結果
問題 | No.2696 Sign Creation |
ユーザー | Kude |
提出日時 | 2024-03-22 22:05:09 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 80 ms / 2,500 ms |
コード長 | 2,819 bytes |
コンパイル時間 | 3,864 ms |
コンパイル使用メモリ | 281,384 KB |
実行使用メモリ | 6,820 KB |
最終ジャッジ日時 | 2024-12-20 11:57:42 |
合計ジャッジ時間 | 5,255 ms |
ジャッジサーバーID (参考情報) |
judge2 / 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> 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<int element_size> struct array_set { int state[element_size]; // -1 if not in set else index in elems int elems[element_size]; int size = 0; array_set() { memset(state, -1, sizeof(int) * element_size); } void insert(int x) { if (state[x] == -1) { state[x] = size; elems[size] = x; size++; } } bool contains(int x) { return state[x] != -1; } int* begin() { return elems; } int* end() { return elems + size; } void clear() { while(size) state[elems[--size]] = -1; } void erase(int x) { // not tested int idx = state[x]; if (idx != -1) { state[x] = -1; size--; if (idx != size) { int y = elems[size]; state[y] = idx; elems[idx] = y; } } } }; } int main() { ios::sync_with_stdio(false); cin.tie(0); int h, w, n, d; cin >> h >> w >> n >> d; vector<P> didj; for (int i = -d; i <= d; i++) { for (int j = -d; j <= d; j++) { if (i == 0 && j == 0) continue; if (abs(i) + abs(j) <= d) didj.emplace_back(i, j); } } VVI id(h, VI(w, -1)); rep(i, n) { int x, y; cin >> x >> y; x--, y--; id[x][y] = i; } dsu uf(n); auto idxchk = [&](int i, int j) { return 0 <= i && i < h && 0 <= j && j < w; }; rep(i, h) rep(j, w) if (id[i][j] != -1) { for (auto [di, dj] : didj) { int ni = i + di, nj = j + dj; if (!idxchk(ni, nj)) continue; if (id[ni][nj] != -1) uf.merge(id[i][j], id[ni][nj]); } } int now = 0; rep(i, n) now += uf.leader(i) == i && uf.size(i) >= 2; int mn = h * w + 1, mx = -1; rep(i, h) rep(j, w) if (id[i][j] == -1) { static array_set<100010> st; st.clear(); for (auto [di, dj] : didj) { int ni = i + di, nj = j + dj; if (!idxchk(ni, nj) || id[ni][nj] == -1) continue; st.insert(uf.leader(id[ni][nj])); } int cnt = now; int new_size = 1; for (int i : st) { cnt -= uf.size(i) >= 2; new_size += uf.size(i); } cnt += new_size >= 2; chmin(mn, cnt); chmax(mx, cnt); } cout << mn << ' ' << mx << '\n'; }