remove sz() from Fenwick trees

1 files changed, 7 insertions, 7 deletions

diff --git a/datastructures/fenwickTree2.cpp b/datastructures/fenwickTree2.cpp
index 43c3a32..086e785 100644
--- a/datastructures/fenwickTree2.cpp
+++ b/datastructures/fenwickTree2.cpp
@@ -1,21 +1,21 @@
 vector<ll> add, mul;
 
 void update(int l, int r, ll val) {
-	for (int tl = l + 1; tl < sz(add); tl += tl&(-tl))
+	for (int tl = l + 1; tl < ssize(add); tl += tl & -tl)
 		add[tl] += val, mul[tl] -= val * l;
-	for (int tr = r + 1; tr < sz(add); tr += tr&(-tr))
+	for (int tr = r + 1; tr < ssize(add); tr += tr & -tr)
 		add[tr] -= val, mul[tr] += val * r;
 }
 
 void init(vector<ll>& v) {
-	mul.assign(sz(v) + 1,0);
-	add.assign(sz(v) + 1,0);
-	for(int i = 0; i < sz(v); i++) update(i, i + 1, v[i]);
+	mul.assign(size(v) + 1, 0);
+	add.assign(size(v) + 1, 0);
+	for(int i = 0; i < ssize(v); i++) update(i, i + 1, v[i]);
 }
 
-ll prefix_sum (int i) {
+ll prefix_sum(int i) {
 	ll res = 0;
-	for (int ti = i; ti > 0; ti -= ti&(-ti))
+	for (int ti = i; ti > 0; ti -= ti & -ti)
 		res += add[ti] * i + mul[ti];
 	return res;
 }