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authorGloria Mundi <gloria@gloria-mundi.eu>2024-11-16 01:24:14 +0100
committerGloria Mundi <gloria@gloria-mundi.eu>2024-11-16 01:24:14 +0100
commit98567ec798aa8ca2cfbcb85c774dd470f30e30d4 (patch)
tree5113d5cc24d1ad5f93810b6442ce584a36950dc8 /graph/centroid.cpp
parentad3856a6b766087df0036de0b556f4700a6498c9 (diff)
parent8d11c6c8213f46f0fa19826917c255edd5d43cb1 (diff)
mzuenni tests
Diffstat (limited to 'graph/centroid.cpp')
-rw-r--r--graph/centroid.cpp21
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]);
-}