From 6b2fca07de4096accb02f66c313dff47c2303462 Mon Sep 17 00:00:00 2001
From: Riccardo Gerosa <riccardo.gerosa@nozominetworks.com>
Date: Mon, 24 Oct 2022 15:37:51 -0700
Subject: [PATCH] Address review comments

---
 src/math/big/int.go | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/src/math/big/int.go b/src/math/big/int.go
index 282de12e66..a26fdbb90e 100644
--- a/src/math/big/int.go
+++ b/src/math/big/int.go
@@ -235,13 +235,12 @@ func (z *Int) Binomial(n_, k_ int64) *Int {
 	//     i++
 	//     z /= i
 	// }
-	var n, k, i, d Int
+	var n, k, i, t Int
 	n.SetInt64(n_)
 	k.SetInt64(k_)
 	z.Set(intOne)
 	for i.Cmp(&k) < 0 {
-		d.Sub(&n, &i)
-		z.Mul(z, &d)
+		z.Mul(z, t.Sub(&n, &i))
 		i.Add(&i, intOne)
 		z.Quo(z, &i)
 	}