Update README

README.md

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 |1|[Two Sum](https://leetcode.com/problems/two-sum/)| [C++](./CPP%2C%20C%2B%2B%20Solutions/1.%20Two%20Sum_1.cpp) | _O(n^2)_ | _O(n)_ | Easy | Array, Hash Table |
 |1|[Two Sum](https://leetcode.com/problems/two-sum/)| [C++](./CPP%2C%20C%2B%2B%20Solutions/1.%20Two%20Sum_1.cpp) | _O(n^2)_ | _O(n)_ | Easy | Array, Hash Table |
 
-|2|[Add Two Numbers](https://leetcode.com/problems/add-two-numbers/)| [C++](./algorithms/cpp/addTwoNumbers/addTwoNumbers.cpp)|Medium|
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 <!-- |1808|[Maximize Number of Nice Divisors](https://leetcode.com/problems/maximize-number-of-nice-divisors/)|[C++](./algorithms/cpp/maximizeNumberOfNiceDivisors/MaximizeNumberOfNiceDivisors.cpp)|Hard|Array Math|
 |1807|[Evaluate the Bracket Pairs of a String](https://leetcode.com/problems/evaluate-the-bracket-pairs-of-a-string/) | [C++](./algorithms/cpp/evaluateTheBracketPairsOfAString/EvaluateTheBracketPairsOfAString.cpp)|Medium|
 |1806|[Minimum Number of Operations to Reinitialize a Permutation](https://leetcode.com/problems/minimum-number-of-operations-to-reinitialize-a-permutation/) | [C++](./algorithms/cpp/minimumNumberOfOperationsToReinitializeAPermutation/MinimumNumberOfOperationsToReinitializeAPermutation.cpp)|Medium|