結果

問題 No.489 株に挑戦
ユーザー koyumeishikoyumeishi
提出日時 2017-02-24 23:35:03
言語 C++14
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 802 ms / 1,000 ms
コード長 9,440 bytes
コンパイル時間 1,472 ms
コンパイル使用メモリ 123,532 KB
実行使用メモリ 132,580 KB
最終ジャッジ日時 2024-07-19 23:07:19
合計ジャッジ時間 7,614 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 243 ms
100,816 KB
testcase_01 AC 156 ms
66,116 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 3 ms
5,376 KB
testcase_04 AC 2 ms
5,376 KB
testcase_05 AC 2 ms
5,376 KB
testcase_06 AC 2 ms
5,376 KB
testcase_07 AC 3 ms
5,376 KB
testcase_08 AC 2 ms
5,376 KB
testcase_09 AC 2 ms
5,376 KB
testcase_10 AC 3 ms
5,376 KB
testcase_11 AC 2 ms
5,376 KB
testcase_12 AC 2 ms
5,376 KB
testcase_13 AC 2 ms
5,376 KB
testcase_14 AC 2 ms
5,376 KB
testcase_15 AC 16 ms
9,216 KB
testcase_16 AC 239 ms
101,368 KB
testcase_17 AC 49 ms
18,944 KB
testcase_18 AC 134 ms
58,816 KB
testcase_19 AC 109 ms
48,428 KB
testcase_20 AC 281 ms
115,732 KB
testcase_21 AC 68 ms
30,848 KB
testcase_22 AC 27 ms
13,696 KB
testcase_23 AC 179 ms
71,564 KB
testcase_24 AC 329 ms
132,580 KB
testcase_25 AC 2 ms
5,376 KB
testcase_26 AC 802 ms
125,160 KB
testcase_27 AC 353 ms
121,960 KB
testcase_28 AC 2 ms
5,376 KB
testcase_29 AC 2 ms
5,376 KB
testcase_30 AC 329 ms
132,456 KB
testcase_31 AC 288 ms
125,288 KB
testcase_32 AC 174 ms
71,952 KB
testcase_33 AC 316 ms
126,880 KB
testcase_34 AC 270 ms
111,968 KB
testcase_35 AC 108 ms
47,408 KB
testcase_36 AC 45 ms
21,632 KB
testcase_37 AC 168 ms
70,260 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
In function 'void {anonymous}::print(const H&) [with H = int]',
    inlined from 'void {anonymous}::print(const H&, const T& ...) [with H = int; T = {int}]' at main.cpp:30:106,
    inlined from 'void {anonymous}::println(const T& ...) [with T = {int, int}]' at main.cpp:31:65,
    inlined from 'int main()' at main.cpp:338:10:
main.cpp:29:53: warning: 'jj' may be used uninitialized [-Wmaybe-uninitialized]
   29 |   template<class H> void print(const H& head){ cout << head; }
      |                                                ~~~~~^~~~~~~
main.cpp: In function 'int main()':
main.cpp:325:10: note: 'jj' was declared here
  325 |   int ii,jj;
      |          ^~
In function 'void {anonymous}::print(const H&, const T& ...) [with H = int; T = {int}]',
    inlined from 'void {anonymous}::println(const T& ...) [with T = {int, int}]' at main.cpp:31:65,
    inlined from 'int main()' at main.cpp:338:10:
main.cpp:30:93: warning: 'ii' may be used uninitialized [-Wmaybe-uninitialized]
   30 |   template<class H, class ... T> void print(const H& head, const T& ... tail){ cout << head << " "; print(tail...); }
      |                                                                                ~~~~~~~~~~~~~^~~~~~
main.cpp: In function 'int main()':
main.cpp:325:7: note: 'ii' was declared here
  325 |   int ii,jj;
      |       ^~

ソースコード

diff # 

#include <iostream>
#include <vector>
#include <cstdio>
#include <sstream>
#include <map>
#include <string>
#include <algorithm>
#include <queue>
#include <cmath>
#include <functional>
#include <set>
#include <ctime>
#include <random>
#include <chrono>
#include <cassert>
#include <tuple>
#include <utility>
using namespace std;

namespace {
  using Integer = long long; //__int128;
  template<class T, class S> istream& operator >> (istream& is, pair<T,S>& p){return is >> p.first >> p.second;}
  template<class T> istream& operator >> (istream& is, vector<T>& vec){for(T& val: vec) is >> val; return is;}
  template<class T> istream& operator ,  (istream& is, T& val){ return is >> val;}
  template<class T, class S> ostream& operator << (ostream& os, const pair<T,S>& p){return os << p.first << " " << p.second;}
  template<class T> ostream& operator << (ostream& os, const vector<T>& vec){for(size_t i=0; i<vec.size(); i++) os << vec[i] << (i==vec.size()-1?"":" "); return os;}
  template<class T> ostream& operator ,  (ostream& os, const T& val){ return os << " " << val;}

  template<class H> void print(const H& head){ cout << head; }
  template<class H, class ... T> void print(const H& head, const T& ... tail){ cout << head << " "; print(tail...); }
  template<class ... T> void println(const T& ... values){ print(values...); cout << endl; }

