結果

問題 No.2315 Flying Camera
ユーザー poyonpoyon
提出日時 2023-05-26 21:22:02
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 2 ms / 2,000 ms
コード長 9,973 bytes
コンパイル時間 2,078 ms
コンパイル使用メモリ 207,480 KB
実行使用メモリ 4,384 KB
最終ジャッジ日時 2023-08-26 09:50:09
合計ジャッジ時間 3,162 ms
ジャッジサーバーID
(参考情報)
judge13 / judge12
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
4,380 KB
testcase_01 AC 2 ms
4,380 KB
testcase_02 AC 1 ms
4,380 KB
testcase_03 AC 1 ms
4,380 KB
testcase_04 AC 1 ms
4,380 KB
testcase_05 AC 1 ms
4,376 KB
testcase_06 AC 2 ms
4,376 KB
testcase_07 AC 2 ms
4,376 KB
testcase_08 AC 1 ms
4,384 KB
testcase_09 AC 1 ms
4,376 KB
testcase_10 AC 2 ms
4,376 KB
testcase_11 AC 1 ms
4,376 KB
testcase_12 AC 2 ms
4,380 KB
testcase_13 AC 1 ms
4,380 KB
testcase_14 AC 2 ms
4,380 KB
testcase_15 AC 2 ms
4,380 KB
testcase_16 AC 1 ms
4,380 KB
testcase_17 AC 1 ms
4,376 KB
testcase_18 AC 2 ms
4,380 KB
testcase_19 AC 2 ms
4,380 KB
testcase_20 AC 1 ms
4,380 KB
testcase_21 AC 2 ms
4,376 KB
testcase_22 AC 1 ms
4,376 KB
testcase_23 AC 1 ms
4,376 KB
testcase_24 AC 1 ms
4,380 KB
testcase_25 AC 1 ms
4,376 KB
testcase_26 AC 2 ms
4,376 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 #

// clang-format off
#ifdef _LOCAL
    #include <pch.hpp>
#else
    #include <bits/stdc++.h>
    #define cerr if (false) cerr
    #define debug_bar
    #define debug(...)
    #define debug2(vv)
    #define debug3(vvv)
#endif

