cool_sites_coding.r

## Cool sites for coding

## Hackerrank
    https://www.hackerrank.com/

## URI Online Judge - Problems & Contests
    https://www.urionlinejudge.com.br/

    ## Changed to beecrowd
        https://www.beecrowd.com.br/

## Interview Bit
    https://www.interviewbit.com/

## Code Fights
    https://codefights.com/

## Online compiler
    https://www.programiz.com/c-programming/online-compiler/
    https://replit.com/
    https://www.onlinegdb.com/
    https://www.programiz.com/html/online-compiler/
    https://www.programiz.com/python-programming/online-compiler/

## Visualization of data structures and algorithms
    https://csvistool.com/
    https://www.cs.usfca.edu/~galles/visualization/Algorithms.html
    https://visualgo.net/
    https://algorithm-visualizer.org/

## Fun Sites
    https://www.nayuki.io/
    https://nihey.org/
    https://try.github.io/