Python Dictionary Programs Solutions From APC Book Class 11 CBSE

By /

Dictionary Programs Solutions From APC Book

Write a code in Python to create a dictionary having names of your friends as values associated with suitable keys. Display the names of the friends whose names contain more than three characters.

import json
d={}  #define an empty dictionary
n = int(input("Enter the number of friends:"))
for i in range(n):
    name=input("Enter your friend's name")
    key=input("Enter suitable nick name")
    d[key]=name 
print("The dictionary is\n",json.dumps(d,indent=4))
print("The names of the friends having more than 3 characters")
for i in d:
    print(d[i] if len(d[i])>3 else None)

Write a Python code to create a dictionary containing three key-value pair such that each value contains a list of integers. Find

import json
d={} #empty dictionary
for i in range(3): 
    print(f"Enter the numbers for {i+1} key-value pair")
    L=[] #empty list
    while True:
        n = int(input("Enter a number:"))
        L.append(n)
        k = input("Do you to continue: Y/N")
        if k.lower() == "n":
            break
    m=i+1
    key = "Key"+str(m)
    d[key]=L

print("The dictionary is:")
print(json.dumps(d,indent=4))

print("The maximum value of each key is")
for i in d:
    print(f"Maximum value in {i} key is {max(d[i])}")
Output:
PS E:\class11\dictionary_APC> py .\03_max.py
Enter the numbers for 1 key-value pair
Enter a number:5
Do you to continue: Y/N 
Enter a number:7
Do you to continue: Y/N
Enter a number:9
Do you to continue: Y/N
Enter a number:2
Do you to continue: Y/N
Enter a number:3
Do you to continue: Y/Nn
Enter the numbers for 2 key-value pair
Enter a number:19
Do you to continue: Y/N  
Enter a number:15
Do you to continue: Y/N
Enter a number:12
Do you to continue: Y/N
Enter a number:22
Do you to continue: Y/Nn
Enter the numbers for 3 key-value pair
Enter a number:14
Do you to continue: Y/Nn
The dictionary is:
{
    "Key1": [
        5,
        7,
        9,
        2,
        3
    ],
    "Key2": [
        19,
        15,
        12,
        22
    ],
    "Key3": [
        14
    ]
}
The maximum value of each key is
Maximum value in Key1 key is 9
Maximum value in Key2 key is 22
Maximum value in Key3 key is 14
PS E:\class11\dictionary_APC>

Write a python code to create a dictionary containing some values as numbers by using suitable keys. Display all the values which are perfect numbers. [Hint: A number is said to be perfect, if the sum of the factors (including 1 and excluding the number itself) is equal to the same number)

import json
d={} #empty dictionary
n=int(input("Enter the number of pairs:"))
for i in range(n):
    m=i+1
    k = "key"+str(m)
    p = int(input("Enter a number:"))
    d[k]=p

print(f"Dictionary is \n {json.dumps(d,indent=4)}")

print("The perfect numbers are:")
for i in d:
    n=d[i] #number value
    s=0 #sum
    for k in range(1,n):
        if n%k==0:
            s=s+k #sum of each factor
    if s==n: #check if the sum is equal to the factor
        print(f"{n}")
Scroll to Top