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What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + chr(64 + i) * i)- a)A
BB
CCC
DDDD
EEEEE - b)E
DDD
CCC
BB
A - c)A
AA
AAA
AAAA
AAAAA - d)E
EE
EEE
EEEE
EEEEE
Correct answer is option 'B'. Can you explain this answer?
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + chr(64 + i) * i)
for i in range(1, 6):
print(' ' * (5 - i) + chr(64 + i) * i)
a)
A
BB
CCC
DDDD
EEEEE
BB
CCC
DDDD
EEEEE
b)
E
DDD
CCC
BB
A
DDD
CCC
BB
A
c)
A
AA
AAA
AAAA
AAAAA
AA
AAA
AAAA
AAAAA
d)
E
EE
EEE
EEEE
EEEEE
EE
EEE
EEEE
EEEEE
|
Sonal Yadav answered |
The code prints a character pattern where each row contains a repeating character based on the row index, starting from 'E' and descending to 'A'.
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)) + ' '.join(str(j) for j in range(2, i + 1)))- a)1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5 - b)5
5 4
5 4 3
5 4 3 2
5 4 3 2 1 - c)5
4 3
3 2
2 1
1 - d)5
4 3 2
3 2 1
2 1
1
Correct answer is option 'A'. Can you explain this answer?
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)) + ' '.join(str(j) for j in range(2, i + 1)))
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)) + ' '.join(str(j) for j in range(2, i + 1)))
a)
1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
b)
5
5 4
5 4 3
5 4 3 2
5 4 3 2 1
5 4
5 4 3
5 4 3 2
5 4 3 2 1
c)
5
4 3
3 2
2 1
1
4 3
3 2
2 1
1
d)
5
4 3 2
3 2 1
2 1
1
4 3 2
3 2 1
2 1
1
|
Fahim Al Dossari answered |
The output of the code is option 'A': 12 1 23 2 1 2 34 3 2 1 2 3 45 4 3 2 1 2 3 4 5.
Explanation:
- The code uses a for loop to iterate through the range from 1 to 6, with the variable 'i' representing each iteration.
- Inside the loop, there is a print statement that combines multiple join operations.
- The first join operation is `(5 - i).join(str(j) for j in range(i, 0, -1))`. Let's break it down:
- `range(i, 0, -1)` generates a sequence of numbers starting from 'i' and going down to 1 in reverse order.
- `str(j) for j in range(i, 0, -1)` converts each number in the sequence to a string.
- `(5 - i).join(...)` joins the string representation of the numbers using `(5 - i)` as the separator. The value of `(5 - i)` decreases as 'i' increases, creating a decreasing number of separators.
- The second join operation is `join(str(j) for j in range(2, i-1))`. Let's break it down:
- `range(2, i-1)` generates a sequence of numbers starting from 2 and going up to 'i-1'.
- `str(j) for j in range(2, i-1)` converts each number in the sequence to a string.
- `join(...)` joins the string representation of the numbers using an empty string as the separator.
- The result of the two join operations is then printed on each iteration of the loop.
Here's a breakdown of the output for each iteration of the loop:
- i = 1:
- `(5 - i).join(str(j) for j in range(i, 0, -1))` evaluates to '1' (no separator).
- `join(str(j) for j in range(2, i-1))` evaluates to an empty string.
- The print statement outputs '1'.
- i = 2:
- `(5 - i).join(str(j) for j in range(i, 0, -1))` evaluates to '2 1' (separator: ' ').
- `join(str(j) for j in range(2, i-1))` evaluates to an empty string.
- The print statement outputs '2 1'.
- i = 3:
- `(5 - i).join(str(j) for j in range(i, 0, -1))` evaluates to '3 2 1' (separator: ' ').
- `join(str(j) for j in range(2, i-1))` evaluates to '2' (no separator).
- The print statement outputs '3 2 1 2'.
- i = 4:
- `(5 - i).join(str(j) for j in range(i, 0, -1))` evaluates to '4 3 2 1' (separator: ' ').
