#include #include using namespace std; using namespace atcoder; //using mint = modint1000000007; //const int mod = 1000000007; //using mint = modint998244353; //const int mod = 998244353; //const int INF = 1e9; //const long long LINF = 1e18; #define rep(i, n) for (int i = 0; i < (n); ++i) #define rep2(i,l,r)for(int i=(l);i<(r);++i) #define rrep(i, n) for (int i = (n) - 1; i >= 0; --i) #define rrep2(i,l,r)for(int i=(r) - 1;i>=(l);--i) #define all(x) (x).begin(),(x).end() #define allR(x) (x).rbegin(),(x).rend() #define P pair template inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; } template inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; } vector

createDlist(int d) { vector

ret; rep2(j, -d, d + 1)rep2(k, -d, d + 1) { if (abs(j) + abs(k) > d)continue; ret.push_back({ j,k }); } return ret; } int main() { ios::sync_with_stdio(false); cin.tie(nullptr); int h, w, n, d; cin >> h >> w >> n >> d; vector index(h + 1, vector(w + 1, -1)); vector

xy(n); auto ds = createDlist(d); rep(i, n) { cin >> xy[i].first >> xy[i].second; index[xy[i].first][xy[i].second] = i; } dsu uf(n); rep(i, n) { for (auto &[dx, dy] : ds) { P np = xy[i]; int px = np.first + dx; int py = np.second + dy; if (px < 0 || px > h)continue; if (py < 0 || py > w)continue; int idx = index[px][py]; if (-1 == idx)continue; uf.merge(i, idx); } } int mx = 0; auto gs = uf.groups(); for (auto g : gs) { if (g.size() > 1)mx++; } int mn = mx; const int fir = mx; vectormemo(n); rep(i, h + 1) rep(j, w + 1) { if (-1 != index[i][j])continue; vectorv; for (auto &[dx, dy] : ds) { int px = i + dx; int py = j + dy; if (px < 0 || px > h)continue; if (py < 0 || py > w)continue; int idx = index[px][py]; if (-1 == idx)continue; int l = uf.leader(idx); if (!memo[l]) { memo[l] = true; v.push_back(l); } } if (v.empty())continue; int nsz = fir; int add = 0; int reduce = 0; for (auto e : v) { if (1 != uf.size(e))reduce++; else add++; memo[e] = false; } if (add)nsz++; else reduce--; nsz -= reduce; chmin(mn, nsz); chmax(mx, nsz); } cout << mn << " " << mx << endl; return 0; }