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Q.

What is the following function determining?

	int fn(int a, int b)
	{
		if (b==0) return 0;
		if (b==1) return a;
		return a+fn(a, b-1);
	}
	
A a+b where a and b are integers
B a+b where a and b are non-negative integers
C a*b where a and b are integers
D a*b where a and b are non-negative integers
Answer & Explanation
Option: [B]

The above function is a recursive function. The function will return a+b where a and b are non-negative integers

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