Graph

• Find kingpin
• Bird sounds

Greedy

• Interval Scheduling
• Scheduling to minimize lateness
• Food Stops Scheduling
• Players Matching to minimalize the max height difference

Hash Table

• Two Sums

Running Time

• Find Closest Points Pair
• Disjoint Test
• Merge Two Sorted Lists

Tree

• Stress Test

Recursion

• Convert an Integer to a n-nary String
• Count Down Numbers
• Factorial
• Fibonacci
• Is Palindrome
• Reverse String
• Sum Numbers after a Position in the List
• Sum the Numbers in a Range
• Goodfellas
• Get Closest Points Pair
• Find Median

Dynamic Programming

• Fibonnaci by Memoization & Dynamic Programming

Sorting

• Bubble Sort

• Insertion Sort

• Heapsort

• Mergesort

• Sort Puppies

• Boredom Game

Counting

• Count Permutations with no Step

Encryption

• False Sense of Security