Java [leetcode 2] Add Two Numbers 问题描述:You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list.Input: (2 -> 4 -> 3) + (5 ...
ListNode next){this.val = val; this.next = next;}*}*/publicListNodeaddTwoNumbers(ListNodel1,ListNodel2){ListNodedummy=newListNode(0);// 创建一个虚拟头节点ListNodecurrent=dummy;// 指针指向虚拟头节点intcarry=0;// 进位标志while(l1!=null||l2!=null){intx=l1!=...
classSolution {publicListNode addTwoNumbers(ListNode l1, ListNode l2) { ListNode l3=null;booleanadd =false;while(l1 !=null|| l2 !=null) {//位数相加intplus;if(l1 ==null) { plus=l2.val; }elseif(l2 ==null) { plus=l1.val; }else{ plus= l1.val +l2.val; }if(add) { plus++; ...
public static void main(String[] args) { ListNode l1 = new ListNode(2); l1.add(new ListNode(4)); l1.add(new ListNode(3)); ListNode l2 = new ListNode(5); l2.add(new ListNode(6)); l2.add(new ListNode(4)); ListNode listNode = new AddTwoNumbers().addTwoNumbers(l1, l2); Syste...
LeetCode-Java-2. Add Two Numbers 题目 You are given two non-empty linked lists representing two non-negative integers. The digits are stored in reverse order and each of their nodes contain a single digit. Add the two numbers and return it as a linked list....
dummy->2->1(cur)->3 dummy->3->2->1(cur) 代码如下: public ListNode addTwoNumbers(ListNode l1, ListNode l2) { ListNode rl1 = reverse(l1); ListNode rl2 = reverse(l2); ListNode result = new ListNode(0); int carry = 0; while(rl1 != null || rl2 != null || carry != 0) { ...
6 --show-bad-code - show inconsistent code (incorrectly decompiled) --no-imports - disable use of imports, always write entire package name --no-debug-info - disable debug info --add-debug-lines - add comments with debug line numbers if available --no-inline-anonymous - disable anonymous...
voidaddToList(List<?extendsNumber>numbers){numbers.add(10);// 错误,不能添加元素Number num=numbers.get(0);// 正确,可以安全地读取} 问题:只能读取,不能添加元素。 避免:使用通配符上限时,明确代码的读写需求。 通配符下限(Lower Bounds) 概念:使用? super T表示类型是T或其父类型。T被称为下限类型。
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getCode()) { } 'if' 圆括号 如果选中,那么在 if 声明中的括号内部总是会插入空格。 否则,不会插入空格。 已选中 for (int num : numbers) { if ( x ) { System.out.println("Hello from x!"); } else { System.out.println(y); } } 未选中 for (int num : numbers) { if (x) { ...