#include using namespace std; using ll = long long; constexpr char newl = '\n'; struct UnionFind { //各要素が属する集合の代表(根)を管理する //もし、要素xが根であればdata[x]は負の値を取り、-data[x]はxが属する集合の大きさに等しい vector data; UnionFind(int sz) : data(sz, -1) {} bool unite(int x, int y) { x = find(x); y = find(y); bool is_union = (x != y); if (is_union) { if (data[x] > data[y]) swap(x, y); data[x] += data[y]; data[y] = x; } return is_union; } int find(int x) { if (data[x] < 0) { //要素xが根である return x; } else { data[x] = find(data[x]); //data[x]がxの属する集合の根でない場合、根になるよう更新される return data[x]; } } bool same(int x, int y) { return find(x) == find(y); } int size(int x) { return -data[find(x)]; } }; // https://satanic0258.github.io/snippets/data-structure/SegmentMap.html // Description: 区間をsetで管理するデータ構造(なお実装はmap).各クエリO(log区間数). // #### attention! : [l, r] ( include r, not [l, r) ) class SegmentMap : public std::map { private: bool flagToMergeAdjacentSegment; public: // if merge [l, c] and [c+1, r], set flagToMergeAdjacentSegment to true SegmentMap(bool flagToMergeAdjacentSegment) : flagToMergeAdjacentSegment(flagToMergeAdjacentSegment) {} // __exist -> iterator pair(l, r) (contain p) // noexist -> map.end() auto get(signed p) const { auto it = upper_bound(p); if (it == begin() || (--it)->second < p) return end(); return it; } // insert segment [l, r] void insert(signed l, signed r) { auto itl = upper_bound(l), itr = upper_bound(r + flagToMergeAdjacentSegment); if (itl != begin()) { if ((--itl)->second < l - flagToMergeAdjacentSegment) ++itl; } if (itl != itr) { l = std::min(l, itl->first); r = std::max(r, std::prev(itr)->second); erase(itl, itr); } (*this)[l] = r; } // remove segment [l, r] void remove(signed l, signed r) { auto itl = upper_bound(l), itr = upper_bound(r); if (itl != begin()) { if ((--itl)->second < l) ++itl; } if (itl == itr) return; int tl = std::min(l, itl->first), tr = std::max(r, std::prev(itr)->second); erase(itl, itr); if (tl < l) (*this)[tl] = l - 1; if (r < tr) (*this)[r + 1] = tr; } // Is p and q in same segment? bool same(signed p, signed q) const { const auto&& it = get(p); return it != end() && it->first <= q && q <= it->second; } }; int main() { cin.tie(nullptr); ios::sync_with_stdio(false); int n; ll a, b; cin >> n >> a >> b; vector x(n); for (int i = 0; i < n; i++) { cin >> x[i]; } SegmentMap sm(false); UnionFind uf(n); for (int i = 0; i < n; i++) { if (sm.get(i) != sm.end()) { continue; } queue q; q.push(i); sm.insert(i, i); while (!q.empty()) { int k = q.front(); q.pop(); { int L = lower_bound(x.begin(), x.end(), x[k] - b) - x.begin(); int R = upper_bound(x.begin(), x.end(), x[k] - a) - x.begin(); for (int j = L; j < R; j++) { if (sm.get(j) != sm.end()) { j = sm.get(j)->second; continue; } q.push(j); uf.unite(k, j); } if (L < R) sm.insert(L, R - 1); } { int L = lower_bound(x.begin(), x.end(), x[k] + a) - x.begin(); int R = upper_bound(x.begin(), x.end(), x[k] + b) - x.begin(); for (int j = L; j < R; j++) { if (sm.get(j) != sm.end()) { j = sm.get(j)->second; continue; } q.push(j); uf.unite(k, j); } if (L < R) sm.insert(L, R - 1); } } } for (int i = 0; i < n; i++) { cout << uf.size(i) << newl; } return 0; }