.top().val, front.top().sum));
        back.pop();
      }
    }
    front.pop();
  }
};


template< typename T, typename F >
SlidingWindowAggregation< T, F > get_sliding_window_aggregation(F f) {
  return SlidingWindowAggregation< T, F >(f);
}


uint64_t gcd_impl(uint64_t n, uint64_t m) {
  constexpr uint64_t K = 5;
  for(int i = 0; i < 80; ++i) {
    uint64_t t = n - m;
    uint64_t s = n - m * K;
    bool q = t < m;
    bool p = t < m * K;
    n = q ? m : t;
    m = q ? t : m;
    if(m == 0) { return n; }
    n = p ? n : s;
  }
  return gcd_impl(m, n % m);
}

uint64_t gcd_pre(uint64_t n, uint64_t m) {
  for(int i = 0; i < 4; ++i) {
    uint64_t t = n - m;
    bool q = t < m;
    n = q ? m : t;
    m = q ? t : m;
    if(m == 0) { return n; }
  }
  return gcd_impl(n, m);
}

uint64_t gcd_fast(uint64_t n, uint64_t m) {
  return n > m ? gcd_pre(n, m) : gcd_pre(m, n);
}


int main() {
  int N;
  cin >> N;
  vector< uint64_t > A(N);
  cin >> A;
  auto SWAG = get_sliding_window_aggregation< uint64_t >(gcd_fast);
  vector< int > ans;
  int r = 0;
  uint64_t ret = 0;
  for(int i = 0; i < N; i++) {
    while(r < N && (SWAG.empty() || SWAG.fold_all() > 1)) {
      SWAG.push(A[r++]);
    }
    if(SWAG.fold_all() == 1) ret += N - r + 1;
    SWAG.pop();
  }
  cout << ret << endl;
}
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