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package com.todd.nowcoder;

import com.sun.deploy.util.LinkMouseListener;

/**

* @author todd

* @date 2020/9/3 17:18

* @description: 输入一个链表，反转链表后，输出新链表的表头。

*/

public class NC78 {

public class ListNode {

int val;

ListNode next = null;

ListNode(int val) {

this.val = val;

}

}

public ListNode ReverseList(ListNode head) {

ListNode pre = null;

ListNode curr = head;

while (curr != null) {

ListNode next = curr.next;

curr.next = pre;

pre = curr;

curr = next;

}

return pre;

}

}