Contents:

• Brackets (check the amount of open and close brackets in string)
• Cascade (Draws the array as ascending or descending diagonal cascade)
• Odd-Even Array (Print the array with even-odd-even-... rows of sequent numbers)
• Recursion (Recursive solutions)
• Spiral Form Array (Print array of digits or letters in snake form)
• Last Digit of Fibonacci number (Find last digit of N'th fibonacci number)