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Add Two Numbers (pyemma)
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Add Two Numbers (pyemma)
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public class AddTowNumbers {
public ListNode addTwoNumbers(ListNode l1, ListNode l2) {
if(l1 == null) return l2;
else if(l2 == null) return l1;
ListNode sent = new ListNode(0);
ListNode temp = sent, temp1 = l1, temp2 = l2;
int carry = 0, num;
while(temp1 != null && temp2 != null) {
num = temp1.val + temp2.val + carry;
carry = num / 10;
num = num % 10;
ListNode node = new ListNode(num);
temp.next = node;
temp = temp.next;
temp1 = temp1.next;
temp2 = temp2.next;
}
if(temp1 == null) {
while(temp2 != null) {
num = temp2.val + carry;
carry = num / 10;
num = num % 10;
ListNode node = new ListNode(num);
temp.next = node;
temp = temp.next;
temp2 = temp2.next;
}
}
else {
while(temp1 != null) {
num = temp1.val + carry;
carry = num / 10;
num = num % 10;
ListNode node = new ListNode(num);
temp.next = node;
temp = temp.next;
temp1 = temp1.next;
}
}
if(carry == 1) {
ListNode node = new ListNode(1);
temp.next = node;
}
return sent.next;
}
}