What is the wrong in this code

Question

def binarysearch(a,key):
start=0;end=n-1
while (start<=end):
mid=(start+end)//2
if (a[mid]==key):
return (key,"found at",i,"position")
elif (key>a[mid]):
start=mid+1
else:
end=mid-1
return("element not found")
a=[]
n=int(input("enter list size"))
for i in range(1,n+1):
a.append (input("enter",i,"element"))
print (a)
a.sort()
print ("after sorting",a)
key=input("enter search element")
binarysearch (a,key)

Answer 1

You need to do the following:
1. last line must be print(binarysearch(a,key))
2. end = n-1 must be end = len(a) -1
3. key, ‘found at’, i must be key, ‘found at’, mid + 1

Answer 2

Change

input("enter", i, "element") to

input("enter" + str(i) + "element")

Answer 3

OK bro tq..