- `join(str(j) for j in range(2, i-1))` evaluates to '2 3' (separator: ' ').
Explanation:
- The code uses a for loop to iterate through the range from 1 to 6, with the variable 'i' representing each iteration.
- Inside the loop, there is a print statement that combines multiple join operations.
- The first join operation is `(5 - i).join(str(j) for j in range(i, 0, -1))`. Let's break it down:
- `range(i, 0, -1)` generates a sequence of numbers starting from 'i' and going down to 1 in reverse order.
- `str(j) for j in range(i, 0, -1)` converts each number in the sequence to a string.
- `(5 - i).join(...)` joins the string representation of the numbers using `(5 - i)` as the separator. The value of `(5 - i)` decreases as 'i' increases, creating a decreasing number of separators.
- The second join operation is `join(str(j) for j in range(2, i-1))`. Let's break it down:
- `range(2, i-1)` generates a sequence of numbers starting from 2 and going up to 'i-1'.
- `str(j) for j in range(2, i-1)` converts each number in the sequence to a string.
- `join(...)` joins the string representation of the numbers using an empty string as the separator.
- The result of the two join operations is then printed on each iteration of the loop.
Here's a breakdown of the output for each iteration of the loop:
- i = 1:
- `(5 - i).join(str(j) for j in range(i, 0, -1))` evaluates to '1' (no separator).
- `join(str(j) for j in range(2, i-1))` evaluates to an empty string.
- The print statement outputs '1'.
- i = 2:
- `(5 - i).join(str(j) for j in range(i, 0, -1))` evaluates to '2 1' (separator: ' ').
- `join(str(j) for j in range(2, i-1))` evaluates to an empty string.
- The print statement outputs '2 1'.
- i = 3:
- `(5 - i).join(str(j) for j in range(i, 0, -1))` evaluates to '3 2 1' (separator: ' ').
- `join(str(j) for j in range(2, i-1))` evaluates to '2' (no separator).
- The print statement outputs '3 2 1 2'.
- i = 4:
- `(5 - i).join(str(j) for j in range(i, 0, -1))` evaluates to '4 3 2 1' (separator: ' ').
- `join(str(j) for j in range(2, i-1))` evaluates to '2 3' (separator: ' ').
What will be the output of the following code?
import repattern = r"\b[A-Z][a-z]+\b"
text = "The quick Brown fox jumps over the lazy Dog"
result = re.findall(pattern, text)
print(result)- a)['The', 'Brown', 'Dog']
- b)['quick', 'jumps', 'over', 'lazy']
- c)['The', 'Brown', 'Dog', 'quick', 'jumps', 'over', 'lazy']
- d)Error
Correct answer is option 'A'. Can you explain this answer?
What will be the output of the following code?
import re
import re
pattern = r"\b[A-Z][a-z]+\b"
text = "The quick Brown fox jumps over the lazy Dog"
result = re.findall(pattern, text)
print(result)
text = "The quick Brown fox jumps over the lazy Dog"
result = re.findall(pattern, text)
print(result)
a)
['The', 'Brown', 'Dog']
b)
['quick', 'jumps', 'over', 'lazy']
c)
['The', 'Brown', 'Dog', 'quick', 'jumps', 'over', 'lazy']
d)
Error
|
Khalid Al Khouri answered |
There seems to be a syntax error in the code provided. The import statement is incomplete and the variable name "repattern" is not assigned any value.
What will be the output of the following code?
import repattern = r"\b[A-Z][a-z]+\b"
text = "The quick brown fox jumps over the lazy dog."
result = re.sub(pattern, "animal", text)
print(result)- a)The animal animal animal animal animal animal animal animal animal.
- b)The quick brown fox jumps over the lazy dog.
- c)The quick brown fox jumps over the lazy animal.
- d)Error
Correct answer is option 'C'. Can you explain this answer?
