Problem Statement $($IN C CODE$)$

Points in a plane are identified by $(x,y)$ coordinates. The distance between two

points $(x_a,y_a)$ and $(x_b,y_b)$ is calculated using the equation:

$\sqrt[\phantom{2}]{(x_b-x_a{)}^2+(y_b-y_a{)}^2}$

Write a program that reads in three points, $(x_a,y_a),(x_b,y_b),$ and $(x_c,y_c)$ and

computes the distance between them all and then outputs the closest two points.

For example, if we invoke your program from the command line using

$./$a$.$out $001\mathrm{.}514\mathrm{.}34\mathrm{.}8$

it would correspond to points $(0,0),(1\mathrm{.}5,1),(4\mathrm{.}3,4\mathrm{.}8)$ and your output should

look something like the following.

Distance ab: $1\mathrm{.}802776$

Distance ac: $6\mathrm{.}444377$

Distance bc: $4\mathrm{.}720169$

Closest two points: ab