Solution.go

/**
 * Definition for singly-linked list.
 * type ListNode struct {
 *     Val int
 *     Next *ListNode
 * }
 */
func reverseList(head *ListNode) *ListNode {
	dummy := &ListNode{}
	curr := head
	for curr != nil {
		next := curr.Next
		curr.Next = dummy.Next
		dummy.Next = curr
		curr = next
	}
	return dummy.Next
}