#1771Medium#1 in Zoho's list· asked at 15 companies
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What we know
Example 1
Input: s = "tree" Output: "eert"
"eetr" is also valid.
Example 2
Input: s = "cccaaa" Output: "aaaccc"
Example 3
Input: s = "Aabb" Output: "bbAa"
Constraints
- •
1 <= s.length <= 5 * 10^5 - •
sconsists of uppercase and lowercase English letters and digits.