dont use .size()

1 files changed, 1 insertions, 1 deletions

diff --git a/math/inversions.cpp b/math/inversions.cpp
index 02256ca..051408c 100644
--- a/math/inversions.cpp
+++ b/math/inversions.cpp
@@ -1,7 +1,7 @@
 ll inversions(const vector<ll>& v) {
 	Tree<pair<ll, ll>> t; //ordered statistics tree
 	ll res = 0;
-	for (ll i = 0; i < (ll)v.size(); i++) {
+	for (ll i = 0; i < sz(v); i++) {
 		res += i - t.order_of_key({v[i], i});
 		t.insert({v[i], i});
 	}