Computers and Technology, 15.02.2021 20:50 leoniandreww
Define (i. e. write) the function (echo lst). This function doubles each top-level element of list lst. E. g., (echo '(a b c)) returns (a a b b c c). (echo '(a (b c))) returns (a a (b c) (b c)) 2. Define the function (echo-lots lst n). (echo-lots '(a (b c)) 3) returns (a a a (b c) (b c) (b c)), that is, it is like echo but it repeats each element of lst n times. 3. Define the function (echo-all lst) which is a deep version of echo. (echo-all '(a (b c)) should return (a a (b b c c)(b b c c)). 4. Define the function nth. (nth i lst) returns the ith element of lst. E. g., (nth 0 '(a b c)) returns a, and (nth 1 '(a (b c) d) returns (b c). You may assume
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22. sata3 allows for data transfer rates of 600 mb/s. explain why you would likely not be able to copy data from one hard drive to another at anywhere close to this speed. also, what could be upgraded on the computer to achieve transfer speeds closer to 600 mb/s
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Write a program that begins by reading in a series of positive integers on a single line of input and then computes and prints the product of those integers. integers are accepted and multiplied until the user enters an integer less than 1. this final number is not part of the product. then, the program prints the product. if the first entered number is negative or 0, the program must print “bad input.” and terminate immediately
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Define (i. e. write) the function (echo lst). This function doubles each top-level element of list l...
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