Given two integer a and b, find whether their product (a x b) exceed the signed 64 bit integer or not. If it exceed print Yes else print No.
Input : a = 100, b = 200 Output : No Input : a = 10000000000, b = -10000000000 Output : Yes
- If either of the number is 0, then it will never exceed the range.
- Else if the product of the two divided by one equals the other, then also it will be in range.
- In any other case overflow will occur.
Time complexity : O(1)
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