40 lines
852 B
Markdown
40 lines
852 B
Markdown
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# 2. Add Two Numbers (Medium)
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You are given two non-empty linked lists representing two non-negative integers.
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The digits are stored in reverse order, and each of their nodes contains a
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single digit. Add the two numbers and return the sum as a linked list.
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You may assume the two numbers do not contain any leading zero, except the
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number 0 itself.
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## Example 1:
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```
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Input: l1 = [2,4,3], l2 = [5,6,4]
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Output: [7,0,8]
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Explanation: 342 + 465 = 807.
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```
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## Example 2:
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```
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Input: l1 = [0], l2 = [0]
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Output: [0]
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```
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## Example 3:
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```
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Input: l1 = [9,9,9,9,9,9,9], l2 = [9,9,9,9]
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Output: [8,9,9,9,0,0,0,1]
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```
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## Constraints:
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- The number of nodes in each linked list is in the range [1, 100].
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- 0 <= Node.val <= 9
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- It is guaranteed that the list represents a number that does not have leading
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zeros.
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