What will be the output of the following code?
import re
import re
pattern = r"\b[A-Z][a-z]+\b"
text = "The quick brown fox jumps over the lazy dog."
result = re.sub(pattern, "animal", text)
print(result)
text = "The quick brown fox jumps over the lazy dog."
result = re.sub(pattern, "animal", text)
print(result)
a)
The animal animal animal animal animal animal animal animal animal.
b)
The quick brown fox jumps over the lazy dog.
c)
The quick brown fox jumps over the lazy animal.
d)
Error
|
|
Khalid Al Khouri answered |
There seems to be an error in the code provided. The code is incomplete and does not contain any valid statement or expression.
What will be the output of the following code?
import repattern = r"\b\d{3}-\d{3}-\d{4}\b"
text = "Contact me at 123-456-7890"
result = re.search(pattern, text)
print(result.group())- a)123-456-7890
- b)123
- c)456
- d)Error
Correct answer is option 'A'. Can you explain this answer?
What will be the output of the following code?
import re
import re
pattern = r"\b\d{3}-\d{3}-\d{4}\b"
text = "Contact me at 123-456-7890"
result = re.search(pattern, text)
print(result.group())
text = "Contact me at 123-456-7890"
result = re.search(pattern, text)
print(result.group())
a)
123-456-7890
b)
123
c)
456
d)
Error
|
|
Sonal Yadav answered |
The regular expression pattern "\b\d{3}-\d{3}-\d{4}\b" will match a phone number in the format "XXX-XXX-XXXX". The search() function returns the first occurrence that matches the pattern.
What is the output of the following code?
for i in range(5, 0, -1):
print(str(i) * i)- a)55555
4444
333
22
1 - b)5
44
333
2222
11111 - c)1
22
333
4444
55555 - d)1
11
111
1111
11111
Correct answer is option 'B'. Can you explain this answer?
What is the output of the following code?
for i in range(5, 0, -1):
print(str(i) * i)
for i in range(5, 0, -1):
print(str(i) * i)
a)
55555
4444
333
22
1
4444
333
22
1
b)
5
44
333
2222
11111
44
333
2222
11111
c)
1
22
333
4444
55555
22
333
4444
55555
d)
1
11
111
1111
11111
11
111
1111
11111
|
|
Sonal Yadav answered |
The code prints a number pattern where each row contains a repeating number based on the row index.
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + '* ' * i)- a)*
* *
* * *
* * * *
* * * * * - b)* *
* * *
* * * *
* * * * *
* * * * * * - c)*
* * *
* * * *
* * * * * - d)* *
* * *
* * * *
* * * * *
Correct answer is option 'A'. Can you explain this answer?
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + '* ' * i)
for i in range(1, 6):
print(' ' * (5 - i) + '* ' * i)
a)
*
* *
* * *
* * * *
* * * * *
* *
* * *
* * * *
* * * * *
b)
* *
* * *
* * * *
* * * * *
* * * * * *
* * *
* * * *
* * * * *
* * * * * *
c)
*
* * *
* * * *
* * * * *
* * *
* * * *
* * * * *
d)
* *
* * *
* * * *
* * * * *
* * *
* * * *
* * * * *
|
Majid Al Ali answered |
Explanation:
The given code is using a loop to print a pattern of asterisks (*). Let's break down the code and analyze the output.
1. Loop:
The code uses a for loop to iterate from 1 to 5 (inclusive).
- The range(1, 6) generates the numbers 1, 2, 3, 4, and 5.
2. Print Statement:
Inside the loop, there is a print statement that generates the pattern of asterisks.
- The pattern consists of spaces and asterisks (*).
- The number of spaces in each line is determined by subtracting the current iteration number from 5 (5 - i).
- The number of asterisks in each line is equal to the iteration number (i).
3. Output:
Let's go through each iteration and see the output:
- Iteration 1:
- Spaces: 5 - 1 = 4
- Asterisks: 1
- Output: " *"
- Iteration 2:
- Spaces: 5 - 2 = 3
- Asterisks: 2
- Output: " * *"
- Iteration 3:
- Spaces: 5 - 3 = 2
- Asterisks: 3
- Output: " * * *"
- Iteration 4:
- Spaces: 5 - 4 = 1
- Asterisks: 4
- Output: " * * * *"
- Iteration 5:
- Spaces: 5 - 5 = 0
- Asterisks: 5
- Output: "* * * * *"
4. Final Output:
The final output is the combination of all the outputs from each iteration.
