Determining the obvious brute-force algorithm

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1. Write a program that reads N points in a plane and outputs any group of four or more colinear points (i.e., points on the same line). The obvious brute-force algorithm requires O(N4) time. However, there is a better algorithm that makes use of sorting and runs in O(N2 log N) time.

2. Show that the two smallest elements among N can be found in N + flog N1- 2 comparisons.

Reference no: EM13968246

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