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2.cpp
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55 lines (53 loc) · 964 Bytes
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#include<iostream>
#include<vector>
#include<map>
#include "ListNode.hpp"
using namespace std;
ListNode *addTwoNumbers(ListNode *l1, ListNode *l2) {
if(l1 == NULL && l2 == NULL)
return NULL;
ListNode *p = l1, *q = l2;
int val = 0;
if(p) {
val += p->val;
p = p->next;
}
if(q) {
val += q->val;
q = q->next;
}
bool flag = val / 10;
val %= 10;
ListNode *h = new ListNode(val);
ListNode *l = h;
while(p || q) {
val = flag ? 1 : 0;
if(p) {
val += p->val;
p = p->next;
}
if(q) {
val += q->val;
q = q->next;
}
flag = val / 10;
val %= 10;
l->next = new ListNode(val);
l = l->next;
}
if(flag)
l->next = new ListNode(1);
return h;
}
int main(){
int a[] = {1,4,13,34};
int *p = a;
cout<<*p<<endl;
int v = ++*p;
cout<<v<<endl;
v = ++*p;
cout<<v<<endl;
v = ++*p;
cout<<v<<endl;
return 1;
}