1 files changed, 0 insertions, 27 deletions
diff --git a/math/inversionsMerge.cpp b/math/inversionsMerge.cpp
deleted file mode 100644
index 8235b11..0000000
--- a/math/inversionsMerge.cpp
+++ /dev/null
@@ -1,27 +0,0 @@
-// Laufzeit: O(n*log(n))
-ll merge(vector<ll>& v, vector<ll>& left, vector<ll>& right) {
-	int a = 0, b = 0, i = 0;
-	ll inv = 0;
-	while (a < sz(left) && b < sz(right)) {
-		if (left[a] < right[b]) v[i++] = left[a++];
-		else {
-			inv += sz(left) - a;
-			v[i++] = right[b++];
-		}
-	}
-	while (a < sz(left)) v[i++] = left[a++];
-	while (b < sz(right)) v[i++] = right[b++];
-	return inv;
-}
-
-ll mergeSort(vector<ll> &v) { // Sortiert v und gibt Inversionszahl zurück.
-	int n = sz(v);
-	vector<ll> left(n / 2), right((n + 1) / 2);
-	for (int i = 0; i < n / 2; i++) left[i] = v[i];
-	for (int i = n / 2; i < n; i++) right[i - n / 2] = v[i];
-
-	ll result = 0;
-	if (sz(left) > 1) result += mergeSort(left);
-	if (sz(right) > 1) result += mergeSort(right);
-	return result + merge(v, left, right);
-}