• Arabic numbers to romans
• Array deduplication
• Common array numbers
• Fibonacci numbers
• Generate Parentheses
• Giving change (greedy algo)
• Heap array permutation
• Long list begin
• Merge Sorted Arrays
• Merging two ordered lists
• Multiply Strings
• Reversing List
• Search substring as a set
• Selecting M from N
• Spiral matrix
• Two Summ