/**
* Definition for singly-linked list.
* struct ListNode {
* int val;
* ListNode *next;
* ListNode(int x) : val(x), next(NULL) {}
* };
*/
class Solution {
public:
ListNode *addTwoNumbers(ListNode *l1, ListNode *l2) {
ListNode* p1=l1;
ListNode* p2=l2;
ListNode* p=NULL;
ListNode* result;
int up=0;
while(p1!=NULL && p2!=NULL){
int value=p1->val+p2->val+up;
int value1=value%10;
up=value/10;
ListNode* node=new ListNode(value1);
if(p==NULL){
p=node;
result=p;
}else{
p->next=node;
p=p->next;
}
p1=p1->next;
p2=p2->next;
}
while(p1!=NULL){
int value=p1->val+up;
int value1=value%10;
up=value/10;
ListNode* node=new ListNode(value1);
if(p==NULL){
p=node;
result=p;
}else{
p->next=node;
p=p->next;
}
p1=p1->next;
}
while(p2!=NULL){
int value=p2->val+up;
int value1=value%10;
up=value/10;
ListNode* node=new ListNode(value1);
if(p==NULL){
p=node;
result=p;
}else{
p->next=node;
p=p->next;
}
p2=p2->next;
}
if(up!=0){
ListNode* node=new ListNode(up);
p->next=node;
}
return result;
}
};
* Definition for singly-linked list.
* struct ListNode {
* int val;
* ListNode *next;
* ListNode(int x) : val(x), next(NULL) {}
* };
*/
class Solution {
public:
ListNode *addTwoNumbers(ListNode *l1, ListNode *l2) {
ListNode* p1=l1;
ListNode* p2=l2;
ListNode* p=NULL;
ListNode* result;
int up=0;
while(p1!=NULL && p2!=NULL){
int value=p1->val+p2->val+up;
int value1=value%10;
up=value/10;
ListNode* node=new ListNode(value1);
if(p==NULL){
p=node;
result=p;
}else{
p->next=node;
p=p->next;
}
p1=p1->next;
p2=p2->next;
}
while(p1!=NULL){
int value=p1->val+up;
int value1=value%10;
up=value/10;
ListNode* node=new ListNode(value1);
if(p==NULL){
p=node;
result=p;
}else{
p->next=node;
p=p->next;
}
p1=p1->next;
}
while(p2!=NULL){
int value=p2->val+up;
int value1=value%10;
up=value/10;
ListNode* node=new ListNode(value1);
if(p==NULL){
p=node;
result=p;
}else{
p->next=node;
p=p->next;
}
p2=p2->next;
}
if(up!=0){
ListNode* node=new ListNode(up);
p->next=node;
}
return result;
}
};