- " *"
- " * *"
- " * * *"
- " * * * *"
- "* * * * *"
Therefore, the correct answer is option 'A' which represents the pattern:
- *
- * *
- * * *
- * * * *
- * * * * *
The given code is using a loop to print a pattern of asterisks (*). Let's break down the code and analyze the output.
1. Loop:
The code uses a for loop to iterate from 1 to 5 (inclusive).
- The range(1, 6) generates the numbers 1, 2, 3, 4, and 5.
2. Print Statement:
Inside the loop, there is a print statement that generates the pattern of asterisks.
- The pattern consists of spaces and asterisks (*).
- The number of spaces in each line is determined by subtracting the current iteration number from 5 (5 - i).
- The number of asterisks in each line is equal to the iteration number (i).
3. Output:
Let's go through each iteration and see the output:
- Iteration 1:
- Spaces: 5 - 1 = 4
- Asterisks: 1
- Output: " *"
- Iteration 2:
- Spaces: 5 - 2 = 3
- Asterisks: 2
- Output: " * *"
- Iteration 3:
- Spaces: 5 - 3 = 2
- Asterisks: 3
- Output: " * * *"
- Iteration 4:
- Spaces: 5 - 4 = 1
- Asterisks: 4
- Output: " * * * *"
- Iteration 5:
- Spaces: 5 - 5 = 0
- Asterisks: 5
- Output: "* * * * *"
4. Final Output:
The final output is the combination of all the outputs from each iteration.
- " *"
- " * *"
- " * * *"
- " * * * *"
- "* * * * *"
Therefore, the correct answer is option 'A' which represents the pattern:
- *
- * *
- * * *
- * * * *
- * * * * *
What is the output of the following code?
for i in range(5):
print('*' * i)- a)*
- b)**
- c)***
- d)****
Correct answer is option 'C'. Can you explain this answer?
What is the output of the following code?
for i in range(5):
print('*' * i)
for i in range(5):
print('*' * i)
a)
*
b)
**
c)
***
d)
****
|
|
Sonal Yadav answered |
The code prints a star pattern where each row contains an increasing number of asterisks.
How can you create a character pattern in Python?- a)By using the ord() and chr() functions.
- b)By using the format() function.
- c)By using the str() function.
- d)By using the random module.
Correct answer is option 'A'. Can you explain this answer?
How can you create a character pattern in Python?
a)
By using the ord() and chr() functions.
b)
By using the format() function.
c)
By using the str() function.
d)
By using the random module.
|
|
Sonal Yadav answered |
Character patterns can be created by using the ord() and chr() functions to convert characters to their ASCII values and vice versa.
Which pattern can be used to match an email address format?- a)r"\w+@\w+.\w+"
- b)r"\d{3}-\d{3}-\d{4}"
- c)r"\b[A-Z][a-z]+\b"
- d)r"^http://www\.\w+\.\w+$"
Correct answer is option 'A'. Can you explain this answer?
Which pattern can be used to match an email address format?
a)
r"\w+@\w+.\w+"
b)
r"\d{3}-\d{3}-\d{4}"
c)
r"\b[A-Z][a-z]+\b"
d)
r"^http://www\.\w+\.\w+$"
|
|
Sonal Yadav answered |
The pattern "r"\w+@\w+.\w+"" matches an email address in the format "username@domain.extension" where "username", "domain", and "extension" consist of one or more word characters.
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(1, i + 1)))- a)1
1 2
1 2 3
1 2 3 4
1 2 3 4 5 - b)5
4 3
2 1
1 - c)5
4 4
3 3 3
2 2 2 2
1 1 1 1 1 - d)5
4 3
3 2 1
2 1
1
Correct answer is option 'A'. Can you explain this answer?
