Update README.md

Author: kamyu104

README.md

@@ -481,7 +481,7 @@
 873 | [Length of Longest Fibonacci Subsequence](https://leetcode.com/problems/length-of-longest-fibonacci-subsequence/) | [C++](./C++/length-of-longest-fibonacci-subsequence.cpp) [Python](./Python/length-of-longest-fibonacci-subsequence.py) | _O(n^2)_ | _O(n)_ | Medium ||
 957 | [Prison Cells After N Days](https://leetcode.com/problems/prison-cells-after-n-days/) | [C++](./C++/prison-cells-after-n-days.cpp) [Python](./Python/prison-cells-after-n-days.py) | _O(1)_ | _O(1)_ | Medium ||
 966 | [Vowel Spellchecker](https://leetcode.com/problems/vowel-spellchecker/) | [C++](./C++/vowel-spellchecker.cpp) [Python](./Python/vowel-spellchecker.py) | _O(n)_ | _O(w)_ | Medium ||
-974| [Subarray Sums Divisible by K](https://leetcode.com/problems/subarray-sums-divisible-by-k/) |[C++](./C++/subarray-sums-divisible-by-k.cpp)  [Python](./Python/subarray-sums-divisible-by-k.py) | _O(n)_ | _O(k)_ | Medium         | variant of [Subarray Sum Equals K](https://leetcode.com/problems/subarray-sum-equals-k/ |
+974| [Subarray Sums Divisible by K](https://leetcode.com/problems/subarray-sums-divisible-by-k/) |[C++](./C++/subarray-sums-divisible-by-k.cpp)  [Python](./Python/subarray-sums-divisible-by-k.py) | _O(n)_ | _O(k)_ | Medium         | variant of [Subarray Sum Equals K](https://leetcode.com/problems/subarray-sum-equals-k/) |
 
 ## Math
 |  #  | Title           |  Solution       |  Time           | Space           | Difficulty    | Tag          | Note| 
@@ -597,7 +597,7 @@
 937| [Reorder Log Files](https://leetcode.com/problems/reorder-log-files/) | [C++](./C++/reorder-log-files.cpp) [Python](./Python/reorder-log-files.py) | _O(nlogn * l)_ | _O(l)_        | Easy         | | |
 969| [Pancake Sorting](https://leetcode.com/problems/pancake-sorting/) | [C++](./C++/pancake-sorting.cpp) [Python](./Python/pancake-sorting.py) | _O(n^2)_ | _O(l)_        | Medium         | | |
 973| [K Closest Points to Origin](https://leetcode.com/problems/k-closest-points-to-origin/) | [C++](./C++/k-closest-points-to-origin.cpp) [Python](./Python/k-closest-points-to-origin.py) | _O(n)_ on average | _O(1)_        | Easy         | | Quick Select, Heap|
-976| [Largest Perimeter Triangle](https://leetcode.com/problems/largest-perimeter-triangle/) | [C++](./C++/largest-perimeter-triangle.cpp) [Python](./Python/largest-perimeter-triangle.py) | _O(nlogn) | _O(1)_        | Easy         | | |
+976| [Largest Perimeter Triangle](https://leetcode.com/problems/largest-perimeter-triangle/) | [C++](./C++/largest-perimeter-triangle.cpp) [Python](./Python/largest-perimeter-triangle.py) | _O(nlogn)_ | _O(1)_        | Easy         | | |
 
 ## Two Pointers
 |  #  | Title           |  Solution       |  Time           | Space           | Difficulty    | Tag          | Note|