Square root of a number

// { Driver Code Starts
#include<bits/stdc++.h>
using namespace std;



 // } Driver Code Ends
// Function to find square root
// x: element to find square root
class Solution{
  public:
    long long int floorSqrt(long long int x)
    {
        double l = 0, r = x;
        int count = 64;
        double mid;
        while (count--) {
            mid = (l + r) / 2.0;
            if (mid * mid == x) {
                return mid;
            }
            if ((mid * mid) < x) {
                l = mid;
            } else {
                r = mid;
            }
        }
        return mid;
    }
};

// { Driver Code Starts.

int main()
{
    int t;
    cin>>t;
    while(t--)
    {
        long long n;
        cin>>n;
        Solution obj;
        cout << obj.floorSqrt(n) << endl;
    }
    return 0;
}
  // } Driver Code Ends