Python: Implement pow(x, n)
Write a Python class to implement pow(x, n).
Sample Solution:
Python Code:
class py_solution:
def pow(self, x, n):
if x==0 or x==1 or n==1:
return x
if x==-1:
if n%2 ==0:
return 1
else:
return -1
if n==0:
return 1
if n<0:
return 1/self.pow(x,-n)
val = self.pow(x,n//2)
if n%2 ==0:
return val*val
return val*val*x
print(py_solution().pow(2, -3));
print(py_solution().pow(3, 5));
print(py_solution().pow(100, 0));
Sample Output:
0.125 243 1
Pictorial Presentation:
Flowchart:
Python Code Editor:
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