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Diffstat (limited to 'content/graph/virtualTree.cpp')
| -rw-r--r-- | content/graph/virtualTree.cpp | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/content/graph/virtualTree.cpp b/content/graph/virtualTree.cpp index 153ed0b..81ba001 100644 --- a/content/graph/virtualTree.cpp +++ b/content/graph/virtualTree.cpp @@ -2,14 +2,14 @@ vector<int> in, out; void virtualTree(vector<int> ind) { // indices of used nodes - sort(all(ind), [&](int x, int y) { return in[x] < in[y]; }); - for (int i = 1, n = sz(ind); i < n; i++) { + ranges::sort(ind, {}, [&](int x) { return in[x]; }); + for (int i = 1, n = ssize(ind); i < n; i++) { ind.push_back(lca(ind[i - 1], ind[i])); } - sort(all(ind), [&](int x, int y) { return in[x] < in[y]; }); - ind.erase(unique(all(ind)), ind.end()); + ranges::sort(ind, {}, [&](int x) { return in[x]; }); + ind.erase(begin(ranges::unique(ind)), end(ind)); - int n = sz(ind); + int n = ssize(ind); vector<vector<int>> tree(n); vector<int> st = {0}; for (int i = 1; i < n; i++) { |