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(1, i + 1)))
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(1, i + 1)))
a)
1
1 2
1 2 3
1 2 3 4
1 2 3 4 5
1 2
1 2 3
1 2 3 4
1 2 3 4 5
b)
5
4 3
2 1
1
4 3
2 1
1
c)
5
4 4
3 3 3
2 2 2 2
1 1 1 1 1
4 4
3 3 3
2 2 2 2
1 1 1 1 1
d)
5
4 3
3 2 1
2 1
1
4 3
3 2 1
2 1
1
|
|
Sonal Yadav answered |
The code prints a number pattern where each row contains an increasing sequence of numbers.
Which character is used to represent any single character in a regular expression pattern?- a)*
- b)$
- c).
- d)+
Correct answer is option 'C'. Can you explain this answer?
Which character is used to represent any single character in a regular expression pattern?
a)
*
b)
$
c)
.
d)
+
|
|
Sonal Yadav answered |
The dot character (".") in a regular expression pattern represents any single character.
Which of the following statements is true about patterns in Python?- a)Patterns are used only for decorative purposes.
- b)Patterns are used to solve complex mathematical problems.
- c)Patterns are a sequence of characters or numbers arranged in a specific order.
- d)Patterns cannot be created using loops in Python.
Correct answer is option 'C'. Can you explain this answer?
Which of the following statements is true about patterns in Python?
a)
Patterns are used only for decorative purposes.
b)
Patterns are used to solve complex mathematical problems.
c)
Patterns are a sequence of characters or numbers arranged in a specific order.
d)
Patterns cannot be created using loops in Python.
|
|
Sonal Yadav answered |
Patterns in Python refer to a sequence of characters or numbers arranged in a specific order, often used for decorative or logical purposes.
What will be the output of the following code?
import repattern = r"\b([a-z]+) \1\b"
text = "The cat in the hat is the best cat"
result = re.findall(pattern, text)
print(result)
- a)['cat']
- b)['The cat', 'the best cat']
- c)['The cat in the hat is the best cat']
- d)Error
Correct answer is option 'A'. Can you explain this answer?
What will be the output of the following code?
import re
import re
pattern = r"\b([a-z]+) \1\b"
text = "The cat in the hat is the best cat"
result = re.findall(pattern, text)
print(result)
text = "The cat in the hat is the best cat"
result = re.findall(pattern, text)
print(result)
a)
['cat']
b)
['The cat', 'the best cat']
c)
['The cat in the hat is the best cat']
d)
Error
|
|
Sonal Yadav answered |
The regular expression pattern "\b([a-z]+) \1\b" uses a capturing group to match a word followed by a space and the same word again. The findall() function returns all matches in the text.
Which regular expression pattern can be used to match a URL starting with "https://"?- a)r"https://\w+.\w+.\w+"
- b)r"http://\w+.\w+.\w+"
- c)r"\b[A-Z][a-z]+\b"
- d)r"^https://\w+.\w+.\w+$"
Correct answer is option 'D'. Can you explain this answer?
Which regular expression pattern can be used to match a URL starting with "https://"?
a)
r"https://\w+.\w+.\w+"
b)
r"http://\w+.\w+.\w+"
c)
r"\b[A-Z][a-z]+\b"
d)
r"^https://\w+.\w+.\w+$"
|
|
Sonal Yadav answered |
The pattern "r"^https://\w+.\w+.\w+$"" matches a URL starting with "https://" followed by a domain and extension. The caret (^) matches the start of the string, and the dollar sign ($) matches the end of the string.
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)) + ' '.join(str(j) for j in range(i - 1, 0, -1)) + ' '.join(str(j) for j in range(2, i + 1)))- a)1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5 - b)1
2 1
3 2 1
4 3 2 1
5 4 3 2 1 - c)1
2 2
3 3 3
4 4 4 4
5 5 5 5 5 - d)5
4 3 2
3 2 1
2 1
1
Correct answer is option 'A'. Can you explain this answer?
