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in Computer by (72.4k points)

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.

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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

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