For a given number N check if it is prime or not. A prime number is a number which is only divisible by 1 and itself.
Example 1:
Input:
N = 5
Output:
1
Explanation:
5 has 2 factors 1 and 5 only.
Example 2:
Input:
N = 25
Output:
0
Explanation:
25 has 3 factors 1, 5, 25
Your Task:
You don't need to read input or print anything. Your task is to complete the function isPrime() which takes an integer N as input parameters and returns an integer, 1 if N is a prime number or 0 otherwise.
Expected Time Complexity: O(sqrt(N)) Expected Space Complexity: O(1)
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Avoid using static/global variables in your code as your code is tested
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Passing the Sample/Custom Test cases does not guarantee the correctness of code.
On submission, your code is tested against multiple test cases consisting of all
possible corner cases and stress constraints.
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Avoid using static/global variables in coding problems as your code is tested
against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the
correctness of code. On submission, your code is tested against multiple test cases
consisting of all possible corner cases and stress constraints.
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