Update lca.cpp

Changes

1 changed files (+3/-3)

• Graph/lca.cpp
  • @@ -1,7 +1,7 @@
    - int d[200005], L[200005][20]; - vector<int> G[200005]; + int d[100001], L[100001][20]; + vector<int> G[100001]; - void dfs(int u, int p) { + void dfs(int u = 1, int p = 0) { d[u] = d[p] + 1; L[u][0] = p; for (int i = 0; i < 16 && L[u][i]; i++) L[u][i + 1] = L[L[u][i]][i];