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Python: Generate and print a dictionary that contains a number in the form (x, x*x)

Python dictionary: Exercise-6 with Solution

Write a Python script to generate and print a dictionary that contains a number (between 1 and n) in the form (x, x*x).

Sample Solution:-

Python Code:

n=int(input("Input a number "))
d = dict()

for x in range(1,n+1):
    d[x]=x*x

print(d)

Sample Output:

10                                                                                                            
{1: 1, 2: 4, 3: 9, 4: 16, 5: 25, 6: 36, 7: 49, 8: 64, 9: 81, 10: 100}

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Previous: Write a Python program to iterate over dictionaries using for loops.
Next: Write a Python script to print a dictionary where the keys are numbers between 1 and 15 (both included) and the values are square of keys.

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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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