# Compare the Triplets Solution in Kotlin -HackerRank

**Problem**

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.

**Constraints**

- 1 ≤ a[i] ≤ 100
- 1 ≤ b[i] ≤ 100

**Sample Input**

`17 28 30`

99 16 8

**Sample Output**

`2 1`

**ANSWER**

funcompareTriplets(a: Array<Int>, b: Array<Int>): Array<Int> {varalicePoints = 0varbobPoints = 0for(xin0 until a.size) {

valitAlice = a[x]

valitBob = b[x]if(itAlice > itBob) {

alicePoints++

}elseif(itAlice < itBob) {

bobPoints++

}

}returnarrayOf(alicePoints, bobPoints)}

**Explanation**

in this example:

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

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

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].

Comparing the ** 0** elements,

**so Bob receives a point.**

*17 < 99*Comparing the

**and**

*1***elements,**

*2***and**

*28 > 16***so Alice receives two points.**

*30 > 8*The return array is

**.**

*[2,1]*