Python: Rotate a Deque Object specified number (positive) of times
Python Collections: Exercise-13 with Solution
Write a Python program to rotate a Deque Object specified number (positive) of times.
Sample Solution:
Python Code:
import collections
# declare an empty deque object
dq_object = collections.deque()
# Add elements to the deque - left to right
dq_object.append(2)
dq_object.append(4)
dq_object.append(6)
dq_object.append(8)
dq_object.append(10)
print("Deque before rotation:")
print(dq_object)
# Rotate once in positive direction
dq_object.rotate()
print("\nDeque after 1 positive rotation:")
print(dq_object)
# Rotate twice in positive direction
dq_object.rotate(2)
print("\nDeque after 2 positive rotations:")
print(dq_object)
Sample Output:
Deque before rotation: deque([2, 4, 6, 8, 10]) Deque after 1 positive rotation: deque([10, 2, 4, 6, 8]) Deque after 2 positive rotations: deque([6, 8, 10, 2, 4])
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Previous: Write a Python program to count the number of times a specific element presents in a deque object.
Next: Write a Python program to rotate a deque Object specified number (negative) of times.
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Python: Tips of the Day
Capitalizes the first letter of a string:
Example:
def tips_capitalize(s, lower_rest=False): return s[:1].upper() + (s[1:].lower() if lower_rest else s[1:]) print(tips_capitalize('pythonTips')) print(tips_capitalize('pythonTips', True))
Output:
PythonTips Pythontips
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