結果
問題 | No.1874 Minimum of Sum of Rectangles |
ユーザー |
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提出日時 | 2022-03-11 23:10:37 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
WA
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 2,288 bytes |
コンパイル時間 | 2,185 ms |
コンパイル使用メモリ | 222,496 KB |
最終ジャッジ日時 | 2025-01-28 09:03:40 |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 37 WA * 2 |
ソースコード
#include<bits/stdc++.h>namespace {#pragma GCC diagnostic push#pragma GCC diagnostic ignored "-Wunused-function"#include<atcoder/all>#pragma GCC diagnostic popusing namespace std;using namespace atcoder;#define rep(i,n) for(int i = 0; i < (int)(n); i++)#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)#define all(x) begin(x), end(x)#define rall(x) rbegin(x), rend(x)template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }using ll = long long;using P = pair<int,int>;using VI = vector<int>;using VVI = vector<VI>;using VL = vector<ll>;using VVL = vector<VL>;template<class S>struct value_compression : vector<S> {bool built = false;using VS = vector<S>;using VS::vector;value_compression(vector<S> v) : vector<S>(move(v)) {}void build() {sort(VS::begin(), VS::end());VS::erase(unique(VS::begin(), VS::end()), VS::end());built = true;}template<class T>void convert(T first, T last) { for (; first != last; ++first) *first = (*this)(*first); }int operator()(S x) {assert(built);return lower_bound(VS::begin(), VS::end(), x) - VS::begin();}void clear() { VS::clear(); built = false; }};} int main() {ios::sync_with_stdio(false);cin.tie(0);int n;cin >> n;VI x(n), y(n);rep(i, n) cin >> x[i] >> y[i];value_compression<int> vx = x, vy = y;vx.build(), vy.build();const int szx = vx.size(), szy = vy.size();int lx = vx[0] - 1, rx = vx.back() + 1;auto score = [&](int a, int b) {ll res = 0;rep(i, n) res += (ll)abs(x[i] - a) * abs(y[i] - b);return res;};auto f = [&](int a) {int ly = vy[0] - 1, ry = vy.back();while(ry - ly > 2) {int cy1 = (ly + ry) / 2;int cy2 = cy1 + 1;if (score(a, cy1) < score(a, cy2)) ry = cy2;else ly = cy1;}return ly + 1;};while(rx - lx > 2) {int cx1 = (lx + rx) / 2;int cx2 = cx1 + 1;int y1 = f(cx1);int y2 = f(cx2);if (score(cx1, y1) < score(cx2, y2)) {rx = cx2;} else {lx = cx1;}}int ax = lx + 1;int ay = f(ax);ll ans = score(ax, ay);cout << ans << '\n';}