Compare_the_Triplets.scala

/*
Compare the Triplets
--------------------------------
Link: https://www.hackerrank.com/contests/wissen-coding-challenge-2021/challenges/compare-the-triplets
--------------------------------

Alice and Bob each created one problem for HackerRank. A reviewer rates the two challenges, awarding points on a scale from 1 to 100 for three categories: problem clarity, originality, and difficulty.

The rating for Alice's challenge is the triplet a = (a[0], a[1], a[2]), and the rating for Bob's challenge is the triplet b = (b[0], b[1], b[2]).

The task is to find their comparison points by comparing a[0] with b[0], a[1] with b[1], and a[2] with b[2].

If a[i] > b[i], then Alice is awarded 1 point.
If a[i] < b[i], then Bob is awarded 1 point.
If a[i] = b[i], then neither person receives a point.
Comparison points is the total points a person earned.

Given a and b, determine their respective comparison points.

Example

a = [1, 2, 3]
b = [3, 2, 1]

For elements *0*, Bob is awarded a point because a[0] .
For the equal elements a[1] and b[1], no points are earned.
Finally, for elements 2, a[2] > b[2] so Alice receives a point.
The return array is [1, 1] with Alice's score first and Bob's second.

Function Description

Complete the function compareTriplets in the editor below.

compareTriplets has the following parameter(s):

int a[3]: Alice's challenge rating
int b[3]: Bob's challenge rating

Return

int[2]: Alice's score is in the first position, and Bob's score is in the second.

Input Format

The first line contains 3 space-separated integers, a[0], a[1], and a[2], the respective values in triplet a.
The second line contains 3 space-separated integers, b[0], b[1], and b[2], the respective values in triplet b.

Sample Input 0

5 6 7
3 6 10

Sample Output 0

1 1

Explanation 0

a = (a[0],a[1],a[2]) = (5,6,7)
b = (b[0],b[1],b[2]) = (3,6,10)

In this example:

Now, let's compare each individual score:

a[0]>b[0], so Alice receives 1 point.
a[1]=b[1], so nobody receives a point.
a[2]<b[2], so Bob receives 1 point.

Alice's comparison score is 1, and Bob's comparison score is 1. Thus, we return the array [1,1].

Sample Input 1

17 28 30
99 16 8

Sample Output 1

2 1

Explanation 1

Comparing the 0th elements, 17<99 so Bob receives a point.
Comparing the 1st and 2nd elements, 28>16 and 30>8 so Alice receives two points.
The return array is [2,1].

*/
(Scala Solution)

object Solution {

    // Complete the compareTriplets function below.
    def compareTriplets(a: Array[Int], b: Array[Int]): Array[Int] = {
        var alice = 0;
		var bob = 0;
		
		if (a(0) > b(0)) alice += 1 else if (b(0) > a(0)) bob += 1 else alice = alice
        if (a(1) > b(1)) alice += 1 else if (b(1) > a(1)) bob += 1 else alice = alice
        if (a(2) > b(2)) alice += 1 else if (b(2) > a(2)) bob += 1 else alice = alice
		
		return(Array(alice.toInt,bob.toInt))
    }

    def main(args: Array[String]) {
        val printWriter = new PrintWriter(sys.env("OUTPUT_PATH"))

        val a = StdIn.readLine.replaceAll("\\s+$", "").split(" ").map(_.trim.toInt)

        val b = StdIn.readLine.replaceAll("\\s+$", "").split(" ").map(_.trim.toInt)
        val result = compareTriplets(a, b)

        printWriter.println(result.mkString(" "))

        printWriter.close()
    }
}