Python: List of integers with exactly two occurrences of nineteen and at least three occurrences of five
Python Programming Puzzles: Exercise-1 with Solution
Write a Python program to find a list of integers with exactly two occurrences of nineteen and at least three occurrences of five. Return True otherwise False.
Input: [19, 19, 15, 5, 3, 5, 5, 2] Output: True Input: [19, 15, 15, 5, 3, 3, 5, 2] Output: False Input: [19, 19, 5, 5, 5, 5, 5] Output: True
Pictorial Presentation:



Sample Solution:
Python Code:
#License: https://bit.ly/3oLErEI
def test(nums):
return nums.count(19) == 2 and nums.count(5) >= 3
nums = [19,19,15,5,3,5,5,2]
print("Original list:")
print(nums)
print("Check two occurrences of nineteen and at least three occurrences of five in the said list:")
print(test(nums))
nums = [19,15,15,5,3,3,5,2]
print("\nOriginal list:")
print(nums)
print("Check two occurrences of nineteen and at least three occurrences of five in the said list:")
print(test(nums))
nums = [19,19,5,5,5,5,5]
print("\nOriginal list:")
print(nums)
print("Check two occurrences of nineteen and at least three occurrences of five in the said list:")
print(test(nums))
Sample Output:
Original list: [19, 19, 15, 5, 3, 5, 5, 2] Check two occurrences of nineteen and at least three occurrences of five in the said list: True Original list: [19, 15, 15, 5, 3, 3, 5, 2] Check two occurrences of nineteen and at least three occurrences of five in the said list: False Original list: [19, 19, 5, 5, 5, 5, 5] Check two occurrences of nineteen and at least three occurrences of five in the said list: True
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Python: Tips of the Day
Maps the values of a list to a dictionary using a function, where the key-value pairs consist of the original value as the key and the result of the function as the value:
Example:
def tips_map_dictionary(itr, fn): ret = {} for a in itr: ret[a] = fn(a) return ret print(tips_map_dictionary([2,4,6], lambda a: a * a))
Output:
{2: 4, 4: 16, 6: 36}
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