A polymorphic type of branching trees can be declared as follows. Note that the children of a branch node are given as a list of trees, and that only the leaf nodes carry labels. datatype 'a vtree = Lf of 'a | Br of ('a vtree) list; (i) Write function flat t that converts a given tree t of this type to a list of the labels (without eliminating duplicates). Your function should run in linear time in the size of the tree. The blocks are connected with each through an underground tunnel. The distance between blocks is 130 meters. Each block has its own server room for housing servers and network devices. Each floor has its own telecommunication closet and the floor can be occupied up to a maximum of 120 staffs. Company X1YZ has 2190 different departments as follow: (i) What is the distinction among directing and sending? (ii) Routing calculations can be either interface state or distance-vector. Characterize these two terms and make sense of the compromises between them. (iii). Using the qualities of the organization portrayed above, plan a convention for disseminating this data across the organization. It would be ideal for you to determine the configuration of your messages and the size of any message fields This question connects with double requirement coming about because of part (iv) may be utilized to a sentence structure analyser taking a token stream as information (by means of calls to work lex()) and giving as result an theoretical language structure tree relating to. [8 marks each] 4 CST.2005.12.7 5 Computer Graphics and Image Processing (a) Explain why display devices appear to be able to reproduce (almost) all the colours of the spectrum using only red, green and blue light. [4 marks] (b) Describe an algorithm (other than thresholding) which will convert a greyscale image (8 bits per pixel) to a bi-level black and white image (1 bit per pixel), with the same number of pixels, while retaining as much detail as possible. In the two activities being executed? Explain the difference between 'qy' and "qxy" when used as constants in C. Describe the memory representation of both values. [4 marks] (b) The method for processing any given position's worth is to include the numbers to the position's both ways in the previous column. For example, to process the center number in the third column, you add 1 and 1; the sides of the triangle are consistently 1 since you just add the number to the upper left or the upper not too far off (being no second number on the opposite side)