Page 512 - Computer Science V2.0 Class 11

found, index = search(myList, key)
if found:

print("Element",key," is present in the list at index ", index)
else:
print("Element",key," is not present in the list")
searchAgain = input("Continue another search? say Y/y for yes, N/n for no:")
if searchAgain != "Y" and searchAgain != "y":

break
Program 16: Write a function search that takes a tuple myTuple and a value key to be searched in myTuple as
arguments. When the key is present in myTuple, the function search returns True and the index where the
search key is found. If search reaches the end of the tuple without finding the key, search returns False with
None as the index. Invoke search to search for a key in a tuple provided by the user.

Ans. def search(myTuple, key):
"""
Objective: To search the key in myTuple
Input Parameters:
myTuple: tuple

key : element to be searched
Return Value:
True: if key is found in the tuple, False otherwise
index:
if search succeeds, index of search key found

None, if search fails
"""
found = False
for index in range(len(myTuple)):
if myTuple[index] == key:

found = True
return found, index
return found, None

myTuple = []

numElements = int(input("Enter size of the tuple: "))
print("Enter each element and press enter: ")
for i in range(0, numElements): #tuple input element-wise
num = int(input())
myTuple += (num, )

print("Contents of tuple:", myTuple)
while True:
key = int(input("Enter the number to be searched:"))

498 Touchpad Computer Science (Ver. 2.0)-XI