## Hackerrank - Sherlock and Squares Solution

Watson likes to challenge Sherlock's math ability. He will provide a starting and ending value describing a range of integers. Sherlock must determine the number of *square integers* within that range, inclusive of the endpoints.

**Note**: A square integer is an integer which is the square of an integer, e.g. .

For example, the range is and , inclusive. There are three square integers in the range: and .

**Function Description**

Complete the *squares* function in the editor below. It should return an integer representing the number of square integers in the inclusive range from to .

squares has the following parameter(s):

*a*: an integer, the lower range boundary*b*: an integer, the uppere range boundary

**Input Format**

The first line contains , the number of test cases.

Each of the next lines contains two space-separated integers denoting and , the starting and ending integers in the ranges.

**Constraints**

**Output Format**

For each test case, print the number of square integers in the range on a new line.

**Sample Input**

```
2
3 9
17 24
```

**Sample Output**

```
2
0
```

**Explanation**

*Test Case #00:* In range , and are the two square integers.*Test Case #01:* In range , there are no square integers.

### Solution in Python

```
from math import sqrt
def squares(a, b):
c = int(sqrt(b))-int(sqrt(a))
return c+1 if int(sqrt(a))**2==a else c
for _ in range(int(input())):
a,b = map(int,input().split())
print(squares(a, b))
```