From 307230346ec142002a7143456514c61939c626c2 Mon Sep 17 00:00:00 2001
From: Vtorygin Valerii <vtorygin.vv@gmail.com>
Date: Sun, 26 Jun 2022 00:54:25 +0300
Subject: [PATCH] Change fold to sum

---
 src/fn/hof.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fn/hof.md b/src/fn/hof.md
index 568c79d413..88918cb522 100644
--- a/src/fn/hof.md
+++ b/src/fn/hof.md
@@ -36,7 +36,7 @@ fn main() {
         (0..).map(|n| n * n)                             // All natural numbers squared
              .take_while(|&n_squared| n_squared < upper) // Below upper limit
              .filter(|&n_squared| is_odd(n_squared))     // That are odd
-             .fold(0, |acc, n_squared| acc + n_squared); // Sum them
+             .sum();                                     // Sum them
     println!("functional style: {}", sum_of_squared_odd_numbers);
 }
 ```