結果
問題 | No.2696 Sign Creation |
ユーザー |
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提出日時 | 2024-03-22 22:29:16 |
言語 | C++17(gcc12) (gcc 12.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 220 ms / 2,500 ms |
コード長 | 5,005 bytes |
コンパイル時間 | 4,854 ms |
コンパイル使用メモリ | 274,820 KB |
実行使用メモリ | 66,128 KB |
最終ジャッジ日時 | 2024-12-20 12:07:43 |
合計ジャッジ時間 | 7,504 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 38 |
ソースコード
#include<bits/stdc++.h>#include<atcoder/all>using namespace std;using int64 = long long;const int64 infll = (1LL << 62) - 1;const int inf = (1 << 30) - 1;struct IoSetup {IoSetup() {cin.tie(nullptr);ios::sync_with_stdio(false);cout << fixed << setprecision(10);cerr << fixed << setprecision(10);}} iosetup;template< typename T1, typename T2 >ostream &operator<<(ostream &os, const pair< T1, T2 >& p) {os << p.first << " " << p.second;return os;}template< typename T1, typename T2 >istream &operator>>(istream &is, pair< T1, T2 > &p) {is >> p.first >> p.second;return is;}template< typename T >ostream &operator<<(ostream &os, const vector< T > &v) {for(int i = 0; i < (int) v.size(); i++) {os << v[i] << (i + 1 != v.size() ? " " : "");}return os;}template< typename T >istream &operator>>(istream &is, vector< T > &v) {for(T &in : v) is >> in;return is;}template< typename T1, typename T2 >inline bool chmax(T1 &a, T2 b) { return a < b && (a = b, true); }template< typename T1, typename T2 >inline bool chmin(T1 &a, T2 b) { return a > b && (a = b, true); }template< typename T = int64 >vector< T > make_v(size_t a) {return vector< T >(a);}template< typename T, typename... Ts >auto make_v(size_t a, Ts... ts) {return vector< decltype(make_v< T >(ts...)) >(a, make_v< T >(ts...));}template< typename T, typename V >typename enable_if< is_class< T >::value == 0 >::type fill_v(T &t, const V &v) {t = v;}template< typename T, typename V >typename enable_if< is_class< T >::value != 0 >::type fill_v(T &t, const V &v) {for(auto &e : t) fill_v(e, v);}template< typename F >struct FixPoint : F {explicit FixPoint(F &&f) : F(forward< F >(f)) {}template< typename... Args >decltype(auto) operator()(Args &&... args) const {return F::operator()(*this, forward< Args >(args)...);}};template< typename F >inline decltype(auto) MFP(F &&f) {return FixPoint<F>{forward<F>(f)};}#line 1 "structure/union-find/union-find-undo.hpp"struct UnionFindUndo {vector< int > data;stack< pair< int, int > > history;UnionFindUndo(int sz) {data.assign(sz, -1);}bool unite(int x, int y) {x = find(x), y = find(y);history.emplace(x, data[x]);history.emplace(y, data[y]);if(x == y) return (false);if(data[x] > data[y]) swap(x, y);data[x] += data[y];data[y] = x;return (true);}int find(int k) {if(data[k] < 0) return (k);return (find(data[k]));}int size(int k) {return (-data[find(k)]);}void undo() {data[history.top().first] = history.top().second;history.pop();data[history.top().first] = history.top().second;history.pop();}void snapshot() {while(history.size()) history.pop();}void rollback() {while(history.size()) undo();}};int main() {int H, W, N, D;cin >> H >> W >> N >> D;auto mp = make_v< int >(H, W);fill_v(mp, -1);UnionFindUndo uf(N + 1);int sz = N, one = 0;for(int i = 0; i < N; i++) {int y, x;cin >> y >> x;--y, --x;auto unite = [&](int ny, int nx) {if(ny < 0 or nx < 0 or ny >= H or nx >= W) {return;}if(~mp[ny][nx]) {sz -= uf.unite(mp[ny][nx], i);}};for(int j = 0; j <= D; j++) {for(int k = 0; j + k <= D; k++) {unite(y + j, x + k);unite(y - j, x + k);unite(y + j, x - k);unite(y - j, x - k);}}mp[y][x] = i;}for(int i = 0; i < N; i++) {if(uf.size(i) == 1) ++one;}int small = inf, large = 0;for(int y = 0; y < H; y++) {for(int x = 0; x < W; x++) {if(mp[y][x] == -1) {uf.snapshot();int sz2 = sz + 1;int one2 = one + 1;set< int > st;auto unite2 = [&](int ny, int nx) {if(ny < 0 or nx < 0 or ny >= H or nx >= W) {return;}if(~mp[ny][nx]) {if(uf.size(mp[ny][nx]) == 1) st.emplace(uf.find(mp[ny][nx]));}};auto unite = [&](int ny, int nx) {if(ny < 0 or nx < 0 or ny >= H or nx >= W) {return;}if(~mp[ny][nx]) {sz2 -= uf.unite(mp[ny][nx], N);}};for(int j = 0; j <= D; j++) {for(int k = 0; j + k <= D; k++) {unite2(y + j, x + k);unite2(y - j, x + k);unite2(y + j, x - k);unite2(y - j, x - k);}}for(int j = 0; j <= D; j++) {for(int k = 0; j + k <= D; k++) {unite(y + j, x + k);unite(y - j, x + k);unite(y + j, x - k);unite(y - j, x - k);}}one2 -= uf.size(N) > 1;one2 -= st.size();chmin(small, sz2 - one2);chmax(large, sz2 - one2);uf.rollback();}}}cout << small << " " << large << endl;}