add 912

Author: fishercoder1534

Diff for: paginated_contents/algorithms/1st_thousand/README.md

@@ -48,7 +48,7 @@
 | 918 | [Maximum Sum Circular Subarray](https://leetcode.com/problems/maximum-sum-circular-subarray/)                                                                                                 | [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/firstthousand/_918.java)                                                                  |                                                                               | Medium                           | Array, DP, Monotonic Queue                                           
 | 917 | [Reverse Only Letters](https://leetcode.com/problems/reverse-only-letters/)                                                                                                                   | [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/firstthousand/_917.java)                                                                  |                                                                               | Easy                             |
 | 914 | [X of a Kind in a Deck of Cards](https://leetcode.com/problems/x-of-a-kind-in-a-deck-of-cards/)                                                                                               | [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/firstthousand/_914.java)                                                                  |                                                                               | Easy                             |
-| 912 | [Sort an Array](https://leetcode.com/problems/sort-an-array/)                                                                                                                                 | [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/firstthousand/_912.java)                                                                  |                                                                               | Easy                             |
+| 912 | [Sort an Array](https://leetcode.com/problems/sort-an-array/)                                                                                                                                 | [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/firstthousand/_912.java)                                                                  |                                                                               | Medium                           | Sort, MergeSort
 | 908 | [Smallest Range I](https://leetcode.com/problems/smallest-range-i/)                                                                                                                           | [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/firstthousand/_908.java)                                                                  |                                                                               | Easy                             |
 | 901 | [Online Stock Span](https://leetcode.com/problems/online-stock-span/)                                                                                                                         | [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/firstthousand/_901.java)                                                                  |                                                                               | Medium                           | Stack                                                                
 | 904 | [Fruit Into Baskets](https://leetcode.com/problems/fruit-into-baskets/)                                                                                                                       | [Solution](https://github.com/fishercoder1534/Leetcode/blob/master/src/main/java/com/fishercoder/solutions/firstthousand/_904.java)                                                                  | [:tv:](https://youtu.be/GVecnelW8mA)                                          | Medium                           | Two Pointers