英文:
Linkedlist polynomial why my output only print first term
问题
我刚刚编写了一个程序，用于添加两个多项式链接列表。我的输出只打印出多项式的第一个项。
我无法弄清楚有什么错误。我想在这里得到一些帮助。有人可以告诉我代码有什么问题吗？
public void addNode(int cof, int exp) {PNode node = new PNode(cof, exp);if (first == null) {first = last = node;return;}last.next = node;last = node;}public PolynomialLinkedList add(PolynomialLinkedList s) {PolynomialLinkedList sum = new PolynomialLinkedList();// 实现这个方法PNode list1 = first;PNode list2 = s.first;while (list1 != null && list2 != null) {if (list1.exp == list2.exp) {sum.addNode(list1.coe + list2.coe, list1.exp);list1 = list1.next;list2 = list2.next;} else if (list1.exp > list2.exp) {sum.addNode(list1.coe, list1.exp);list1 = list1.next;} else if (list2.exp > list1.exp) {sum.addNode(list2.coe, list2.exp);list2 = list2.next;}}return sum;}
（注意：此处只提供翻译后的代码，不包含额外内容。）
英文:
I just wrote a program that add two polynomial linked-list. my output only prints first term of the polynomials.
I cannot figure out what bug is. I want to get some help here. could someone tell what's wrong with my code.
public void addNode(int cof, int exp) {PNode node = new PNode(cof, exp);if (first == null) {first = last = node;return;}last.next = node;last = node;}public PolynomialLinkedList add(PolynomialLinkedList s) {PolynomialLinkedList sum = new PolynomialLinkedList();//implement this methodPNode list1 = first;PNode list2 = s.first;while (list1 != null && list2 != null) {if (list1.exp == list2.exp) {sum.addNode(list1.coe + list2.coe, list1.exp);list1 = list1.next;list2 = list2.next;} else if (list1.exp > list2.exp) {sum.addNode(list1.coe, list1.exp);list1 = list1.next;} else if (list2.exp > list1.exp) {sum.addNode(list2.coe, list2.exp);list2 = list2.next;}}return sum;}
答案1
得分: 2
如果其中一个列表先结束，其他列表中的剩余项目将被忽略，不会被添加到总和中。
添加额外的循环
while(list1 != null) {sum.addNode(list1.coe, list1.exp);list1 = list1.next;}
和
while(list2 != null) {sum.addNode(list2.coe, list2.exp);list2 = list2.next;}
英文:
If one of the lists finishes first, the rest of the items in other list are ignored and are not getting added to the sum.
Add additional loops
while(list1 != null) {sum.addNode(list1.coe,list1.exp);list1=list1.next;}
and
while(list2 != null) {sum.addNode(list2.coe,list2.exp);list2=list2.next;}
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