Problem 1: Remove the repeating character and print it once from a sequence of consecutively repeated characters input : aaabbccdeefaaabccc output : abcdefabc Problem 2: Evaluate the expression and sort and print the output. Getting the input is the tricky part Input: Number of input : 4 2*3 2^2^2 35 3*1 Output: 3*1 2*3 2^2^2 35 Problem 3: Given a 6 blocks, of different height h1, …, h6 . Make 2 towers using 3 Blocks for each tower in desired height h1, h2. Print the blocks to be used in ascending order Input: 1 2 5 4 3 6 height of tower: 6 15 Output : 1 2 3 & 4 5 6 Problem 4: Given a 5X5 chess board as input. 9 knights are placed in the board. Print whether the configuration valid or Invalid. Problem 5: Given a number, print all the code that can be formed with z={a=1, .., z=26}. 1123 {1, 1, 2, 3} = aabc {11, 2, 3} = kbc {1, 1, 23} = aaw {11, 23} = kw Round 3: Implement a gift card system with a existing bank. The bank has many customers . Each customer can create many gift card. Balance should detected from bank balance when a gift card is created.A gift card has a id, pin.You can Top-up any gift card, close gift card and buy item using gift card(they are called transactions), etc. Write clean code and use object oriented language.
