Update README.md

Author: kamyu104

README.md

@@ -78,7 +78,7 @@ I'll keep updating for full summary and better solutions. Stay tuned for updates
 158 | [Read N Characters Given Read4 II - Call multiple times](https://leetcode.com/problems/read-n-characters-given-read4-ii-call-multiple-times/) | [C++](./C++/read-n-characters-given-read4-ii-call-multiple-times.cpp)  [Python](./Python/read-n-characters-given-read4-ii-call-multiple-times.py) | _O(n)_ | _O(1)_ | Hard |📖|
 163 | [Missing Ranges](https://leetcode.com/problems/missing-ranges/)| [C++](./C++/missing-ranges.cpp) [Python](./Python/missing-ranges.py) | _O(n)_      | _O(1)_          | Medium         | 📖 |
 169 | [Majority Element](https://leetcode.com/problems/majority-element/) | [C++](./C++/majority-element.cpp) [Python](./Python/majority-element.py) | _O(n)_ | _O(1)_          | Easy           |
-189 | [Rotate Array](https://leetcode.com/problems/rotate-array/)   | [Python](./Python/rotate-array.py) | _O(n)_        | _O(1)_         | Easy           ||
+189 | [Rotate Array](https://leetcode.com/problems/rotate-array/)   | [C++](./C++/rotate-array.cpp) [Python](./Python/rotate-array.py) | _O(n)_        | _O(1)_         | Easy           ||
 209 | [Minimum Size Subarray Sum](https://leetcode.com/problems/minimum-size-subarray-sum/) | [Python] (./Python/minimum-size-subarray-sum.py) | _O(n)_ | _O(1)_ |  Medium | | Binary Search
 215 | [Kth Largest Element in an Array](https://leetcode.com/problems/kth-largest-element-in-an-array/) | [C++] (./C++/kth-largest-element-in-an-array.cpp) [Python] (./Python/kth-largest-element-in-an-array.py)| _O(n)_ ~ _O(n^2)_ | _O(1)_ |  Medium | EPI|
 228 | [Summary Ranges](https://leetcode.com/problems/summary-ranges/) | [C++] (./C++/summary-ranges.cpp) [Python] (./Python/summary-ranges.py)| _O(n)_ | _O(1)_ | Easy | |