Update lca.cpp
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1 changed files with 3 additions and 3 deletions
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@ -1,7 +1,7 @@
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int d[200005], L[200005][20];
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vector<int> G[200005];
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int d[100001], L[100001][20];
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vector<int> G[100001];
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void dfs(int u, int p) {
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void dfs(int u = 1, int p = 0) {
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d[u] = d[p] + 1;
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L[u][0] = p;
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for (int i = 0; i < 16 && L[u][i]; i++) L[u][i + 1] = L[L[u][i]][i];
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