結果
問題 | No.2436 Min Diff Distance |
ユーザー | Kude |
提出日時 | 2023-08-19 20:19:32 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 152 ms / 2,000 ms |
コード長 | 4,174 bytes |
コンパイル時間 | 3,635 ms |
コンパイル使用メモリ | 286,764 KB |
実行使用メモリ | 11,776 KB |
最終ジャッジ日時 | 2024-11-29 15:44:52 |
合計ジャッジ時間 | 6,653 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 150 ms
11,264 KB |
testcase_04 | AC | 150 ms
11,264 KB |
testcase_05 | AC | 152 ms
11,136 KB |
testcase_06 | AC | 151 ms
11,136 KB |
testcase_07 | AC | 152 ms
11,136 KB |
testcase_08 | AC | 151 ms
11,264 KB |
testcase_09 | AC | 2 ms
5,248 KB |
testcase_10 | AC | 2 ms
5,248 KB |
testcase_11 | AC | 101 ms
11,776 KB |
testcase_12 | AC | 53 ms
10,112 KB |
testcase_13 | AC | 99 ms
8,704 KB |
testcase_14 | AC | 17 ms
5,248 KB |
testcase_15 | AC | 145 ms
10,880 KB |
testcase_16 | AC | 67 ms
7,040 KB |
testcase_17 | AC | 128 ms
9,984 KB |
testcase_18 | AC | 115 ms
9,472 KB |
testcase_19 | AC | 131 ms
10,112 KB |
testcase_20 | AC | 89 ms
8,064 KB |
testcase_21 | AC | 39 ms
6,820 KB |
testcase_22 | AC | 17 ms
6,816 KB |
ソースコード
#include<bits/stdc++.h> namespace { #pragma GCC diagnostic ignored "-Wunused-function" #include<atcoder/all> #pragma GCC diagnostic warning "-Wunused-function" using 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 T> vector<T> manhattan_dist_max(const vector<pair<T, T>>& ps) { T v1, v2, v3, v4; v1 = v3 = numeric_limits<T>::max(); v2 = v4 = numeric_limits<T>::min(); for(auto [x, y] : ps) { T s = x + y; T t = -x + y; chmin(v1, s); chmax(v2, s); chmin(v3, t); chmax(v4, t); } vector<T> res(ps.size()); int i = 0; for(auto [x, y] : ps) { T s = x + y; T t = -x + y; res[i++] = max({s - v1, v2 - s, t - v3, v4 - t}); } return res; } template<class S, auto e, auto op, bool dual=false, bool cursor_indexing=true> struct BIT { vector<S> d; int n; template<class... Args> BIT(auto&&... args) : d(forward<decltype(args)>(args)...), n(d.size()) { if constexpr (dual) reverse(d.begin(), d.end()); for (int i = 1; i < n; i++) { int j = i + (i & -i); if (j < n) d[j] = op(d[j], d[i]); } } BIT(int n) : d(n, e()), n(n) {} void apply(int i, S x) { if constexpr (cursor_indexing) { assert(0 <= i && i <= n); if constexpr (dual) i = n - i; } else { assert(0 <= i && i < n); if constexpr (dual) i = n - 1 - i; } if (i == 0) { if (n > 0) d[i] = op(d[i], x); } else { while (i < n) { d[i] = op(d[i], x); i += i & -i; } } } S sum(int i) { if constexpr (cursor_indexing) { assert(0 <= i && i <= n); if constexpr (dual) i = n - i; if (i == 0) return e(); i--; } else { assert(0 <= i && i < n); if constexpr (dual) i = n - 1 - i; } S res = d[i]; while (i) { i -= i & -i; res = op(res, d[i]); } return res; } }; template<class T> vector<T> manhattan_dist_min(const vector<pair<T, T>>& points) { const int n = points.size(); assert(n >= 2); struct S { pair<T, T> p; int i; }; vector<S> ps(n); for (int i = 0; i < n; i++) ps[i] = {points[i], i}; sort(ps.begin(), ps.end(), [](const S& p1, const S& p2) { return p1.p.first < p2.p.first; }); vector<T> vals(n); for (int i = 0; i < n; i++) vals[i] = ps[i].p.second; sort(vals.begin(), vals.end()); vals.erase(unique(vals.begin(), vals.end()), vals.end()); const int sz = vals.size(); constexpr T inf_min = numeric_limits<T>::min() / 2; constexpr T inf_max = numeric_limits<T>::max() / 2; vector<T> ans(n, inf_max); vector<int> y_id(n); auto e = []{ return inf_min; }; auto op = [](T x, T y) { return max(x, y); }; BIT<T, e, op, false, false> bt1(sz); BIT<T, e, op, true, false> bt2(sz); for (int i = 0; i < n; i++) { auto [x, y] = ps[i].p; y_id[i] = lower_bound(vals.begin(), vals.end(), y) - vals.begin(); chmin(ans[ps[i].i], min( x + y - bt1.sum(y_id[i]), x - y - bt2.sum(y_id[i]) )); bt1.apply(y_id[i], x + y); bt2.apply(y_id[i], x - y); } bt1.d.assign(sz, e()); bt2.d.assign(sz, e()); for (int i = n - 1; i >= 0; i--) { auto [x, y] = ps[i].p; chmin(ans[ps[i].i], min( -bt2.sum(y_id[i]) - (x + y), -bt1.sum(y_id[i]) - (x - y) )); bt2.apply(y_id[i], -(x + y)); bt1.apply(y_id[i], -(x - y)); } return ans; } } int main() { ios::sync_with_stdio(false); cin.tie(0); int n; cin >> n; vector<pair<int, int>> xy(n); for(auto& [x, y] : xy) cin >> x >> y; VI mx = manhattan_dist_max(xy); VI mn = manhattan_dist_min(xy); int ans = 2001001001; rep(i, n) chmin(ans, mx[i] - mn[i]); cout << ans << '\n'; }