Fixed bug in Dominator
Cleaner dominator check
Changed the approach quite a bit.
Refactored to remove redundant code
Added check that k cannot be smaller than 2
Super 2 summer
Some work on the most efficient twosummer ever
Giving up on EfficientTwoSummer. SweepingTwoSummer is good enough.
Serialize and deserialize a binary tree
Linked list reversal
Stack that supports push, pop and min in O(1) time.
Intervals
Interval manipulation