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)) + ' '.join(str(j) for j in range(i - 1, 0, -1)) + ' '.join(str(j) for j in range(2, i + 1)))
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)) + ' '.join(str(j) for j in range(i - 1, 0, -1)) + ' '.join(str(j) for j in range(2, i + 1)))
a)
1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
b)
1
2 1
3 2 1
4 3 2 1
5 4 3 2 1
2 1
3 2 1
4 3 2 1
5 4 3 2 1
c)
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
2 2
3 3 3
4 4 4 4
5 5 5 5 5
d)
5
4 3 2
3 2 1
2 1
1
4 3 2
3 2 1
2 1
1
|
|
Sonal Yadav answered |
The code prints a combination of increasing and decreasing sequences of numbers to create a pattern.
Which of the following statements is true about number patterns in Python?- a)Number patterns can only be created using mathematical functions.
- b)Number patterns are always arithmetic sequences.
- c)Number patterns can be created using loops and conditional statements.
- d)Number patterns cannot contain prime numbers.
Correct answer is option 'C'. Can you explain this answer?
Which of the following statements is true about number patterns in Python?
a)
Number patterns can only be created using mathematical functions.
b)
Number patterns are always arithmetic sequences.
c)
Number patterns can be created using loops and conditional statements.
d)
Number patterns cannot contain prime numbers.
|
|
Sonal Yadav answered |
Number patterns can be created by using loops and conditional statements to control the order and repetition of numbers in the pattern.
Which module in Python is used for regular expression operations?- a)math
- b)re
- c)regex
- d)string
Correct answer is option 'B'. Can you explain this answer?
Which module in Python is used for regular expression operations?
a)
math
b)
re
c)
regex
d)
string
|
|
Sonal Yadav answered |
The "re" module in Python provides support for regular expression operations.
Given the following code, what will be the output?
import repattern = r"\b[A-Za-z]+\b"
text = "The quick brown fox jumps over the lazy dog."
result = re.findall(pattern, text)
print(len(result))
- a)6
- b)8
- c)9
- d)10
Correct answer is option 'B'. Can you explain this answer?
Given the following code, what will be the output?
import re
import re
pattern = r"\b[A-Za-z]+\b"
text = "The quick brown fox jumps over the lazy dog."
result = re.findall(pattern, text)
print(len(result))
text = "The quick brown fox jumps over the lazy dog."
result = re.findall(pattern, text)
print(len(result))
a)
6
b)
8
c)
9
d)
10
|
|
Sonal Yadav answered |
The regular expression pattern "\b[A-Za-z]+\b" matches words in the given text. The findall() function returns a list of all matched words, and len(result) gives the count of matched words.
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)) + ' '.join(str(j) for j in range(i - 1, 0, -1)))- a)1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5 - b)1
2 1
3 2 1
4 3 2 1
5 4 3 2 1 - c)1
2 2
3 3 3
4 4 4 4
5 5 5 5 5 - d)5
4 3 2
3 2 1
2 1
1
Correct answer is option 'A'. Can you explain this answer?
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)) + ' '.join(str(j) for j in range(i - 1, 0, -1)))
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)) + ' '.join(str(j) for j in range(i - 1, 0, -1)))
a)
1
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
2 1 2
3 2 1 2 3
4 3 2 1 2 3 4
5 4 3 2 1 2 3 4 5
b)
1
2 1
3 2 1
4 3 2 1
5 4 3 2 1
2 1
3 2 1
4 3 2 1
5 4 3 2 1
c)
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
2 2
3 3 3
4 4 4 4
5 5 5 5 5
d)
5
4 3 2
3 2 1
2 1
1
4 3 2
3 2 1
2 1
1
|
|
Sonal Yadav answered |
The code prints a combination of increasing and decreasing sequences of numbers to create a pattern.
What will be the output of the following code?
import repattern = r"co[a-z]+e"
text = "I love coding and coffee!"
result = re.findall(pattern, text)
print(result)
- a)[]
- b)['coding', 'coffee']
- c)['coding']
- d)Error
Correct answer is option 'B'. Can you explain this answer?