  template<class H> void eprint(const H& head){ cerr << head; }
  template<class H, class ... T> void eprint(const H& head, const T& ... tail){ cerr << head << " "; eprint(tail...); }
  template<class ... T> void eprintln(const T& ... values){ eprint(values...); cerr << endl; }

  class range{ Integer start_, end_, step_; public: struct range_iterator{ Integer val, step_; range_iterator(Integer v, Integer step) : val(v), step_(step) {} Integer operator * (){return val;} void operator ++ (){val += step_;} bool operator != (range_iterator& x){return step_ > 0 ? val < x.val : val > x.val;} }; range(Integer len) : start_(0), end_(len), step_(1) {} range(Integer start, Integer end) : start_(start), end_(end), step_(1) {} range(Integer start, Integer end, Integer step) : start_(start), end_(end), step_(step) {} range_iterator begin(){ return range_iterator(start_, step_); } range_iterator   end(){ return range_iterator(  end_, step_); } };

  inline string operator "" _s (const char* str, size_t size){ return move(string(str)); }
  constexpr Integer my_pow(Integer x, Integer k, Integer z=1){return k==0 ? z : k==1 ? z*x : (k&1) ? my_pow(x*x,k>>1,z*x) : my_pow(x*x,k>>1,z);}
  constexpr Integer my_pow_mod(Integer x, Integer k, Integer M, Integer z=1){return k==0 ? z%M : k==1 ? z*x%M : (k&1) ? my_pow_mod(x*x%M,k>>1,M,z*x%M) : my_pow_mod(x*x%M,k>>1,M,z);}
  constexpr unsigned long long operator "" _ten (unsigned long long value){ return my_pow(10,value); }

  inline int k_bit(Integer x, int k){return (x>>k)&1;} //0-indexed

  mt19937 mt(chrono::duration_cast<chrono::nanoseconds>(chrono::steady_clock::now().time_since_epoch()).count());

  template<class T> string join(const vector<T>& v, const string& sep){ stringstream ss; for(size_t i=0; i<v.size(); i++){ if(i>0) ss << sep; ss << v[i]; } return ss.str(); }

  inline string operator * (string s, int k){ string ret; while(k){ if(k&1) ret += s; s += s; k >>= 1; } return ret; }
}
constexpr long long mod = 9_ten + 7;

class TrivialBitVector{
 public:
  vector<int> v;
  vector<int> rank_;
  vector<int> select_0;
  vector<int> select_1;

  TrivialBitVector(vector<int>& v_) : v(v_){
    rank_.resize(v.size()+1, 0);
    for(int i=1; i<=v.size(); i++){
      rank_[i] = rank_[i-1] + v[i-1];
    }

    for(int i=0; i<v.size(); i++){
      (v[i] ? select_1 : select_0).push_back( i );
    }
  }

  int at(int pos){
    assert(0 <= pos && pos < v.size());
    return v[pos];
  }

  //count of q in [0, ub)
  int rank(int q, int ub){
    assert(ub <= v.size());
    int ret = rank_[ub];
    if(q == 0) ret = ub - ret;
    return ret;
  }

  //the position of the (t+1)-th occurrence of q
  int select(int q, int t){
    auto& s = q ? select_1 : select_0;
    if(t >= s.size()) return -1;
    return s[t];
  }
};

// T = unsigned int / unsigned long long
// B = bitvector container type
template<class T, class B>
class WaveletMatrix{
  vector<B> m;
  vector<int> L_size;
  T lg; //left most bit
  T mx;
  const int len;

 public:
  WaveletMatrix(vector<T>& v) : len(v.size()){
    mx = *max_element(v.begin(), v.end());
    lg = 0;
    while((T(1)<<lg+1) <= mx) lg++;

    m.reserve(lg+1);
    L_size.resize(lg+1);

    deque<int> l,r;

    l.resize(len);
    iota(l.begin(), l.end(), 0);

    for(int k=0; k<=lg; k++){
      deque<int> l_, r_;
      vector<int> bits(len);

      L_size[k] = l.size();

      for(int i=0; i<l.size(); i++){
        bits[i] = (v[ l[i] ] >> (lg-k))&1;
        if( (v[ l[i] ] >> (lg-k))&1 ){
          r_.push_back( l[i] );
        }else{
          l_.push_back( l[i] );
        }
      }

      for(int i=0; i<r.size(); i++){
        bits[l.size() + i] = (v[ r[i] ] >> (lg-k))&1;
        if( (v[ r[i] ] >> (lg-k))&1 ){
          r_.push_back( r[i] );
        }else{
          l_.push_back( r[i] );
        }
      }

      swap(l, l_);
      swap(r, r_);
      m.emplace_back(bits);

      /*
      for(int i=0; i<len; i++){
        cerr << bits[i];
      }cerr << endl;
      */
    }
  }

  int count(T q, int lb, int ub){
    return rank(q, ub, lb, 0);
  }

  int count_less_than(T q, int lb, int ub){
    if(ub<=lb) return 0;
    if(q >= mx) return ub-lb;
    return rank_less_than_(q, lb, ub, 0);
  }

