For a given list of values in descending order, write a method in Pyth

1.	For a given list of values in descending order, write a method in Python to search for a value with the help of Binary search method. The method should return position of the value and should return -1 if the value not present in the list.
Answer» def binarysrch (nums, x): high=len (nums) low=0 while low < high: mid=(low+high)/2 midval=nums [mid] if midval > x: low = mid + 1 elif midval < x: high = mid else: return mid return -1

For a given list of values in descending order, write a method in Python to search for a value with the help of Binary search method. The method should return position of the value and should return -1 if the value not present in the list.

Answer»

def binarysrch (nums, x):

high=len (nums)

low=0

while low < high:

mid=(low+high)/2

midval=nums [mid]

if midval > x:

low = mid + 1

elif midval < x:

high = mid

else:

return mid

return -1