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Python: Find the three smallest integers from a given list of numbers using Heap queue algorithm

Python heap queue algorithm: Exercise-2 with Solution

Write a Python program to find the three smallest integers from a given list of numbers using Heap queue algorithm.

Sample Solution:

Python Code:

import heapq as hq
nums_list = [25, 35, 22, 85, 14, 65, 75, 22, 58]
print("Original list:")
print(nums_list)
# Find three smallest values
largest_nums = hq.nsmallest(3, nums_list)
print("\nThree smallest numbers are:", largest_nums)

Sample Output:

Original list:
[25, 35, 22, 85, 14, 65, 75, 22, 58]

Three smallest numbers are: [14, 22, 22]

Flowchart:

Python heap queue algorithm: Find the three smallest integers from a given list of numbers using Heap queue algorithm.

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Python Code Editor:

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Python: Tips of the Day

Creates a dictionary with the same keys as the provided dictionary and values generated by running the provided function for each value:

Example:

def tips_map_values(obj, fn):
  ret = {}
  for key in obj.keys():
    ret[key] = fn(obj[key])
  return ret
users = {
  'Owen': { 'user': 'Owen', 'age': 29 },
  'Eddie': { 'user': 'Eddie', 'age': 15 }
}

print(tips_map_values(users, lambda u : u['age'])) # {'Owen': 29, 'Eddie': 15}

Output:

{'Owen': 29, 'Eddie': 15}