From 0c5444e63a2fa418c40818cbd6e7152e2a34beac Mon Sep 17 00:00:00 2001
From: "M.V. Hutz" <git@maximhutz.me>
Date: Sat, 17 Jan 2026 13:39:20 -0500
Subject: [PATCH] feat: saturday

---
 pkg/linked_list_cycle/main.go | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 pkg/linked_list_cycle/main.go

diff --git a/pkg/linked_list_cycle/main.go b/pkg/linked_list_cycle/main.go
new file mode 100644
index 0000000..67bd42d
--- /dev/null
+++ b/pkg/linked_list_cycle/main.go
@@ -0,0 +1,28 @@
+package linked_list_cycle
+
+type ListNode struct {
+	Val  int
+	Next *ListNode
+}
+
+func succeed(n *ListNode) *ListNode {
+	if n == nil {
+		return n
+	} else {
+		return n.Next
+	}
+}
+
+func HasCycle(head *ListNode) bool {
+	one, two := head, succeed(head)
+
+	for one != nil && two != nil {
+		if one == two {
+			return true
+		}
+
+		one, two = succeed(one), succeed(succeed(two))
+	}
+
+	return false
+}