diff options
Diffstat (limited to 'content/graph/reroot.cpp')
| -rw-r--r-- | content/graph/reroot.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/content/graph/reroot.cpp b/content/graph/reroot.cpp index cd63b3d..379c839 100644 --- a/content/graph/reroot.cpp +++ b/content/graph/reroot.cpp @@ -13,7 +13,7 @@ struct Reroot { T dfs0(int v, int from = -1) { T val = E; - for (auto& [u, w] : adj[v]) { + for (auto [u, w] : adj[v]) { if (u == from) continue; val = comb(val, takeChild(v, u, w, dfs0(u, v))); } |