What will be the output of the following code?
import re
import re
pattern = r"co[a-z]+e"
text = "I love coding and coffee!"
result = re.findall(pattern, text)
print(result)
text = "I love coding and coffee!"
result = re.findall(pattern, text)
print(result)
a)
[]
b)
['coding', 'coffee']
c)
['coding']
d)
Error
|
|
Sonal Yadav answered |
The regular expression pattern "co[a-z]+e" will match any substring starting with "co", followed by one or more lowercase letters, and ending with "e".
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + str(i) * i)- a)1
22
333
4444
55555 - b)55555
4444
333
22
1 - c)11111
2222
333
44
5 - d)12345
1234
123
12
1
Correct answer is option 'A'. Can you explain this answer?
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + str(i) * i)
for i in range(1, 6):
print(' ' * (5 - i) + str(i) * i)
a)
1
22
333
4444
55555
22
333
4444
55555
b)
55555
4444
333
22
1
4444
333
22
1
c)
11111
2222
333
44
5
2222
333
44
5
d)
12345
1234
123
12
1
1234
123
12
1
|
|
Sonal Yadav answered |
The code prints a combination of spaces and numbers to create a pyramid-like pattern.
In Python, how can you create a star pattern using a loop?- a)By using the print() function repeatedly.
- b)By using the input() function repeatedly.
- c)By using the break statement in a loop.
- d)By using the range() function in a loop.
Correct answer is option 'D'. Can you explain this answer?
In Python, how can you create a star pattern using a loop?
a)
By using the print() function repeatedly.
b)
By using the input() function repeatedly.
c)
By using the break statement in a loop.
d)
By using the range() function in a loop.
|
|
Sonal Yadav answered |
A star pattern can be created by using the range() function in a loop and printing the required number of stars in each iteration.
Which statement best describes patterns in Python?- a)Patterns are used to manipulate strings only.
- b)Patterns are a way to control the flow of execution in a program.
- c)Patterns are a set of rules for matching and manipulating data.
- d)Patterns are used to generate random numbers.
Correct answer is option 'C'. Can you explain this answer?
Which statement best describes patterns in Python?
a)
Patterns are used to manipulate strings only.
b)
Patterns are a way to control the flow of execution in a program.
c)
Patterns are a set of rules for matching and manipulating data.
d)
Patterns are used to generate random numbers.
|
|
Sonal Yadav answered |
Patterns in Python refer to regular expressions that allow us to match and manipulate specific patterns of text or data.
What does the "^" character represent in a regular expression pattern?- a)Matches the beginning of a line.
- b)Matches the end of a line.
- c)Matches any character.
- d)Matches a digit character.
Correct answer is option 'A'. Can you explain this answer?
What does the "^" character represent in a regular expression pattern?
a)
Matches the beginning of a line.
b)
Matches the end of a line.
c)
Matches any character.
d)
Matches a digit character.
|
|
Sonal Yadav answered |
The "^" character in a regular expression pattern is used to match the beginning of a line.
What is the purpose of regular expressions in Python?- a)To perform complex mathematical computations.
- b)To manipulate and transform data.
- c)To search and match patterns in strings.
- d)To create graphical user interfaces.
Correct answer is option 'C'. Can you explain this answer?
What is the purpose of regular expressions in Python?
a)
To perform complex mathematical computations.
b)
To manipulate and transform data.
c)
To search and match patterns in strings.
d)
To create graphical user interfaces.
|
|
Sonal Yadav answered |
Regular expressions in Python are primarily used to search for and match specific patterns within strings.
What will be the output of the following code?
import repattern = r"\d+"
text = "There are 10 apples and 20 oranges."
result = re.split(pattern, text)
print(result)- a)['There are ', ' apples and ', ' oranges.']
- b)['There are', 'apples and', 'oranges.']
- c)['There', 'are', 'apples', 'and', 'oranges.']
- d)Error
Correct answer is option 'C'. Can you explain this answer?
