1 files changed, 0 insertions, 32 deletions
diff --git a/datastructures/waveletTree.cpp b/datastructures/waveletTree.cpp
deleted file mode 100644
index 95ff207..0000000
--- a/datastructures/waveletTree.cpp
+++ /dev/null
@@ -1,32 +0,0 @@
-struct WaveletTree {
-	unique_ptr<WaveletTree> ln, rn;
-	vector<int> b = {0};
-	ll lo, hi;
-
-	WaveletTree(auto in) : lo(*ranges::min_element(in)),
-	                       hi(*ranges::max_element(in) + 1) {
-		ll mid = (lo + hi) / 2;
-		auto f = [&](ll x) { return x < mid; };
-		for (ll x: in) b.push_back(b.back() + f(x));
-		if (lo + 1 >= hi) return;
-		auto right = ranges::stable_partition(in, f);
-		ln = make_unique<WaveletTree>(
-		  ranges::subrange(begin(in), begin(right)));
-		rn = make_unique<WaveletTree>(right);
-	}
-
-	ll kth(int l, int r, int k) {
-		if (l >= r || k >= r - l) return -1;
-		if (lo + 1 >= hi) return lo;
-		int inLeft = b[r] - b[l];
-		if (k < inLeft) return ln->kth(b[l], b[r], k);
-		else return rn->kth(l-b[l], r-b[r], k-inLeft);
-	}
-
-	int countSmaller(int l, int r, ll k) {
-		if (l >= r || k <= lo) return 0;
-		if (hi <= k) return r - l;
-		return ln->countSmaller(b[l], b[r], k) +
-		       rn->countSmaller(l-b[l], r-b[r], k);
-	}
-};