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IITM BS Week 6 Programming in Python Questions | Prasnya

Programming in Python > Week 6

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36Q

Which of the following snippets will raise a `TypeError` on execution? **Code-1** ``` X = ([1, 2],) X[0].append(3) ``` **Code-2** ``` Y = (1, 2, 3) Y += (4,) ``` **Code-3** ``` Z = ([1, 2], [3, 4]) Z[1] = [5, 6] ```

records is a list of tuples (name, score). Select all correct snippets that produce a list of names scoring strictly above 80, sorted by score descending. Choose the correct option(s):

Multiple correct

What is the output? ``` L = [2, 4, 6] S = [] T = 0 for i in range(len(L)): S += L[:i+1] for x in S: T += x print(T) ``` Enter an integer as your answer.

Given the following code snippet, what will be the output? ``` a = (1, 2) b = (3, 4) c = ((5, 6),) d = a + b + c e = d[2:] f = d[:2] + e[2:] print(f) ```

Consider the following snippet of code: select all that apply. ``` t1 = (1, 2, 3) t2 = (4, 5, 6) t3 = t1 + t2 t4 = (t1, t2) print(t3[2:5]) print(len(t4)) print(5 in t2) try: t1[0] = 10 except: t1 = t3[0] print(t1) ```

Multiple correct

Consider the below python code. What will be the output of the given code? Enter an integer as your answer. ``` lst = [] for i in range(5): lst.append(i) lst.append(i*10) lst[1:4] = [100] print(sum(lst)) ```

Consider the following Python code snippet: ``` class StudentRecords: def __init__(self): self.students = ["Ram", "Rajesh", "Suresh"] def add_student(self, name): self.students.append(name) def update_student(self, index, name): self.students[index] = name def get_students(self): return self.students records = StudentRecords() records.update_student(2, "Mukesh") records.add_student("Ramesh") for student in records.get_students(): print(student) ```

Consider the following snippet of code: What will be the value printed by this program? ``` nums = [3, 6, 9, 12, 15] result = [] i = 0 while i < len(nums): result += nums[i:i+1] + nums[i::] i += 1 print(len(result)) ```

What is the output of the following snippet of code? ``` sentences = [ "A blue box.", "Python is powerful.", "Blue Bottle" ] c = 0 s = "" for i in sentences: words = i.split() c_s = 0 for word in words: if len(word) % 2 == 0: c_s += 1 if c_s >= c: c = c_s s = i print(s) ```

22 December 2024

Consider the following snippet of code: What will be the value of S[-1] at the end of execution of the above code? Enter an integer as your answer. ``` L = [1, 2, 3, 4, 5] S = [] i = 0 while i < len(L): S = [L[i]] + L[i:] i += 1 ```

22 December 2024

Which of the following snippets correctly create a list of squares of even numbers from 0 to 10 both inclusive ([0, 4, 16, 36, 64, 100])? Select all that apply.

Multiple correct

22 December 2024

Select all code snippets that run without any error.

Multiple correct

22 December 2024

What will be the return value when invoking some_algo([1, 2, 3, 4, 5], 8)?

22 December 2024

For which of the following sets of arguments will the function some_algo() return None?

22 December 2024

Consider the following function. The output when we invoke `createList([1,2,5])` is: Code Snippet ``` def createList(nums): outlist = [[]] for x in nums: for y in range(len(outlist)): outlist.append(outlist[y]+[x]) print(outlist) ```

01 September 2024

Consider the Python code given below. How many number of lines will be present in the file `output.txt` after the execution of the above code? Code Snippet f = open('output.txt', 'w') f.write('rose') f.write('jasmine\n') f.write('''lotus lilly orchard''') f.close()

01 September 2024

Consider the below snippets which are intended to create a dictionary with the elements as key and their frequency in the given list as values. Choose all the correct options regarding the given code. Snippet-1 L = ['yellow', 'indigo', 'blue', 'yellow', 'blue'] freq = {word: L.count(word) for word in L} print(freq) Snippet-2 L = ['yellow', 'indigo', 'blue', 'yellow', 'blue'] freq = {word: count(word) for word in L} print(freq)

Multiple correct

01 September 2024

What is the output of the following snippet of code? L = [x ** 2 if x % 2 == 0 else 2 * x for x in range(1, 11)] print(L)

Consider the following snippets of code. Select all true statements. # Code-1 L = [1, 2, 3] L.append(4) # Code-2 T = (1, 2, 3) T[0] = 4 # Code-3 D = {'one': 1} print(D['one'])

Multiple correct

L is a list of tuples. Each tuple is of the form `(name, age)`. Select all snippets of code that create a list `names` that contains the names of people whose age is above 45. A sample list `L` and the expected output is given below. You can assume that `L` is already available to you. Sample Input: L = [('Ajay', 48), ('Anita', 50), ('Alfred', 39), ('Ahmed', 38), ('Afnan', 38), ('Ananya', 50)] Sample Output: ['Ajay', 'Anita', 'Ananya']

Multiple correct

24 December 2023

Select all code snippets that run without any error.

