The Daily Coding Challenge

Thai Bui bio photo By Thai Bui Comment

Rules

The rules are simple: you should try to code something everyday and publish it on your blog. The challenge should be very simple so that you can finish it daily. Today will be my first day.

1st Challenge

Write a program in Scala to sort a list of integers in decending orders.

The code

I used this nifty online code editor for writing the challenge. You can use it to run and test the code below. It also provides a playback of my coding progress as well.

https://codepad.remoteinterview.io/GLHUVWPMMA

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

object FirstChallenge {
    def main(args: Array[String]) = {
        val a = Array(1, 2, 3, 4)
        for(i <- 0 until a.length - 1){
            var max = a(i)
            var maxPos = i
            for(j <- i+1 until a.length) {
                if(a(j) > max) {
                    max = a(j)
                    maxPos = j
                }
            }
            
            max = a(i)
            a(i) = a(maxPos);
            a(maxPos) = max;
        }
        
        for(i <- 0 until a.length) {
            println(a(i))
        }
    }
}

The code is not efficient but it is good enough for completing this challenge.

comments powered by Disqus