set - 12

What does the below function return ?

arr=[1,2,3,4,5]

def search(arr): 

    for i in range(len(arr)):

        if arr[i] = 3:

            return i

    return -1

• 2

• 4

• 0

• Error

What is the output of following python code

t=(3,4)

print(2*t)

• [3,3,4,4]

• (3,4,3,4)

• [3,4,4,3]

• (3,3,4,4)

What is the output of the following code

d1={"a":5,"b":60}

d2={"a":60,"b":5}

print(d1>d2)

• False

• True

• Error

• None of the above

A datatype which has unique values and is immutable ?

• tuple

• set

• frozenset

• Dictionary

Which of the following statements is true

• Recursion is always better than iteration

• Iteration is always better and simpler than recursion

• Recursion uses less memory compared to iteration

• Recursion uses more memory compared to iteration

Which sorting algorithm does python inbuilt sort function use ?

• Merge Sort

• Insertion Sort

• Combination of merge and insertion sort

• bucket sort

Which searching algorithm works best for the following array

arr = [17,25,10,9,36,12]

• Linear Search

• Binary Search

Complete the matrix multiplication program

X = [[12,7,3],

[4 ,5,6],

[7 ,8,9]]

Y = [[5,8,1,2],

[6,7,3,0],

[4,5,9,1]]

result = [[0,0,0,0],

[0,0,0,0],

[0,0,0,0]]

​ (a)   ​ ​ ​ (b)   ​ ​ (c)   ​ ​ (d)  

for r in result:

print(r)

• for k in range(len(X)):
• for i in range(len(Y[0])):
• for j in range(len(Y)):
• result[k][i] += X[k][j] * Y[j][i]
• for i in range(len(X)):
• for j in range(len(Y[0])):
• for k in range(len(Y)):

________ function returns a list

• read()

• readline()

• readlines()

• None of the above

what is the value of x if

x=int(33.65+2/2)

• 34

• 35

• 17

• 18