Write program to generate the following NUMBER / STAR arrangements
PYTHON ASSIGNMENT 10 - LIST COMPREHENSION
Write
a list comprehension that prints a list of the cubes of the numbers 1 through
10.
Write
a list comprehension that prints out the possible results of two coin flips (example
- one result would be ’ht’)
Write
a function that takes in a string and uses a list comprehension to return all
the vowels in the string.
Run
this list comprehension in your prompt:
[x+y
for x in [10, 20, 30] for y in [1, 2, 3]]
Write
a function that takes in a list of elements of different types and uses a list
comprehension to return all the elements of the list of type int. (Note: Use the
python isinstance function)
Write
a list comprehension which solves the equation y = x2+1. The solution should
print out a list of [x, y] pairs; use the domain x ∈ [−5, 5] and the range y ∈
[0, 10].
Write
a list comprehension that finds the integer solutions [x, y] for a circle of
radius 5.
PYTHON - EXTRA ASSIGNMENT PROGRAMS
Control Structure
Check
if a given number is divisible by 5
Sum
of N different numbers
Sum
and average of N different numbers
Sum
of numbers between 1 and 50 which are divisible by 3 and not by 5
First
N even numbers
First
N numbers divisible by 4
Functions
Area
and circumference of a circle
Simple
and Compound Interest
Smallest
and largest digit in a number
Sum
of digits of a number until single number is obtained
Sum
of even and odd digits of a number
Sum
of squares of individual digits of a number
Sum
of cubes of individual digits of a number
Digits
in odd position of a number
Digits
in even position of a number
Factorial
of first N numbers
Read
a name and display a welcome message
Menu
driven Calculator program
Lists
Create
a list and perform the following operations on the list
Display
content of list
Display
length of list
Display
element in given position in the list
Add
elements to the list
Remove
elements from the list:
Slice
Sort
Reverse
Replace
elements
Join
two lists
Membership
test
Nested
lists
Lists and Functions
Smallest
number from a set of numbers
Largest
number from a set of numbers
Sum
of even and odd numbers from a set of numbers
Sort
the elements of a matrix
Read
an N x N matrix. Check if the last element of each row is the sum of the all
other elements in that row
String
Two
words form a metathesis pair, if you can transform one into the other by
swapping two letters. Example – conserve and converse. Write a program to find
all the metathesis pair in a dictionary.
Read
a word and check if all the letters are in alphabetical order
Two
words are anagrams if you can rearrange the letters from one to spell the
other. Write a program that displays all lists of anagrams from the word list. Example:
[‘silent’,
‘listen’]
[‘deltas’,’desalt’,’lasted’,’salted’,’slated’,’staled’]
Two
words are reverse pair, if each is the reverse of the other. Example: was and
saw. Write a program that finds all the reverse pairs in the word list.
Two
words “interlock” if taking alternate letters from each forms a new word.
Example, “shoe” and “cold” interlock to form “schooled”. Write a program that
finds all pairs of words that interlock.
Dictionary
Creating
a Dictionary and perform the following operations:
Get
the values in a Dictionary
Looping
over dictionary
Add
elements to a dictionary
combine
two dictionaries
Delete
elements of a dictionary
Test
the presence of a key
Write
a program to generate a dictionary containing the list of customers and their
telephone numbers. Write functions to find the telephone number of a given
customer and to find the customer details if the telephone number is specified.
Files
Read
a file and display all words containing all 5 vowels atleast once. Example –
automobile
Write
a program called cross reference that creates a dictionary of all words in a
document, and for each word, a list of the line numbers on which it occurs.
Remove noise words like “the”, “and”, and so on.
Write
a program to compare two files, printing the first line where they differ.
Write
a program that displays the three most frequently occurring words in a file.
Write
a program that displays five most frequently occurring characters in a file.
Given
a file containing customer names and their phone numbers, write a program to
find the telephone number of a given customer.
Write
a program to read student details (Name, roll number and CGPA) and write to
file. Also display the file content.
PYTHON ASSIGNMENT 9: FILES
Read from console and write to file
Read from file and display in console
Display file content with line number
Display first N lines of a file
Display nth line of a file
Display from nth line to mth line of a file
Copy file
Copy first N lines from a file to new file
Copy from nth line to mth line of a file to new file
Merge two files
Count number of characters, words and lines in a file
Search if a word exists in a file.
Count number of times a word exists in a file
Search if a word exists in a file. Display all lines in which the word
exists.
Delete a word in a file
Replace a word in a file
Write a program that creates a dictionary of the frequency of all words in
a file. Remove noise words like “the”, “and”, and so on. Display the three most
frequently occurring words.
