From 2ff696b7a72f484f435ffc37dcacedb6fa434b3b Mon Sep 17 00:00:00 2001 From: Gloria Mundi Date: Thu, 2 May 2024 22:18:05 +0200 Subject: remove sz() from Fenwick trees --- datastructures/fenwickTree.cpp | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'datastructures/fenwickTree.cpp') diff --git a/datastructures/fenwickTree.cpp b/datastructures/fenwickTree.cpp index 6c5ed91..8c73b78 100644 --- a/datastructures/fenwickTree.cpp +++ b/datastructures/fenwickTree.cpp @@ -1,15 +1,15 @@ vector tree; void update(int i, ll val) { - for (i++; i < sz(tree); i += (i & (-i))) tree[i] += val; + for (i++; i < ssize(tree); i += i & -i) tree[i] += val; } void init(int n) { - tree.assign(n + 1,0); + tree.assign(n + 1, 0); } ll prefix_sum(int i) { ll sum = 0; - for (; i > 0; i -= (i & (-i))) sum += tree[i]; + for (; i > 0; i -= i & -i) sum += tree[i]; return sum; } -- cgit v1.2.3