Check perfect square
Basic Accuracy: 38.18% Submissions: 55 Points: 1

Given a positive integer N, check if it is a perfect square or not.
Note: Try to solve the question using only addition and subtraction operation.

 

Example 1:

Input:
N = 35
Output:
0
Explanation:
35 is not a perfect 
square.

 

Example 2:

Input:
N = 49
Output:
1
Explanation:
49 is a perfect
square.

 

 

Your Task:

You don't need to read input or print anything. Your task is to complete the function checkPerfectSquare() which takes an integer N and returns 1 if it is a perfect square, else 0.

 

Expected Time Complexity: O(N)
Expected Auxiliary Space: O(1)

 

Constraints:
1<= N <=105

 

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