unknown Interview Question for Software Developers


Country: India
Interview Type: Written Test




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0
of 0 vote

Shortest code, but FAR from most efficient.

public int fib(int n){
   return n < 2 ?
            1 :
            fib(n - 1) + fib(n - 2);
}

- zortlord August 19, 2015 | Flag Reply
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0
of 0 votes

This is the most efficient code that I can make ( O(n) ):

public int fib(int n){
    int nMinus1 = 1;
    int nMinus2 = 1;
    for(int i = 1; i < n; i++){
        int temp = nMinus1 + nMinus2;
        nMinus2 = nMinus1;
        nMinus1 = temp;
    }
    return nMinus1;
}

- zortlord August 19, 2015 | Flag
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0
of 0 votes

This program is to generate fibonacci series, but the op is asking for the fibonacci prime.

- Srinivas August 20, 2015 | Flag
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0
of 0 votes

The requirement is the nth prime not the nth number

- nasr August 20, 2015 | Flag
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0
of 0 votes

It is required to find the nth prime not the nth number

- nasr August 20, 2015 | Flag
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0
of 0 vote

I guess the question is to find Fibonacci prime not nth Fibonacci

- Anonymous August 21, 2015 | Flag Reply
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0
of 0 vote

I believe the question is to find Fibonacci prime not just Fibonacci

- C August 21, 2015 | Flag Reply
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0
of 0 vote

def nth_fib(number):
	total = 0
	prev1 = 0
	prev2 = 0
	for i in xrange(1, number):
		prev2 = prev1
		if i < 2:
			prev1 = 1
		total += prev1 + prev2
	return total

- Kalyan Vishnubhatla August 21, 2015 | Flag Reply
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0
of 0 vote

Shortest code:

def f(n): return 1 if n<=2 else f(n-2)+f(n-1)

- JonathanBarOr November 04, 2015 | Flag Reply


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