## Algorithm

Hacker rank Problem Name: 10 Days of JavaScript - Day 4: Count Objects

Objective

In this challenge, we learn about iterating over objects. Check the attached tutorial for more details.

Complete the function in the editor. It has one parameter: an array, a of objects. Each object in the array has two integer properties denoted by x and y.The function must return a count of all such objects in array a that satisfy o * x == o * y

Input Format

The first line contains an integer denoting n. Each of the n subsequent lines contains two space-separated integers describing the values of x and y.

Constraints

• 5 <= n <= 10
• 1<= x.y <= 100

Output Format

Return a count of the total number of objects o such that o * x == o * y. Locked stub code in the editor prints the returned value to STDOUT.

Sample Input 0

5
1 1
2 3
3 3
3 4
4 5


Sample Output 0

2


Explanation 0

There are n = 5 objects in the objects array:

• objects0 = {x: 1, y: 1}
• objects1 = {x: 2, y: 3}
• objects2 = {x: 3, y: 3}
• objects3 = {x: 3, y: 4}
• objects4 = {x: 4, y: 5}

Because we have two objects o that satisfy o * x == 0* y (i.e., objects0 and objects2), we return 2 as our answer.

## Code Examples

### #1 Code Example with Javascript Programming

Code - Javascript Programming


'use strict';

process.stdin.resume();
process.stdin.setEncoding('utf-8');

let inputString = '';
let currentLine = 0;

process.stdin.on('data', inputStdin => {
inputString += inputStdin;
});

process.stdin.on('end', _ => {
inputString = inputString.trim().split('\n').map(string => {
return string.trim();
});

main();
});

return inputString[currentLine++];
}

function getCount(objects) {
var count=0;
for (var index in objects)
{
if (objects[index].x==objects[index].y)
{
count++;
}
}
return count;
}


Copy The Code &

Input

cmd
5 1 1 2 3 3 3 3 4 4 5

Output

cmd
2