#13Easy· asked at 12 companies
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What we know
Example 1
Input: a = "11", b = "1" Output: "100"
Example 2
Input: a = "1010", b = "1011" Output: "10101"
Constraints
- •
1 <= a.length, b.length <= 10^4 - •
Each string consists only of '0' or '1' characters.
- •
Each string does not contain leading zeros except for the zero itself.