Multiple correct

03 September 2023

Consider the following snippet of code: ``` L = [1, 2, 3, 4, 5] S = [] Y = 0 i = 0 while i < len(L): S = S + L[i:] + L[:i] for j in S: Y = j i += 1 ``` What will be the value of len(S) at the end of execution of the above code?

03 September 2023

People from four different cities have come for an interview: Amethi, Trichy, Goa and Cochin. They are all seated on a long row of chairs waiting for their turn. A seating plan is termed good if no person finds himself sandwiched between two persons from the same city that is different from his. For example, ['C', 'A', 'T', 'G', 'C', 'T'] is a bad seating plan as the person from Goa finds two persons from Trichy seated on either side. ['A', 'T', 'T', 'T', 'G', 'A', 'T'] is a good seating plan as even though the person from Trichy is sitting between two persons from Trichy, they are still from his city. This seating plan is represented by a list L. Write a function named plan_type that accepts L as argument. It should return the string "good" if it is a good seating plan, and "bad" otherwise. You can assume that len(L) >= 3. Sample input-output behavior is given below: Select the correct implementation of this function.

The variable number represents a positive integer. Which of the following options are equivalent to the below code block? ``` temp = number total = 0 times = len(str(number)) while temp > 0: remainder = temp % 10 total = total + (remainder ** times) temp = temp // 10 if number == total: print(True) else: print(False) ```

Consider the following snippet of code: ``` L = [1, 2, 3, 4, 5] S = [] T = 0 i = 0 while i < len(L): S = L[i:] + L[:i] for j in S: T += j * L[i] i += 1 ``` What will be the value of T at the end of execution of the above code?

The variable number represents a positive integer. Which of the following options are equivalent to the below code block? ``` temp = number total = 0 times = len(str(number)) while temp > 0: remainder = temp % 10 total = total + (remainder ** times) temp = temp // 10 if number == total: print(True) else: print(False) ```

11 December 2022

Which of the following options swaps the first and the last value of a list L with more than 2 elements.

Multiple correct

11 December 2022

Consider the following function. ``` def interesting(word): out = "" # there is no space between the quotes for char in word: flag = True for i in range(len(out)): if out[i] >= char: out = out[:i] + char + out[i:] flag = False break if flag: out = out + char return out == word ``` Select all function calls that return the value True.

Multiple correct

11 December 2022

A function compress uses a string data and a list flag of the same size and returns a substring of characters from data if the corresponding value in flag is set to 1, otherwise it is skipped. Select correct implementation of the function compress.

Multiple correct

11 December 2022

Consider the following snippet of code. ``` while len(L) > 2: val_1 = L[0] for x in L: if x > val_1: val_1 = x L.remove(val_1) val_2 = L[0] for x in L: if x < val_2: val_2 = x L.remove(val_2) print(sum(L) // len(L)) ``` What will be the output of the code given above for L = [1, 9, 2, 8, 3, 7, 5, 4, 6]?

11 December 2022

What is the value returned by f(L)?

11 December 2022

What is the value returned by g(L, 's')?

11 December 2022

What is the value returned by h(L, 'e')?

11 December 2022

What should be the Input to the following code-block for its output to be common? ``` char = input() words = ['fray', 'than', 'plank', 'black', 'flask', 'smack', 'grand', 'place'] count = 0 for word in words: if char in word: count += 1 if count == len(words): print('common') else: print('not common') ```

n

is a positive integer, what is the output of the following snippet of code? ``` P = [x for x in range(1, 2 * n + 1)] Q = [P[i] - P[i - 1] for i in range(0, n)] print(sum(P)) ```

What is the output of the following snippet of code? ``` L = [x // 2 if x % 2 == 0 else x * 2 for x in range(1, 10)] print(L) ```

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