Given a number N. Find if it can be expressed as sum of two prime numbers.
Example 1:
Input: N = 34
Output: "Yes"
Explanation: 34 can be expressed as
sum of two prime numbers.
Example 2:
Input: N = 23
Output: "No"
Explanation: 23 cannnot be expressed as
sum of two prime numbers.
Your Task:
You dont need to read input or print anything. Complete the function isSumOfTwo() which takes N as input parameter and returns "Yes" if can be expressed as sum of two prime numbers. else return "No".
Expected Time Complexity: O(n*sqrt(n)) Expected Auxiliary Space: O(1)
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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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