What will be the output of the following code?
import re
import re
pattern = r"\d+"
text = "There are 10 apples and 20 oranges."
result = re.split(pattern, text)
print(result)
text = "There are 10 apples and 20 oranges."
result = re.split(pattern, text)
print(result)
a)
['There are ', ' apples and ', ' oranges.']
b)
['There are', 'apples and', 'oranges.']
c)
['There', 'are', 'apples', 'and', 'oranges.']
d)
Error
|
|
Sonal Yadav answered |
The split() function splits the text based on the regular expression pattern "\d+", which matches one or more digits. The resulting list contains the substrings between the digits.
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)))- a)1
2 1
3 2 1
4 3 2 1
5 4 3 2 1 - b)5
5 4
5 4 3
5 4 3 2
5 4 3 2 1 - c)1
2 2
3 3 3
4 4 4 4
5 5 5 5 5 - d)1
2 3
3 2 1
4 3 2 1
5 4 3 2 1
Correct answer is option 'B'. Can you explain this answer?
What is the output of the following code?
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)))
for i in range(1, 6):
print(' ' * (5 - i) + ' '.join(str(j) for j in range(i, 0, -1)))
a)
1
2 1
3 2 1
4 3 2 1
5 4 3 2 1
2 1
3 2 1
4 3 2 1
5 4 3 2 1
b)
5
5 4
5 4 3
5 4 3 2
5 4 3 2 1
5 4
5 4 3
5 4 3 2
5 4 3 2 1
c)
1
2 2
3 3 3
4 4 4 4
5 5 5 5 5
2 2
3 3 3
4 4 4 4
5 5 5 5 5
d)
1
2 3
3 2 1
4 3 2 1
5 4 3 2 1
2 3
3 2 1
4 3 2 1
5 4 3 2 1
|
|
Sonal Yadav answered |
The code prints a number pattern where each row contains a decreasing sequence of numbers.
What is the purpose of using nested loops in pattern creation?- a)To make the code shorter and more efficient.
- b)To avoid repetition of code.
- c)To control the number of iterations in a loop.
- d)To create complex patterns with multiple levels of repetition.
Correct answer is option 'D'. Can you explain this answer?
What is the purpose of using nested loops in pattern creation?
a)
To make the code shorter and more efficient.
b)
To avoid repetition of code.
c)
To control the number of iterations in a loop.
d)
To create complex patterns with multiple levels of repetition.
|
|
Sonal Yadav answered |
Nested loops are used to create complex patterns that involve multiple levels of repetition. Each nested loop controls a different level of repetition.
What will be the output of the following code?
import repattern = r"\d{2}-\d{2}-\d{4}"
text = "DOB: 01-01-2000, SSN: 123-45-6789"
result = re.findall(pattern, text)
print(result)
- a)[]
- b)['01-01-2000', '123-45-6789']
- c)['01', '01', '2000', '123', '45', '6789']
- d)Error
Correct answer is option 'B'. Can you explain this answer?
What will be the output of the following code?
import re
import re
pattern = r"\d{2}-\d{2}-\d{4}"
text = "DOB: 01-01-2000, SSN: 123-45-6789"
result = re.findall(pattern, text)
print(result)
text = "DOB: 01-01-2000, SSN: 123-45-6789"
result = re.findall(pattern, text)
print(result)
a)
[]
b)
['01-01-2000', '123-45-6789']
c)
['01', '01', '2000', '123', '45', '6789']
d)
Error
|
|
Sonal Yadav answered |
The regular expression pattern "\d{2}-\d{2}-\d{4}" matches two digits, followed by a hyphen, followed by two digits, another hyphen, and four digits. The findall() function returns a list of all matched patterns in the text.
Chapter doubts & questions for Patterns - Python for EmSAT Achieve 2025 is part of EmSAT Achieve exam preparation. The chapters have been prepared according to the EmSAT Achieve exam syllabus. The Chapter doubts & questions, notes, tests & MCQs are made for EmSAT Achieve 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests here.
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