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Update lca.cpp

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This commit is contained in:
Anthony Wang 2020-06-13 11:03:55 -05:00
parent 1324816155
commit 024ef56f57
1 changed files with 3 additions and 3 deletions
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6
Graph/lca.cpp
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@ -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];