Change the name of count to something else. It appears
there might be a function defined in the same name.
--- debasish deka <[EMAIL PROTECTED]> wrote:
> Your answer lies in your querry only.
> The number of multiplication would be (n-1) where
> 'n' is the power to which a is raised.
> Regards,
> Debasish
>
> Tomoyo Daidouji <[EMAIL PROTECTED]> wrote:
> Hi all,
>
> I need to write a recursive function to calculate
> a^n. When the
> function call ends, it needs to return the number
> of multiplications
> it did. I've written the code, which calculates
> a^n, but I can't get
> the count to work properly. Could you tell me where
> I'm going wrong.
> I'm getting the following error:
>
> power_alg.cpp:33: error: reference to âcountâ is
> ambiguous
> power_alg.cpp:5: error: candidates are: int count
>
> Below is the complete code I'm using.
>
> #include <iostream>
> using namespace std;
>
> int count = 0;
> float Power(float a, int n)
> {
> float result;
>
> if (n == 0)
> {
> result = 1;
> count = 0;
> }
> else if (n == 1)
> {
> result = a;
> count = 0;
> }
> else if (n % 2 == 0)
> {
> result = Power(a*a, n/2);
> count++; //count as one multiplication
> }
> else if (n % 2 == 1)
> {
> result = Power(a*a, (n-1)/2) * a;
> count += 2; //count as two multiplications
> }
>
> return result;
>
> } //end Power function
>
> int main()
> {
> float a;
> int n;
>
> cout << "Please enter a number: ";
> cin >> a;
>
> cout <<"Please enter the power you're raising the
> number to: ";
> cin >> n;
>
> float answer = Power(a, n);
>
> cout << "The result is: " << answer << endl;
> cout << "The number of multiplications it takes
> is: " << count <<
> endl;
>
> } //end main function
>
> I would appreciate it very much if someone could
> help me out here.
>
> Thanks,
> Chai.
>
>
>
>
>
>
> Karmennevaya Dhikaraste, Maaphaaleshu Kadaachanah
>
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