用于比较表示为链表的两个字符串的 Java 程序
给定两个字符串,表示为链表(每个字符都是链表中的一个节点)。编写一个与 strcmp()类似的函数 compare(),即如果两个字符串相同,则返回 0,如果第一个链表在字典序上更大,则返回 1,如果第二个字符串在字典序上更大,则返回-1。 例:
Input: list1 = g->e->e->k->s->a
list2 = g->e->e->k->s->b
Output: -1
Input: list1 = g->e->e->k->s->a
list2 = g->e->e->k->s
Output: 1
Input: list1 = g->e->e->k->s
list2 = g->e->e->k->s
Output: 0
Java 语言(一种计算机语言,尤用于创建网站)
// Java program to compare two strings
// represented as a linked list
// Linked List Class
class LinkedList
{
// Head of list
Node head;
static Node a, b;
// Node Class
static class Node
{
char data;
Node next;
// Constructor to create
// a new node
Node(char d)
{
data = d;
next = null;
}
}
int compare(Node node1,
Node node2)
{
if (node1 == null &&
node2 == null)
{
return 1;
}
while (node1 != null &&
node2 != null &&
node1.data == node2.data)
{
node1 = node1.next;
node2 = node2.next;
}
// if the list are different
// in size
if (node1 != null &&
node2 != null)
{
return (node1.data >
node2.data ? 1 : -1);
}
// if either of the list has
// reached end
if (node1 != null &&
node2 == null)
{
return 1;
}
if (node1 == null &&
node2 != null)
{
return -1;
}
return 0;
}
// Driver code
public static void main(String[] args)
{
LinkedList list = new LinkedList();
Node result = null;
list.a = new Node('g');
list.a.next = new Node('e');
list.a.next.next = new Node('e');
list.a.next.next.next =
new Node('k');
list.a.next.next.next.next =
new Node('s');
list.a.next.next.next.next.next =
new Node('b');
list.b = new Node('g');
list.b.next = new Node('e');
list.b.next.next = new Node('e');
list.b.next.next.next =
new Node('k');
list.b.next.next.next.next =
new Node('s');
list.b.next.next.next.next.next =
new Node('a');
int value;
value = list.compare(a, b);
System.out.println(value);
}
}
// This code is contributed by Mayank Jaiswal
输出:
1
更多详细信息,请参考完整的文章比较两个链表表示的字符串!
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