1 files changed, 0 insertions, 84 deletions
diff --git a/datastructures/lazyPropagation.cpp b/datastructures/lazyPropagation.cpp
deleted file mode 100644
index 2202a6f..0000000
--- a/datastructures/lazyPropagation.cpp
+++ /dev/null
@@ -1,84 +0,0 @@
-struct SegTree {
-	using T = ll; using U = ll;
-	static constexpr T E = 0; // Neutral element for combine
-	static constexpr U UF = 0; // Unused value by updates
-	int n;
-	vector<T> tree; vector<U> lazy;
-	int h;
-	vector<ll> k; // size of segments (optional)
-
-	SegTree(const vector<T>& a) : n(ssize(a) + 1), tree(2 * n),
-	//SegTree(int size, T def = E) : n(size + 1), tree(2 * n, def),
-			lazy(n, UF), h(__lg(2 * n)), k(2 * n, 1) {
-		ranges::copy(a, tree.begin() + n);
-		for (int i = n - 1; i > 0; i--) {
-			k[i] = 2 * k[2 * i];
-			tree[i] = comb(tree[2 * i], tree[2 * i + 1]);
-	}}
-
-	T comb(T a, T b) { return a + b; } // Modify this + E
-
-	void apply(int i, U val) { // And this + UF
-		tree[i] = val * k[i];
-		if (i < n) lazy[i] = val; // Don't forget this
-	}
-
-	void push_down(int i) {
-		if (lazy[i] != UF) {
-			apply(2 * i, lazy[i]);
-			apply(2 * i + 1, lazy[i]);
-			lazy[i] = UF;
-	}}
-
-	void push(int i) {
-		for (int s = h; s > 0; s--) push_down(i >> s);
-	}
-
-	void build(int i) {
-		while (i /= 2) {
-			push_down(i);
-			tree[i] = comb(tree[2 * i], tree[2 * i + 1]);
-	}}
-
-	void update(int l, int r, U val) {
-		l += n, r += n;
-		int l0 = l, r0 = r;
-		push(l0), push(r0);
-		for (; l < r; l /= 2, r /= 2) {
-			if (l&1) apply(l++, val);
-			if (r&1) apply(--r, val);
-		}
-		build(l0), build(r0);
-	}
-
-	T query(int l, int r) {
-		l += n, r += n;
-		push(l), push(r);
-		T resL = E, resR = E;
-		for (; l < r; l /= 2, r /= 2) {
-			if (l&1) resL = comb(resL, tree[l++]);
-			if (r&1) resR = comb(tree[--r], resR);
-		}
-		return comb(resL, resR);
-	}
-
-	// Optional:
-	ll lower_bound(int l, int r, T x) {
-		l += n, r += n;
-		push(l), push(r - 1);
-		int a[64] = {}, lp = 0, rp = 64;
-		for (; l < r; l /= 2, r /= 2) {
-			if (l&1) a[lp++] = l++;
-			if (r&1) a[--rp] = --r;
-		}
-		for (int i : a) if (i != 0 && tree[i] >= x) { // Modify this
-			while (i < n) {
-				push_down(i);
-				if (tree[2 * i] >= x) i = 2 * i; // And this
-				else i = 2 * i + 1;
-			}
-			return i - n;
-		}
-		return -1;
-	}
-};