Write a program that creates a dictionary of the frequency of all the
characters in a file. Display five most frequently occurring characters.
Given a file containing customer names and their phone numbers, write a
program to find the telephone number of a given customer.
Compare two files and print the first line where they differ.
PYTHON ASSIGNMENT 8: FUNCTIONS
Check if a given number is even or odd
Find sum of two numbers
Swap two numbers
Biggest of three numbers
Find GCD of two numbers
Find distance between two points
Find square root of a number using Newton’s method
Check if a given number is an Armstrong number
Check if a given number is a prime number
Number manipulation
Number of digits
Sum of digits
Reverse of a number
Factorial of a number using (1) iteration and (2) recursion
Fibonacci series up to (1) a given limit and (2) number of terms
List
Sum of elements
Average of all numbers
Biggest element
Smallest element
Read two lists and merge without duplicates
Matrix Manipulation
Addition
Subtraction
Multiplication
Sum of diagonal element
Transpose of a matrix
PYTHON ASSIGNMENT 7: MISCELLANEOUS PROGRAMS
Operators and Control Structures
Swap two numbers
Circulate the values of n variables
Find GCD of two numbers
Distance between two points
Square root of a number using Newton’s method
Exponentiation of a number
First N prime numbers
List
Maximum in a given list of numbers
Sum of elements in a list
Matrix multiplication
Search
Linear search
Binary search
Sort
Insertion sort
Selection sort
Merge sort
Dictionaries : Histograms
Read a string and find the 5 most frequent characters
Read a string and find the 3 most frequent words
File operations:
File copy
Merge two files
Read a file name from command line and count the number of lines, words and characters in the file.
Read a file and create a dictionary for the frequency of words in the file
Read a file and create a dictionary for the frequency of characters in the file.
PYTHON ASSIGNMENT 6: DICTIONARIES
Write a program to generate a dictionary called phonebook containing the list of customers and their telephone numbers.
Lookup: Read a customer name and print the associated entry from the phonebook on a new line in the form name=phonenumber; If an entry for name is not found, print “Not found" instead.
Reverse Lookup: Given a phone number find the customer details. If number is not present, print “No match found”
Create a dictionary containing employee name and id (name:id). Display
Employee names, sorted in alphabetical order
Employee name and id, sorted alphabetically by name
Inverse the dictionary (id : name)
Consider two lists
NAMES = [’Alice’, ’Bob’, ’Cathy’, ’Dan’, ’Ed’, ’Frank’, ’Gary’, ’Helen’, ’Irene’, ’Jack’, ’Kelly’, ’Larry’]
AGES = [20, 21, 18, 18, 19, 20, 20, 19, 19, 19, 22, 19]
These lists match up, so Alice’s age is 20, Bob’s age is 21, and so on. Write a program that
Combines these lists into a dictionary.
Reads a name and returns the age.
Reads an age and returns the names of all the people who are that age.
Histogram: Read a string and create a dictionary containing the frequency of the characters in string.
Histogram: Read a string and create a dictionary containing the frequency of the words in string.
PYTHON ASSIGNMENT 5: LISTS
Write a program to read a set of numbers from a user and store in a list. Eliminate duplicate elements.
Given a list of N numbers, read the element to search in the list. Display the number of occurrences of the element with its position.
Anagrams. Given a list of words display the sets of anagrams.
Given a list of integers, create a new list with cumulative sum; that is a new list where the ith element is the sum of the first i elements from the original list. For example, the cumulative sum of [4, 3, 6] is [4, 7, 13].
Create a nested list containing student details (Roll number, name and 3 marks). Print the roll number, name, total and average marks of each student.
Given two lists that are sorted in ascending order, write a program to merge the lists into a single list that contains every item from both lists in sorted order.
Matrix
Addition, subtraction and multiplication of matrices.
Transpose of a matrix.
Sum of diagonal elements of a matrix.
Largest, smallest element in matrix.
PYTHON ASSIGNMENT 3 - TUPLES
Write a program to generate the Fibonacci series up to N terms. Store
the generated numbers in a tuple and display it.
Given a tuple containing city names, display the index, name and name
length, Write a program to read two tuples and merge them without duplicates
Write a program to display elements from the first tuple that are not
present in the second tuple
The second year of engineering offers the following subjects in two
departments.
CSE = (“PQT”, “OS”, “SE”, “DPSD”)
IT = (“OS”, “PQT”, “DS”, “SE”)
Find
Number of subjects in CSE
Names of subjects in CSE only
Names of subjects in IT only
Number and names of subjects in both CSE
and IT
Number and names of subjects for either CSE
or IT, but not in both
Number and names of all subjects.
