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GATE | GATE-CS-2005 | Question 82
Consider the following C-function:
C
Suppose we modify the above function foo() and store the values of foo (i), 0 < = i < n, as and when they are computed. With this modification, the time complexity for function foo() is significantly reduced. The space complexity of the modified function would be:
double foo (int n)
{
int i;
double sum;
if (n = = 0) return 1.0;
else
{
sum = 0.0;
for (i = 0; i < n; i++)
sum += foo (i);
return sum;
}
}
(A)
O(1)
(B)
O(n)
(C)
O(n!)
(D)
O(nn)
Answer
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