結果

問題 No.2248 max(C)-min(C)
ユーザー maimai
提出日時 2023-03-17 22:54:30
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 159 ms / 3,000 ms
コード長 6,504 bytes
コンパイル時間 2,724 ms
コンパイル使用メモリ 220,740 KB
実行使用メモリ 13,164 KB
最終ジャッジ日時 2024-09-18 12:01:28
合計ジャッジ時間 8,014 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
このコードへのチャレンジ
(要ログイン)

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 1 ms
5,248 KB
testcase_01 AC 2 ms
5,376 KB
testcase_02 AC 2 ms
5,376 KB
testcase_03 AC 2 ms
5,376 KB
testcase_04 AC 1 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 3 ms
5,376 KB
testcase_09 AC 3 ms
5,376 KB
testcase_10 AC 1 ms
5,376 KB
testcase_11 AC 3 ms
5,376 KB
testcase_12 AC 2 ms
5,376 KB
testcase_13 AC 3 ms
5,376 KB
testcase_14 AC 3 ms
5,376 KB
testcase_15 AC 3 ms
5,376 KB
testcase_16 AC 2 ms
5,376 KB
testcase_17 AC 3 ms
5,376 KB
testcase_18 AC 118 ms
9,388 KB
testcase_19 AC 14 ms
5,376 KB
testcase_20 AC 132 ms
13,032 KB
testcase_21 AC 132 ms
12,960 KB
testcase_22 AC 81 ms
8,544 KB
testcase_23 AC 51 ms
6,252 KB
testcase_24 AC 21 ms
5,376 KB
testcase_25 AC 117 ms
12,896 KB
testcase_26 AC 103 ms
8,900 KB
testcase_27 AC 116 ms
13,008 KB
testcase_28 AC 12 ms
5,376 KB
testcase_29 AC 103 ms
9,068 KB
testcase_30 AC 43 ms
5,868 KB
testcase_31 AC 137 ms
13,032 KB
testcase_32 AC 25 ms
5,376 KB
testcase_33 AC 39 ms
5,820 KB
testcase_34 AC 132 ms
13,028 KB
testcase_35 AC 131 ms
13,032 KB
testcase_36 AC 132 ms
13,036 KB
testcase_37 AC 64 ms
8,324 KB
testcase_38 AC 147 ms
13,032 KB
testcase_39 AC 157 ms
13,028 KB
testcase_40 AC 145 ms
12,904 KB
testcase_41 AC 133 ms
9,232 KB
testcase_42 AC 159 ms
13,164 KB
testcase_43 AC 125 ms
12,864 KB
testcase_44 AC 151 ms
13,164 KB
testcase_45 AC 104 ms
8,852 KB
testcase_46 AC 55 ms
5,972 KB
testcase_47 AC 145 ms
13,032 KB
testcase_48 AC 81 ms
13,032 KB
testcase_49 AC 153 ms
13,036 KB
testcase_50 AC 135 ms
13,024 KB
testcase_51 AC 137 ms
13,160 KB
testcase_52 AC 133 ms
13,164 KB
testcase_53 AC 21 ms
5,376 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 #

#pragma GCC optimize("O3")
#include <bits/stdc++.h>

// clang-format off
using namespace std;
using ll = long long int;

#define all(v) (v).begin(),(v).end()
#define repeat(cnt,l) for(typename remove_const<typename remove_reference<decltype(l)>::type>::type cnt={};(cnt)<(l);++(cnt))
#define rrepeat(cnt,l) for(auto cnt=(l)-1;0<=(cnt);--(cnt))
#define iterate(cnt,b,e) for(auto cnt=(b);(cnt)!=(e);++(cnt))
#define upto(cnt,b,e,step) for(auto cnt=(b);(cnt)<=(e);(cnt)+=(step))
#define downto(cnt,b,e,step) for(auto cnt=(b);(e)<=(cnt);(cnt)-=(step))
const long long MD = 998244353; const long double PI = 3.1415926535897932384626433832795L;
template<typename T1, typename T2> inline ostream& operator <<(ostream &o, const pair<T1, T2> p) { o << '(' << p.first << ':' << p.second << ')'; return o; }
template<typename T> inline T& chmax(T& to, const T& val) { return to = max(to, val); }
template<typename T> inline T& chmin(T& to, const T& val) { return to = min(to, val); }
void bye(string s, int code = 0) { cout << s << endl; exit(code); }
mt19937_64 randdev(8901016);
template<typename T, typename Random = decltype(randdev), typename enable_if<is_integral<T>::value>::type* = nullptr>
inline T rand(T l, T h, Random& rand = randdev) { return uniform_int_distribution<T>(l, h)(rand); }
template<typename T, typename Random = decltype(randdev), typename enable_if<is_floating_point<T>::value>::type* = nullptr>
inline T rand(T l, T h, Random& rand = randdev) { return uniform_real_distribution<T>(l, h)(rand); }template<typename T>
static ostream& operator<<(ostream& o, const std::vector<T>& v) {
  o << "[ "; for(const auto& e : v) o<<e<<' '; return o << ']';
}

template <typename I> struct MyRangeFormat{ I b,e; MyRangeFormat(I _b, I _e):b(_b),e(_e){} };
template<typename I> static ostream& operator<<(ostream& o, const MyRangeFormat<I>& f) {
  o << "[ "; iterate(i,f.b,f.e) o<<*i<<' '; return o << ']';
}
template <typename I> struct MyMatrixFormat{
  const I& p; long long n, m;
  MyMatrixFormat(const I& _p, long long _n, long long _m):p(_p),n(_n),m(_m){}
};
template<typename I> static ostream& operator<<(ostream& o, const MyMatrixFormat<I>& f) {
  o<<'\n'; repeat(i,(f.n)) { repeat(j,f.m) o<<f.p[i][j]<<' '; o<<'\n'; }
  return o;
}
struct LOG_t { ~LOG_t() { cout << endl; } };
#define LOG (LOG_t(),cout<<'L'<<__LINE__<<": ")
#define FMTA(m,w) (MyRangeFormat<decltype(m+0)>(m,m+w))
#define FMTR(b,e) (MyRangeFormat<decltype(e)>(b,e))
#define FMTV(v) FMTR(v.begin(),v.end())
#define FMTM(m,h,w) (MyMatrixFormat<decltype(m+0)>(m,h,w))