Read 5 student information (roll number, name and CGPA).
Find
Student having the maximum CGPA
Names of students having CGPA more than 7.5
Average CGPA of the students
Sort and display name list
Rank list
Consider the price list of various items in a retail store. A customer
wants to know
Price of costliest item sold in the retail store
Display item and price list in increasing order of price
Display items in ascending order and the corresponding price
Average price of items in retail store
PYTHON ASSIGNMENT 2 - STRING
Read a string
Check
for empty string
Display
string length
Display
reverse of a string
Character
at a given position
Index
of a substring in a string
Copy
first n characters
Copy
last n character
Copy
n characters from mth position
Convert
all characters to uppercase
Convert
all characters to lower case
Replace
a character
Delete
a character
Count
number of vowels
Split
a string based on the spaces / delimiter
Write a program to read and join a list of
strings
Write a program to check if a given string
is a palindrome or not.
Write a program to count and display the
number of capital letters in a given string.
Write a program to count the number of
vowels in a string.
Write a program to display the number of
times each vowel occurs in a string. (ignore case)
Write a program to remove all punctuations
and special characters (~!@#$%^&*()_{}[]\:”;’<>?,./) in a given
string.
Write a program to read a string and count
and display the number of upper, lower, digit and special characters in a given
string.
Write a Python program to accept a string
and display the resultant string in a reverse order. The resultant string
should contain all characters at the even position of accepted string ignoring
blank spaces.
Example:
Given
string: An apple a day keeps the doctor away
Required
output: ywrtoetpeydepaA
Given a string containing both upper and
lower case letters, write a python program to count the number of repeated
characters and display the maximum count of a character along with the
character
Sample
input: ABaBCbGc
Output:
2A
3B
2C
1G
B
is repeated 3 times
Consider 2 strings string1 and string2 and
display the merged_string as output. The merged_string should be capital
letters from both the strings in the order they appear.
Sample
Input:
String1:
I Like Java
String2:
Mary Likes Python
merged_string:
ILJMLP
PYTHON ASSIGNMENT 1 - CONTROL STRUCTURES
If – elif – else structure
Check if given number is greater than 5
Check if given number is odd or even
Check if a given number is positive,
negative or zero
Check for leap year
Biggest / smallest of three numbers
Check if given number is a single, two,
three or four digit number.
Check if given character is vowel or not
Read a customer name, number of items
purchased and price of item. If gross amount is greater than 500, a discount of
10 % is applicable. Find the net amount to be paid by the customer.
While loop
Print numbers from 1 to 5
Read and display 5 numbers
Print numbers between two limits and type
(odd / even)
Read and display 5 numbers.
Find
Sum
of 5 numbers
Mean
of 5 numbers
Biggest
of 5 numbers
Smallest
of 5 numbers
Factorial of a given number
Fibonacci series
Number manipulation. Given a number
Find
Count
number of digits in a given number
Sum
of digits in a given number
Reverse
of the number
Armstrong number (Sum of cubes of
individual digits in a given number equal to original number)
Check if given number is a Prime number or
not
Display all the prime numbers between two
limits
For loop
Print numbers from 1 to 5
Read and display 5 numbers
Print numbers between two limits and type
(odd / even)
Read and display 5 numbers.
Find
Sum
of 5 numbers
Mean
of 5 numbers
Biggest
of 5 numbers
Smallest
of 5 numbers
Factorial of a given number
Fibonacci series
Number manipulation. Given a number
Find
Count
number of digits in a given number
Sum
of digits in a given number
Reverse
of the number
Armstrong number (Sum of cubes of
individual digits in a given number equal to original number)
Check if given number is a Prime number or
not
Display all the prime numbers between two
limits
Uploading documents to Blog
UPLOADING DOCUMENTS TO BLOG
UPLOADING WORD DOCUMENT
UPLOADING PDF DOCUMENT
UPLOADING EXCEL DOCUMENT
Sliding Window Protocol
Sliding window protocol
/*
Note:
The sender sends the packets and waits for
acknowledgement.
The receiver uses a random function to send
/ withhold acknowledgements when a packet is received.
When sender receives an acknowledgement, it
calculates the number of free slots in the sending window and transmits the next
frames.
The packet data is set to alphabets from ‘a’
to ‘e’ and program terminates after 15 frames are sent and acknowledged.
