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How will you implement pow(a,b) without using multiplication ......
Software QA/Tests Interview Questions from Microsoft
(Continued from previous question...)
How will you implement pow(a,b) without using multiplication ......
Question:
How will you implement pow(a,b) without using multiplication or division operators. You can use only add/substract operators.
maybe an answer:
#include
using namespace std;
int pow(int a, int b)
{int ans, i, j, temp;
ans = a;
temp = a;
if(b==0)
return(1);
for(i=0; i<b-1; i++)
{
for(j=0; j<a-1; j++)
ans=temp+ans;
temp=ans;
}
return(ans);
}
int main()
{int a, b;
cin>> a >> b;
cout << pow(a,b);
}
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