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# Data Structure and Algorithms 102: Deep Dive into Data Structure and Algorithms

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 0

``````5 6 7
3 6 10
``````

Sample Output 0

``````1 1
``````

Explanation 0

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 point.
• a[1] = b[1], so nobody receives a point.
• a[2] < b[2], so Bob receives 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 0#th elements 17<99, so Bob receives a point.
Comparing the 1#st and 2#nd elements, 28>16 and 30>18 so Alice receives two points. The return array is [2,1].

The solution in PHP:

``````function compareTriplets(\$a, \$b) {
\$aAward = 0;
\$bAward = 0;

for (\$i=0;\$i<3;\$i++){
if(\$a[\$i]>\$b[\$i]){
\$aAward +=1;
}elseif(\$a[\$i]<\$b[\$i]){
\$bAward +=1;
}
}

return array(\$aAward,\$bAward);
}
``````

In Python3:

``````def compareTriplets(a, b):
aAward = 0
bAward = 0

for i in range(0,3):
if(a[i]>b[i]):
aAward += 1
if (a[i]<b[i]):
bAward += 1

return [aAward,bAward]
``````

In Kotlin:

``````fun compareTriplets(a: Array<Int>, b: Array<Int>): Array<Int> {

var aAward =0
var bAward= 0

for (i in 0..2){
if(a[i]>b[i]){
aAward += 1
}
if(a[i]<b[i]){
bAward +=1
}
}
return arrayOf(aAward,bAward);
}

``````