Questions on Dicts

Question 1

Concatenate the below dictionaries to create a new one.

Example:

dic1={10:100, 20:200}
dic2={30:300, 40:400}
dic3={50:500, 60:600}

Expected Output:

{10: 100, 20: 200, 30: 300, 40: 400, 50: 500, 60: 600}

dic4 = {}
for d in (dic1, dic2, dic3): 
    dic4.update(d)
    print(dic4)

Question 2

print a dictionary that takes input as n and print the dict in the form (n, nnn).

Example:

n = 3

Expected Output:

{1: 1, 2: 8, 3: 27}

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

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

print(d)

Question 3

Program to sort a given dictionary by key

dict1 = {'a': 10, 'z': 30, 'f': 20}

Expected Output:

a: 10
f: 20
z: 30

for key in sorted(dict1):
    print("%s: %s" % (key, dict1[key]))

Question 4

Create a dictionary from the given string with the letters count as value in it.

Example:

string1='aabbcccd'

Expected Output:

{'a': 2,'b': 2, 'c': 3,'d':1}