1 files changed, 0 insertions, 44 deletions
diff --git a/graph/hld.cpp b/graph/hld.cpp
deleted file mode 100644
index 65d3f5c..0000000
--- a/graph/hld.cpp
+++ /dev/null
@@ -1,44 +0,0 @@
-vector<vector<int>> adj;
-vector<int> sz, in, out, nxt, par;
-int counter;
-
-void dfs_sz(int v = 0, int from = -1) {
-	for (auto& u : adj[v]) if (u != from) {
-		dfs_sz(u, v);
-		sz[v] += sz[u];
-		if (adj[v][0] == from || sz[u] > sz[adj[v][0]]) {
-			swap(u, adj[v][0]); //changes adj!
-}}}
-
-void dfs_hld(int v = 0, int from = -1) {
-	par[v] = from;
-	in[v] = counter++;
-	for (int u : adj[v]) if (u != from) {
-		nxt[u] = (u == adj[v][0]) ? nxt[v] : u;
-		dfs_hld(u, v);
-	}
-	out[v] = counter;
-}
-
-void init(int root = 0) {
-	int n = sz(adj);
-	sz.assign(n, 1), nxt.assign(n, root), par.assign(n, -1);
-	in.resize(n), out.resize(n);
-	counter = 0;
-	dfs_sz(root);
-	dfs_hld(root);
-}
-
-template<typename F>
-void for_intervals(int u, int v, F&& f) {
-	for (;; v = par[nxt[v]]) {
-		if (in[v] < in[u]) swap(u, v);
-		f(max(in[u], in[nxt[v]]), in[v] + 1);
-		if (in[nxt[v]] <= in[u]) return;
-}}
-
-int get_lca(int u, int v) {
-	for (;; v = par[nxt[v]]) {
-		if (in[v] < in[u]) swap(u, v);
-		if (in[nxt[v]] <= in[u]) return u;
-}}