using namespace std;
using ll = long long;
using ld = long double;
using str = string;
using P = pair<ll,ll>;
using VP = vector<P>;
using VVP = vector<VP>;
using VC = vector<char>;
using VS = vector<string>;
using VVS = vector<VS>;
using VI = vector<int>;
using VVI = vector<VI>;
using VVVI = vector<VVI>;
using VLL = vector<ll>;
using VVLL = vector<VLL>;
using VVVLL = vector<VVLL>;
using VB = vector<bool>;
using VVB = vector<VB>;
using VVVB = vector<VVB>;
using VD = vector<double>;
using VVD = vector<VD>;
using VVVD = vector<VVD>;
#define FOR(i,l,r) for (ll i = (l); i < (r); ++i)
#define RFOR(i,l,r) for (ll i = (r)-1; (l) <= i; --i)
#define REP(i,n) FOR(i,0,n)
#define RREP(i,n) RFOR(i,0,n)
#define FORE(e,c) for (auto&& e : c)
#define ALL(c) (c).begin(), (c).end()
#define SORT(c) sort(ALL(c))
#define RSORT(c) sort((c).rbegin(), (c).rend())
#define MIN(c) *min_element(ALL(c))
#define MAX(c) *max_element(ALL(c))
#define COUNT(c,v) count(ALL(c),(v))
#define len(c) ((ll)(c).size())
#define BIT(b,i) (((b)>>(i)) & 1)
#define PCNT(b) ((ll)__builtin_popcountll(b))
#define LB(c,v) distance((c).begin(), lower_bound(ALL(c), (v)))
#define UB(c,v) distance((c).begin(), upper_bound(ALL(c), (v)))
#define UQ(c) do { SORT(c); (c).erase(unique(ALL(c)), (c).end()); (c).shrink_to_fit(); } while (0)
#define END(...) do { print(__VA_ARGS__); exit(0); } while (0)
constexpr ld EPS = 1e-10;
constexpr ld PI  = acosl(-1.0);
constexpr int inf = (1 << 30) - (1 << 15);   // 1,073,709,056
constexpr ll INF = (1LL << 62) - (1LL << 31);  // 4,611,686,016,279,904,256
template<class... T> void input(T&... a) { (cin >> ... >> a); }
void print() { cout << '\n'; }
template<class T> void print(const T& a) { cout << a << '\n'; }
template<class P1, class P2> void print(const pair<P1, P2>& a) { cout << a.first << " " << a.second << '\n'; }
template<class T, class... Ts> void print(const T& a, const Ts&... b) { cout << a; (cout << ... << (cout << ' ', b)); cout << '\n'; }
template<class T> void cout_line(const vector<T>& ans, int l, int r) { for (int i = l; i < r; i++) { if (i != l) { cout << ' '; } cout << ans[i]; } cout << '\n'; }
template<class T> void print(const vector<T>& a) { cout_line(a, 0, a.size()); }
template<class S, class T> bool chmin(S& a, const T b) { if (b < a) { a = b; return 1; } return 0; }
template<class S, class T> bool chmax(S& a, const T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> T SUM(const vector<T>& A) { return accumulate(ALL(A), T(0)); }
template<class T> vector<T> cumsum(const vector<T>& A, bool offset = false) { int N = A.size(); vector<T> S(N+1, 0); for (int i = 0; i < N; i++) { S[i+1] = S[i] + A[i]; } if (not offset) { S.erase(S.begin()); } return S; }
template<class T> string to_binary(T x, int B = 0) { string s; while (x) { s += ('0' + (x & 1)); x >>= 1; } while ((int)s.size() < B) { s += '0'; } reverse(s.begin(), s.end()); return s; }
template<class F> ll binary_search(const F& is_ok, ll ok, ll ng) { while (abs(ok - ng) > 1) { ll m = (ok + ng) / 2; (is_ok(m) ? ok : ng) = m; } return ok; }
template<class F> double binary_search_real(const F& is_ok, double ok, double ng, int iter = 90) { for (int i = 0; i < iter; i++) { double m = (ok + ng) / 2; (is_ok(m) ? ok : ng) = m; } return ok; }
template<class T> using PQ_max = priority_queue<T>;
template<class T> using PQ_min = priority_queue<T, vector<T>, greater<T>>;
template<class T> T pick(stack<T>& s) { assert(not s.empty()); T x = s.top(); s.pop(); return x; }
template<class T> T pick(queue<T>& q) { assert(not q.empty()); T x = q.front(); q.pop(); return x; }
template<class T> T pick_front(deque<T>& dq) { assert(not dq.empty()); T x = dq.front(); dq.pop_front(); return x; }
template<class T> T pick_back(deque<T>& dq) { assert(not dq.empty()); T x = dq.back(); dq.pop_back(); return x; }
template<class T> T pick(PQ_min<T>& pq) { assert(not pq.empty()); T x = pq.top(); pq.pop(); return x; }
template<class T> T pick(PQ_max<T>& pq) { assert(not pq.empty()); T x = pq.top(); pq.pop(); return x; }
template<class T> T pick(vector<T>& v) { assert(not v.empty()); T x = v.back(); v.pop_back(); return x; }
int to_int(const char c) { if (islower(c)) { return (c - 'a'); } if (isupper(c)) { return (c - 'A'); } if (isdigit(c)) { return (c - '0'); } assert(false); }
char to_a(const int i) { assert(0 <= i && i < 26); return ('a' + i); }
char to_A(const int i) { assert(0 <= i && i < 26); return ('A' + i); }
char to_d(const int i) { assert(0 <= i && i <= 9); return ('0' + i); }
ll min(int a, ll b) { return min((ll)a, b); }
ll min(ll a, int b) { return min(a, (ll)b); }
ll max(int a, ll b) { return max((ll)a, b); }
ll max(ll a, int b) { return max(a, (ll)b); }
ll mod(ll x, ll m) { assert(m > 0); return (x % m + m) % m; }
ll ceil(ll a, ll b) { if (b < 0) { return ceil(-a, -b); } assert(b > 0); return (a < 0 ? a / b : (a + b - 1) / b); }
ll floor(ll a, ll b) { if (b < 0) { return floor(-a, -b); } assert(b > 0); return (a > 0 ? a / b : (a - b + 1) / b); }
ll powint(ll x, ll n) { assert(n >= 0); if (n == 0) { return 1; }; ll res = powint(x, n>>1); res *= res; if (n & 1) { res *= x; } return res; }
pair<ll,ll> divmod(ll a, ll b) { assert(b != 0); ll q = floor(a, b); return make_pair(q, a - q * b); }
ll bitlen(ll b) { if (b <= 0) { return 0; } return (64LL - __builtin_clzll(b)); }
ll digitlen(ll n) { assert(n >= 0); if (n == 0) { return 1; } ll sum = 0; while (n > 0) { sum++; n /= 10; } return sum; }
ll msb(ll b) { return (b <= 0 ? -1 : (63 - __builtin_clzll(b))); }
ll lsb(ll b) { return (b <= 0 ? -1 : __builtin_ctzll(b)); }
// --------------------------------------------------------


