count_Squares.js

function count_Squares(arr) {
    
    /*
    don't need the memo...
    the floor of the square root of the number is the number of squares up to that point
    */
    
    for (let i = 0; i < arr.length; i++) {
        let curr = arr[i].split(' ').map(str => parseInt(str, 10));
        let a = curr[0];
        let b = curr[1];
        
        let x = Math.floor(Math.sqrt(a));
        let y = Math.floor(Math.sqrt(b));
        console.log(y - x);
        
    }

}

count_Squares(["3 9", "17 24"]);