結果

問題 No.2436 Min Diff Distance
ユーザー tokusakurai
提出日時 2023-08-18 22:55:23
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 358 ms / 2,000 ms
コード長 5,682 bytes
コンパイル時間 2,698 ms
コンパイル使用メモリ 213,276 KB
最終ジャッジ日時 2025-02-16 10:35:02
ジャッジサーバーID
（参考情報） 		judge1 / judge5
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ファイルパターン 結果
other AC * 23
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;
#define rep(i, n) for (int i = 0; i < (n); i++)
#define per(i, n) for (int i = (n)-1; i >= 0; i--)
#define rep2(i, l, r) for (int i = (l); i < (r); i++)
#define per2(i, l, r) for (int i = (r)-1; i >= (l); i--)
#define each(e, v) for (auto &e : v)
#define MM << " " <<
#define pb push_back
#define eb emplace_back
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
#define sz(x) (int)x.size()
using ll = long long;
using pii = pair<int, int>;
using pil = pair<int, ll>;
using pli = pair<ll, int>;
using pll = pair<ll, ll>;

template <typename T>
using minheap = priority_queue<T, vector<T>, greater<T>>;

template <typename T>
using maxheap = priority_queue<T>;

template <typename T>
bool chmax(T &x, const T &y) {
    return (x < y) ? (x = y, true) : false;
}

template <typename T>
bool chmin(T &x, const T &y) {
    return (x > y) ? (x = y, true) : false;
}

template <typename T>
int flg(T x, int i) {
    return (x >> i) & 1;
}

int pct(int x) { return __builtin_popcount(x); }
int pct(ll x) { return __builtin_popcountll(x); }
int topbit(int x) { return (x == 0 ? -1 : 31 - __builtin_clz(x)); }
int topbit(ll x) { return (x == 0 ? -1 : 63 - __builtin_clzll(x)); }
int botbit(int x) { return (x == 0 ? -1 : __builtin_ctz(x)); }
int botbit(ll x) { return (x == 0 ? -1 : __builtin_ctzll(x)); }

template <typename T>
void print(const vector<T> &v, T x = 0) {
    int n = v.size();
    for (int i = 0; i < n; i++) cout << v[i] + x << (i == n - 1 ? '\n' : ' ');
    if (v.empty()) cout << '\n';
}

template <typename T>
void printn(const vector<T> &v, T x = 0) {
    int n = v.size();
    for (int i = 0; i < n; i++) cout << v[i] + x << '\n';
}

template <typename T>
int lb(const vector<T> &v, T x) {
    return lower_bound(begin(v), end(v), x) - begin(v);
}

template <typename T>
int ub(const vector<T> &v, T x) {
    return upper_bound(begin(v), end(v), x) - begin(v);
}

template <typename T>
void rearrange(vector<T> &v) {
    sort(begin(v), end(v));
    v.erase(unique(begin(v), end(v)), end(v));
}

template <typename T>
vector<int> id_sort(const vector<T> &v, bool greater = false) {
    int n = v.size();
    vector<int> ret(n);
    iota(begin(ret), end(ret), 0);
    sort(begin(ret), end(ret), [&](int i, int j) { return greater ? v[i] > v[j] : v[i] < v[j]; });
    return ret;
}

template <typename T>
void reorder(vector<T> &a, const vector<int> &ord) {
    int n = a.size();
    vector<T> b(n);
    for (int i = 0; i < n; i++) b[i] = a[ord[i]];
    swap(a, b);
}

template <typename T>
T floor(T x, T y) {
    assert(y != 0);
    if (y < 0) x = -x, y = -y;
    return (x >= 0 ? x / y : (x - y + 1) / y);
}

template <typename T>
T ceil(T x, T y) {
    assert(y != 0);
    if (y < 0) x = -x, y = -y;
    return (x >= 0 ? (x + y - 1) / y : x / y);
}

template <typename S, typename T>
pair<S, T> operator+(const pair<S, T> &p, const pair<S, T> &q) {
    return make_pair(p.first + q.first, p.second + q.second);
}

template <typename S, typename T>
pair<S, T> operator-(const pair<S, T> &p, const pair<S, T> &q) {
    return make_pair(p.first - q.first, p.second - q.second);
}

template <typename S, typename T>
istream &operator>>(istream &is, pair<S, T> &p) {
    S a;
    T b;
    is >> a >> b;
    p = make_pair(a, b);
    return is;
}

template <typename S, typename T>
ostream &operator<<(ostream &os, const pair<S, T> &p) {
    return os << p.first << ' ' << p.second;
}

struct io_setup {
    io_setup() {
        ios_base::sync_with_stdio(false);
        cin.tie(NULL);
        cout << fixed << setprecision(15);
        cerr << fixed << setprecision(15);
    }
} io_setup;

constexpr int inf = (1 << 30) - 1;
constexpr ll INF = (1LL << 60) - 1;
// constexpr int MOD = 1000000007;
constexpr int MOD = 998244353;

template <typename T>
vector<T> manhattan_min(vector<T> xs, vector<T> ys) {
    assert(xs.size() == ys.size());
    int n = xs.size();
    vector<int> ord(n);
    iota(begin(ord), end(ord), 0);
    vector<pair<int, int>> es;
    for (int s = 0; s < 2; s++) {
        auto comp = [&](int i, int j) { return xs[i] + ys[i] < xs[j] + ys[j]; };
        sort(begin(ord), end(ord), comp);
        for (int t = 0; t < 2; t++) {
            map<T, int> mp;
            for (auto &i : ord) {
                for (auto it = mp.lower_bound(-ys[i]); it != end(mp); it = mp.erase(it)) {
                    int j = it->second;
                    if (xs[i] - ys[i] < xs[j] - ys[j]) break;
                    es.emplace_back(i, j);
                }
                mp[-ys[i]] = i;
            }
            if (t == 0) swap(xs, ys);
        }
        for (auto &e : xs) e = -e;
    }

    auto dist = [&](int i, int j) { return abs(xs[i] - xs[j]) + abs(ys[i] - ys[j]); };

    vector<T> ret(n, -1);
    for (auto [x, y] : es) {
        if (ret[x] == -1 || ret[x] > dist(x, y)) ret[x] = dist(x, y);
        if (ret[y] == -1 || ret[y] > dist(x, y)) ret[y] = dist(x, y);
    }
    return ret;
}

void solve() {
    int N;
    cin >> N;

    vector<int> xs(N), ys(N);
    int mi1 = inf, ma1 = -inf, mi2 = inf, ma2 = -inf;
    rep(i, N) {
        cin >> xs[i] >> ys[i];
        int z1 = xs[i] + ys[i], z2 = xs[i] - ys[i];
        chmin(mi1, z1), chmax(ma1, z1);
        chmin(mi2, z2), chmax(ma2, z2);
    }

    vector<int> ma(N, -1);
    rep(i, N) {
        int z1 = xs[i] + ys[i], z2 = xs[i] - ys[i];
        chmax(ma[i], max(ma1 - z1, z1 - mi1));
        chmax(ma[i], max(ma2 - z2, z2 - mi2));
    }

    auto mi = manhattan_min(xs, ys);

    int ans = inf;
    rep(i, N) chmin(ans, ma[i] - mi[i]);
    cout << ans << '\n';
}

int main() {
    int T = 1;
    // cin >> T;
    while (T--) solve();
}
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