// 中央値を管理するデータ構造
//   - size()   : O(1)
//   - empty()  : O(1)
//   - insert() : O(log N)
//   - erase()  : O(log N)
//   - get()    : O(1)
//   - query()  : O(1)
template <class T = ll>
struct Median {
  public:
    Median() {}

    // x を追加する
    //   - O(log N)
    void insert(const T& x) {
        if (empty()) { _size = 1; c1 = c2 = x; return; }

        if (_size & 1) {  // 奇数個
            assert(c1 == c2);
            if (x <= c1) {
                _insert_R(c2);
                _insert_L(x);
                c1 = *L.rbegin();
            } else {
                _insert_L(c1);
                _insert_R(x);
                c2 = *R.begin();
            }
        } else {  // 偶数個
            if (x <= c1) {
                _insert_L(x);
                c1 = c2 = *L.rbegin();
                _erase_L(prev(L.end()));
            } else {
                _insert_R(x);
                c1 = c2 = *R.begin();
                _erase_R(R.begin());
            }
        }
        _size++;
    }

    // x を削除して、その成否を返す
    //   - O(log N)
    bool erase(const T& x) {
        if (empty()) { return false; }
        if (_size == 1) { _size = 0; c1 = c2 = 0; return true; }

        if (_size & 1) {  // 奇数個
            assert(c1 == c2);
            if (x < c1) {
                if (not _try_erase_L(x)) { return false; }
                _insert_L(c1);
                c2 = *R.begin();
            } else if (c1 < x) {
                if (not _try_erase_R(x)) { return false; }
                _insert_R(c2);
                c1 = *L.rbegin();
            } else {
                c1 = *L.rbegin();
                c2 = *R.begin();
            }
        } else {  // 偶数個
            if (x <= c1) {
                if (not _try_erase_L(x)) { return false; }
                c1 = c2 = *R.begin();
                _erase_R(R.begin());
            } else if (c2 <= x) {
                if (not _try_erase_R(x)) { return false; }
                c1 = c2 = *L.rbegin();
                _erase_L(prev(L.end()));
            } else {
                return false;
            }
        }
        _size--;
        return true;
    }

    // 中央値を返す
    //   - O(1)
    //   - floor((N+1)/2) 番目に小さい要素を返す
    T get_l() const noexcept { return c1; }

    // 中央値を返す
    //   - O(1)
    //   - ceil((N+1)/2) 番目に小さい要素を返す
    T get_r() const noexcept { return c2; }

    // 「差の絶対値の総和」の最小値を返す
    //    - O(1)
    //    - min{Σ|x - a_i|}
    ll query() const noexcept {
        ll m = get_l();
        ll res = 0;
        res += (ll)L.size() * m - SL;
        res += SR - (ll)R.size() * m;
        return res;
    }

    // 要素数を返す
    //   - O(1)
    int size() const noexcept { return _size; }

    // 要素数が 0 か否かを返す
    //   - O(1)
    bool empty() const noexcept { return (_size == 0); }

  private:
    multiset<T> L, R;
    T c1 = 0, c2 = 0;
    ll SL = 0, SR = 0;
    int _size = 0;

    void _insert_L(const T& x) { SL += x; L.insert(x); }
    void _insert_R(const T& x) { SR += x; R.insert(x); }
    void _erase_L(const class multiset<T>::iterator& it) { SL -= *it; L.erase(it); }
    void _erase_R(const class multiset<T>::iterator& it) { SR -= *it; R.erase(it); }
    bool _try_erase_L(const T& x) {
        auto it = L.find(x);
        if (it == L.end()) { return false; }
        else { _erase_L(it); return true; }
    }
    bool _try_erase_R(const T& x) {
        auto it = R.find(x);
        if (it == R.end()) { return false; }
        else { _erase_R(it); return true; }
    }
};

// clang-format on
int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout << fixed << setprecision(15);

    ll N;
    input(N);
    VLL X(N), Y(N);
    REP (i, N) { input(X[i], Y[i]); }

    Median<ll> median_x;
    Median<ll> median_y;
    FORE(x, X) { median_x.insert(x); }
    FORE(y, Y) { median_y.insert(y); }

    ll ans = median_x.query() + median_y.query();
    print(ans);

    return 0;
}
0