1 files changed, 0 insertions, 21 deletions
diff --git a/graph/centroid.cpp b/graph/centroid.cpp
deleted file mode 100644
index 2494464..0000000
--- a/graph/centroid.cpp
+++ /dev/null
@@ -1,21 +0,0 @@
-vector<int> s;
-void dfs_sz(int v, int from = -1) {
-	s[v] = 1;
-	for (int u : adj[v]) if (u != from) {
-		dfs_sz(u, v);
-		s[v] += s[u];
-}}
-
-pair<int, int> dfs_cent(int v, int from, int n) {
-	for (int u : adj[v]) if (u != from) {
-		if (2 * s[u] == n) return {v, u};
-		if (2 * s[u] > n) return dfs_cent(u, v, n);
-	}
-	return {v, -1};
-}
-
-pair<int, int> find_centroid(int root) {
-	s.resize(sz(adj));
-	dfs_sz(root);
-	return dfs_cent(root, -1, s[root]);
-}