- Two Sum. twoSum()
- Maximum Average Subarray I. findMaxAverage()
- Running Sum of 1d Array. runningSum() Check If N and Its Double Exist. checkIfExist() Valid Mountain Array. validMountainArray()
- Merge Sorted Array. Merge()
- 3Sum. threeSum()
- Group the People Given the Group Size They Belong To. groupThePeople()
- Array Nesting. arrayNesting()
- Sort an Array. sortArray() Merge()