Computers and Technology, 11.04.2020 02:54 babygirlmiller
We are given an array that contains N numbers. We want to determine if there are two numbers whose sum equals a given number K. For instance, if the input is 8, 4, 1, 6, and K is 10, then the answer is yes (4 and 6).
A number may be used twice. Do the following: a. Give an O(N2) algorithm to solve this problem.
b. Give an O(N logN) algorithm to solve this problem. (Hint: Sort the items first. After that is done, you can solve the problem in linear time.)
c. Code both solutions and compare the running times of your algorithms.
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