*/
// Sliding window protocol
// Sender.java
import java.io.*;
import java.net.*;
import java.util.*;
public class Slide_Sender
{
Socket
sender;
ObjectOutputStream
out;
ObjectInputStream
in;
String
pkt;
char
data='a';
int
SeqNum = 1, SWS = 5;
int
LAR = 0, LFS = 0;
int
NF;
Slide_Sender()
{
}
public
void SendFrames()
{
if((SeqNum<=15)&&(SWS
> (LFS - LAR)) )
{
try
{
NF
= SWS - (LFS - LAR);
for(int
i=0;i<NF;i++)
{
pkt
= String.valueOf(SeqNum);
pkt
= pkt.concat(" ");
pkt
= pkt.concat(String.valueOf(data));
out.writeObject(pkt);
LFS
= SeqNum;
System.out.println("Sent "
+ SeqNum + " " + data);
data++;
if(data=='f')
data='a';
SeqNum++;
out.flush();
}
}
catch(Exception
e)
{}
}
}
public
void run() throws IOException
{
sender
= new Socket("localhost",1500);
out
= new ObjectOutputStream(sender.getOutputStream());
in
= new ObjectInputStream(sender.getInputStream());
while(LAR<15)
{
try
{
SendFrames();
String
Ack = (String)in.readObject();
LAR
= Integer.parseInt(Ack);
System.out.println("ack
received : " + LAR);
}
catch(Exception
e)
{
}
}
in.close();
out.close();
sender.close();
System.out.println("\nConnection
Terminated.");
}
public
static void main(String as[]) throws IOException
{
Slide_Sender
s = new Slide_Sender();
s.run();
}
}
// Sliding window protocol
// Receiver.java
import java.io.*;
import java.net.*;
import java.util.*;
public class Slide_Receiver
{
ServerSocket
reciever;
Socket
conc = null;
ObjectOutputStream
out;
ObjectInputStream
in;
String
ack, pkt, data="";
int
delay ;
int
SeqNum = 0, RWS = 5;
int
LFR = 0;
int
LAF = LFR+RWS;
Random
rand = new Random();
Slide_Receiver()
{
}
public
void run() throws IOException, InterruptedException
{
reciever
= new ServerSocket(1500,10);
conc
= reciever.accept();
if(conc!=null)
System.out.println("Connection
established :");
out
= new ObjectOutputStream(conc.getOutputStream());
in
= new ObjectInputStream(conc.getInputStream());
while(LFR<15)
{
try
{
pkt
= (String)in.readObject();
String
[]str = pkt.split("\\s");
ack
= str[0];
data
= str[1];
LFR
= Integer.parseInt(ack);
if((SeqNum<=LFR)||(SeqNum>LAF))
{
System.out.println("\nMsg
received : "+data);
delay
= rand.nextInt(5);
if(delay<3
|| LFR==15)
{
out.writeObject(ack);
out.flush();
System.out.println("sending
ack " +ack);
SeqNum++;
}
else
System.out.println("Not
sending ack");
}
else
{
out.writeObject(LFR);
out.flush();
System.out.println("resending
ack " +LFR);
}
}
catch(Exception
e)
{
}
}
in.close();
out.close();
reciever.close();
System.out.println("\nConnection
Terminated.");
}
public
static void main(String args[]) throws IOException, InterruptedException
{
Slide_Receiver
R = new Slide_Receiver();
R.run();
}
}
Output:
Sender Window:
>javac Slide_Sender.java
>java Slide_Sender
Sent 1 a
Sent 2 b
Sent 3 c
Sent 4 d
Sent 5 e
ack received : 3
Sent 6 a
Sent 7 b
Sent 8 c
ack received : 5
Sent 9 d
Sent 10 e
ack received : 7
Sent 11 a
Sent 12 b
ack received : 8
Sent 13 c
ack received : 10
Sent 14 d
Sent 15 e
ack received : 11
ack received : 12
ack received : 15
Connection Terminated.
>
Receiver Window:
>javac Slide_Receiver.java
>java Slide_Receiver
Connection established :
Msg received : a
Not sending ack
Msg received : b
Not sending ack
Msg received : c
sending ack 3
Msg received : d
Not sending ack
Msg received : e
sending ack 5
Msg received : a
Not sending ack
Msg received : b
sending ack 7
Msg received : c
sending ack 8
Msg received : d
Not sending ack
Msg received : e
sending ack 10
Msg received : a
sending ack 11
Msg received : b
sending ack 12
Msg received : c
Not sending ack
Msg received : d
Not sending ack
Msg received : e
sending ack 15
Connection Terminated.
>
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