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  1. Prepare
  2. Tutorials
  3. 10 Days of Javascript
  4. Day 4: Count Objects

Day 4: Count Objects

Objective

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

Task

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

Input Format

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

Constraints

Output Format

Return a count of the total number of objects such that . 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 objects in the array:

Because we have two objects that satisfy (i.e., and ), we return as our answer.