Regarding programming in C

Implement a program in C$,$ called distances, that uses OpenMP for parallelization and that:

$1$: Reads coordinates of cells from a text file "cells" in the current working directory.

$2$: Computes the distances between cells counting how often each distance occurs, approximating, i$.$e$.$ rounding, truncating, or similar, to $2$ decimal places.

$3$:Outputs to stdout a sorted list of distances with associated frequencies $($including $0$ frequencies at your will$).$

Your program should accept command line arguments

$./$distances $-$t$5$

The argument to $-$t give the number of OpenMP threads that you may use. You may only use OpenMP parallelism.

Input

Coordinates are given in a file, in which each row corresponds to one cell. The three coordinates are separated by exactly one blank space. Each coordinate is given exactly as follows: A sign $\text{'}+\text{'}$ or $\text{'}-\text{'},$ two digits, a decimal point $\text{'}.\text{'},$ and three digits. For instance, the following is a valid input of $10$ cells.

$+01\mathrm{.}330-09\mathrm{.}035+03\mathrm{.}489-03\mathrm{.}718+02\mathrm{.}517-05\mathrm{.}995+09\mathrm{.}568-03\mathrm{.}464+02\mathrm{.}645-09\mathrm{.}620+09\mathrm{.}279+08\mathrm{.}828+07\mathrm{.}630-02\mathrm{.}290+00\mathrm{.}679+04\mathrm{.}113-03\mathrm{.}399+05\mathrm{.}299-00\mathrm{.}994+07\mathrm{.}313-06\mathrm{.}523+03\mathrm{.}376-03\mathrm{.}614-06\mathrm{.}657+01\mathrm{.}304+09\mathrm{.}381-01\mathrm{.}559-04\mathrm{.}238-07\mathrm{.}514+08\mathrm{.}942$

Output

A valid output to the above input is

$03\mathrm{.}00105\mathrm{.}54105\mathrm{.}85105\mathrm{.}91106\mathrm{.}07106\mathrm{.}54107\mathrm{.}94108\mathrm{.}58109\mathrm{.}40109\mathrm{.}59109\mathrm{.}65109\mathrm{.}98110\mathrm{.}00111\mathrm{.}18111\mathrm{.}68111\mathrm{.}77111\mathrm{.}98113\mathrm{.}46114\mathrm{.}02114\mathrm{.}11114\mathrm{.}77114\mathrm{.}78114\mathrm{.}96115\mathrm{.}07115\mathrm{.}38115\mathrm{.}71115\mathrm{.}78115\mathrm{.}84116\mathrm{.}75116\mathrm{.}94117\mathrm{.}33117\mathrm{.}63117\mathrm{.}66117\mathrm{.}72117\mathrm{.}79118\mathrm{.}00119\mathrm{.}02119\mathrm{.}10119\mathrm{.}31120\mathrm{.}65121\mathrm{.}67122\mathrm{.}00122\mathrm{.}31123\mathrm{.}85123\mathrm{.}981$