  //return t-th occurence position of q
  //if q is not in the list then return -1
  int select(T q, int t){
    if(q >= (T(1)<<lg+1)) return -1;
    return select(q,t, 0,len, 0);
  }


  //return (t+1)-th biggest {value, pos} in [lb,ub)
  pair<int,int> quantile(int lb, int ub, int t, int k=0){
    if(t >= ub-lb) return {-1,-1};

    int val = 0;
    int pos = lb;

    int r = m[k].rank(1, ub);
    int l = m[k].rank(1, lb);

    if(k==lg){
      if(r-l > t){
        pos = m[k].select(1, r-1 - t);
        return {1, pos};
      }else{
        pos = m[k].select(0, ub-1-t-l );
        return {0, pos};
      }
    }
    if( r-l > t ){
      auto tmp = quantile(L_size[k+1] + l, L_size[k+1] + r, t, k+1);
      val = (T(1)<<(lg-k)) | tmp.first;
      pos = m[k].select(1, tmp.second - L_size[k+1]);
    }else{
      auto tmp = quantile(lb-l, ub-r, t-(r-l), k+1);
      val = tmp.first;
      pos = m[k].select(0, tmp.second);
    }
    return {val, pos};
  }

  int quantile_pos(int lb, int ub, int t, int k=0){
    if(t >= ub-lb) return -1;

    int val = 0;
    int pos = lb;

    int r = m[k].rank(1, ub);
    int l = m[k].rank(1, lb);

    if(k==lg){
      if(r-l > t){
        return m[k].select(1, r-1 - t);
      }else{
        return m[k].select(0, ub-1-t-l );
      }
    }
    if( r-l > t ){
      auto tmp = quantile_pos(L_size[k+1] + l, L_size[k+1] + r, t, k+1);
      pos = m[k].select(1, tmp - L_size[k+1]);
    }else{
      auto tmp = quantile_pos(lb-l, ub-r, t-(r-l), k+1);
      pos = m[k].select(0, tmp);
    }
    return pos;
  }

  int quantile_val(int lb, int ub, int t, int k=0){
    if(t >= ub-lb) return -1;
    int val = 0;

    int r = m[k].rank(1, ub);
    int l = m[k].rank(1, lb);

    if(k==lg){
      if(r-l > t){
        return 1;
      }else{
        return 0;
      }
    }
    if( r-l > t ){
      auto tmp = quantile_val(L_size[k+1] + l, L_size[k+1] + r, t, k+1);
      val = (T(1)<<(lg-k)) | tmp;
    }else{
      auto tmp = quantile_val(lb-l, ub-r, t-(r-l), k+1);
      val = tmp;
    }
    return val;
  }

 private:

  //return count of the occurence of q in [0, ub)
  int rank(T q, int ub, int lb=0, int k=0){
    if(q > mx) return 0;
    //ub = min(len, ub);
    int bit = (q>>lg-k) & 1;
    int r = m[k].rank(bit, ub);
    int l = m[k].rank(bit, lb);
    if(k==lg) return r - l;
    if(bit == 0){
      return rank(q, r, l, k+1);
    }else{
      return rank(q, L_size[k+1] + r, L_size[k+1] + l, k+1);
    }
  }

  int rank_less_than_(T q, int lb, int ub, int k=0){
    if(q >= mx) return ub-lb;
    int res = 0;
    int bit = (q>>lg-k) & 1;
    int r = m[k].rank(bit, ub);
    int l = m[k].rank(bit, lb);
    if(bit == 1){
      res += ub-lb - (r-l);
    }
    if(k==lg) return res + r - l;
    if(bit == 0){
      return res + rank_less_than_(q, l, r, k+1);
    }else{
      return res + rank_less_than_(q, L_size[k+1] + l, L_size[k+1] + r, k+1);
    }
  }

  int select(T q, int t, int lb, int ub, int k){
    int bit = (q>>lg-k) & 1;

    int r = m[k].rank(bit, ub);
    int l = m[k].rank(bit, lb);

    if(k==lg){
      return (r-l > t) ? m[k].select(bit, l+t) : -1;
    }else{
      if(bit == 0){
        t = select(q, t, l,r, k+1);
      }else{
        t = select(q, t, L_size[k+1] + l, L_size[k+1] + r, k+1) - L_size[k+1];
      }
      if(t <= -1) return -1;
      
      return m[k].select(bit, t);
    }
  }

};



int main(){
  int n,d,k;
  cin >> n,d,k;

  vector<long long> x(n);
  cin >> x;
  for(int i=0; i<n; i++){
    x[i] = (x[i] << 32) + n - i;
  }

  x.resize(n+n+10, 0);

  WaveletMatrix<long long, TrivialBitVector> w(x);

  long long ans = -114514893;
  int ii,jj;
  for(int i=0; i<n; i++){
    int j = w.quantile_pos(i, i+d+1, 0);
    int vv = (x[j]>>32) - (x[i]>>32);
    if(ans < vv){
      ii = i;
      jj = j;
      ans = vv;
    }
  }

  println(ans * k);
  if(ans != 0)
  println(ii,jj);
  return 0;
}
0