#if defined(_WIN32) || defined(_WIN64)
#define getc_x _getc_nolock
#define putc_x _putc_nolock
#elif defined(__GNUC__)
#define getc_x getc_unlocked
#define putc_x putc_unlocked
#else
#define getc_x getc
#define putc_x putc
#endif
class MaiScanner {
  FILE* fp_;
  constexpr bool isvisiblechar(char c) noexcept { return (0x21<=(c)&&(c)<=0x7E); }
public:
  inline MaiScanner(FILE* fp):fp_(fp){}
  template<typename T> void input_integer(T& var) noexcept {
    var = 0; T sign = 1;
    int cc = getc_x(fp_);
    for (; cc < '0' || '9' < cc; cc = getc_x(fp_))
      if (cc == '-') sign = -1;
    for (; '0' <= cc && cc <= '9'; cc = getc_x(fp_))
      var = (var << 3) + (var << 1) + cc - '0';
    var = var * sign;
  }
  inline int c() noexcept { return getc_x(fp_); }
  template<typename T, typename enable_if<is_integral<T>::value, nullptr_t>::type = nullptr>
  inline MaiScanner& operator>>(T& var) noexcept { input_integer<T>(var); return *this; }
  inline MaiScanner& operator>>(string& var) {
    int cc = getc_x(fp_);
    for (; !isvisiblechar(cc); cc = getc_x(fp_));
    for (; isvisiblechar(cc); cc = getc_x(fp_))
      var.push_back(cc);
    return *this;
  }
  template<typename IT> inline void in(IT begin, IT end) { for (auto it = begin; it != end; ++it) *this >> *it; }
};
class MaiPrinter {
  FILE* fp_;
public:
  inline MaiPrinter(FILE* fp):fp_(fp){}
  template<typename T>
  void output_integer(T var) noexcept {
    if (var == 0) { putc_x('0', fp_); return; }
    if (var < 0)
      putc_x('-', fp_),
      var = -var;
    char stack[32]; int stack_p = 0;
    while (var)
      stack[stack_p++] = '0' + (var % 10),
      var /= 10;
    while (stack_p)
      putc_x(stack[--stack_p], fp_);
  }
  inline MaiPrinter& operator<<(char c) noexcept { putc_x(c, fp_); return *this; }
  template<typename T, typename enable_if<is_integral<T>::value, nullptr_t>::type = nullptr>
  inline MaiPrinter& operator<<(T var) noexcept { output_integer<T>(var); return *this; }
  inline MaiPrinter& operator<<(const char* str_p) noexcept { while (*str_p) putc_x(*(str_p++), fp_); return *this; }
  inline MaiPrinter& operator<<(const string& str) {
    const char* p = str.c_str();
    const char* l = p + str.size();
    while (p < l) putc_x(*p++, fp_);
    return *this;
  }
  template<typename IT> void join(IT begin, IT end, char sep = ' ') { for (bool b = 0; begin != end; ++begin, b = 1) b ? *this << sep << *begin : *this << *begin; }
};
MaiScanner scanner(stdin);
MaiPrinter printer(stdout);
// clang-format on

// max - min を固定して判定できないか?

// 数直線上に ai, bi, avg(a,b) を置く。
// 尺取りで個数を管理する

//

int N;
int A[200010], B[200010];

//

// val, i
vector<pair<int, int>> lis;

bool check(int width) {
  const int n = (int)lis.size();
  int tail = 0;
  // map<int, int> contains;
  vector<int> contains(N);
  int cont_var = 0;
  repeat(head, n) {
    auto p = lis[head];
    // LOG << "<" << p;
    if (contains[p.second] == 0) cont_var += 1;
    contains[p.second] += 1;
    while (tail < n && lis[tail].first + width < p.first) {
      // LOG << ">" << lis[tail];
      // auto it = contains.find(lis[tail].second);
      // assert(it != contains.end());
      // it->second -= 1;
      // if (it->second == 0) {
      //   contains.erase(it);
      // }
      int k = lis[tail].second;
      contains[k] -= 1;
      if (contains[k] == 0) cont_var -= 1;
      ++tail;
    }
    // if ((int)contains.size() == N) {
    if (cont_var == N) {
      return true;
    }
  }
  return false;
}

int main() {
  scanner >> N;
  scanner.in(A, A+N);
  scanner.in(B, B+N);
  
  repeat(i, N) {
    lis.emplace_back(A[i], i);
    lis.emplace_back(B[i], i);
    lis.emplace_back((A[i] + B[i])/2, i);
  }
  sort(all(lis));
  
  int ok = 1000000007;
  int ng = -1;
  while (ok - ng > 1) {
    int m = (ok + ng)/2;
    if (check(m))
      ok = m;
    else
      ng = m;
  }
  
  cout << ok << endl;
  
  return 0;
}
0