Welcome everyone!🌟 Here you can solve problems, build scrappers and much more💻
Home Page: https://github.com/pratik-choudhari/AlgoCode
License: MIT License
I’m Pratik Choudhari, a backend developer, data engineer and a masters student @Uwindsor, CA. I am interested in everything data and system design.
🖋️ Blogs: Medium Python Engineer
💻 Hackerrank: https://www.hackerrank.com/profile/pratik_choudhari
Languages
Deployment
Database
Python tools/libraries
I would like to add my project of weather App.
Currently it looks like this :-
After adding this project i will work on it and improve it's UI and features.
Stack that i used to make this project :-
It is a good beginners project in Web Development.
The task here is to scrape dictionary.com for words and their meanings and store the scraped data into a json file.
Must be able to run the script and json file should get generated.
Hint: In python use tqdm for updating progress
Mention programming language while requesting assignment
Identify valid IP address using the power of regex.
IP address is a string in the form "A.B.C.D", where the value of A, B, C, and D may range from 0 to 255. Leading zeros are allowed. The length of A, B, C, or D can't be greater than 3.
First line is number of test cases.
Input:
6
000.12.12.034
121.234.12.12
23.45.12.56
00.12.123.123123.123
122.23
Hello.IP
Output:
true
true
true
false
false
false
Contributors are supposed to mention their coding language while asking for assignment
Find if entered credit card number is valid number.
Conditions for a valid credit card number:
► It must start with a 4, 5 or 6.
► It must contain exactly 16 digits.
► It must only consist of digits (0-9).
► It may have digits in groups of 4, separated by one hyphen "-".
► It must NOT use any other separator like ' ' , '_', etc.
► It must NOT have 4 or more consecutive repeated digits.
Input: 4253625879615786
Output: Yes
Input: 5122-2368-7954-3214
Output: Yes
Input: 42536258796157867
Output: No
Input: 44244x4424442444
Output: No
Contributors are supposed to mention their coding language while asking for assignment
Build a script to scrape Codeforces problem statements, as per the problem code provided by the user.
Save the result in a text file.
Searching Algorithms:
The task is to sort n numbers in ascending format based on following conditions:
Input: 9 7 1 12 8
Output: YES
Input: 2 1
Output: NO
Create a program to calculate Internet speed.
Output Upload and Download speeds
Mention language when requesting assignment
The task is to implement:
First input will be name of algorithm followed by list of integers in next line.
Input: Selection
1 8 3 9 33 02 0 93 64 22 1 35
Output: sorted list of input
You are encourage not to copy code from online sources just for the name of open source contribution
Mention language in comments
Python sudoku solver
A python program to solve a Sudoku board provided by the user as input. If the board is valid it solves the board and displays the final solution, else it raises an error message that the input was invalid.
Input :-
Note :- The 0 s here refer to the empty cells in the board
Output :-
Note :- The empty cells have been filled up with the correct digits, indicated in red
A program to perform following operations on an input image:
The program must be menu driven at least. GUI or a Web interface would be excellent👏
This contribution will go under Projects folder.
Contributors are supposed to mention their coding language while asking for assignment
The problem is to find the least positive multiple of input number n. The multiple must only be made up of 9's and 0's, no other digit is allowed.
First line is number of test cases.
Input:
2
3
7
Output:
90
9009
Challenge here is to figure out a way efficient than a brute force approach, dividing every number by n
Contributors are supposed to mention their coding language while asking for assignment
#Feature ✅
Write a code to reverse the array by D elements clockwise.
Input: Array - 1 2 3
D = 1
Output: 2 3 1
Input: Array - 5 8 9 4 2
D = 3
Output: 4 2 5 8 9
Contributors are supposed to mention their coding language while asking for assignment
Knapsack problem (Select items such that the value is maximum but the Weight is within W)
Input:
3 8
3 30
4 50
5 60
Output:
90
Write a program which can evaluate mathematical expressions in infix format.
Input: 2 + 3 * ( 4 - 2 )
Output: 8
Note: Use stack
Mention programming language while requesting assignment
Find all perfect number less than n
a perfect number is a positive integer that is equal to the sum of its positive divisors, excluding the number itself. For instance, 6 has divisors 1, 2 and 3 (excluding itself), and 1 + 2 + 3 = 6, so 6 is a perfect number.
Input: 500
Output: 6 28 496
Note: perfect numbers value escalate quickly, checkout the list here
Inclusion of searching tree algorithms in the C/C++ codes.
The search tree methods include Binary Search Tree, AVL Tree, Tries, B Trees, OS Trees, Interval Trees.
Since the day this repository is up, 80% of the questions have been put up by me.
It gets difficult for a maintainer to manage the PRs, solve github doubts and do daily chores. So I request you to contribute not only the solutions but also the questions.
The type of questions being asked can be seen in the issues, feel free to experiment. Appreciate everyone who helps, thanks✌
A program to perform the following with two complex numbers A, B:
First input will be 1st number with real and imaginary part similarly second number.
Input:
2 1
5 6
Output:
7.00+7.00i
-3.00-5.00i
4.00+17.00i
0.26-0.11i
2.24+0.00i
7.81+0.00i
You are encourage not to copy code from online sources just for the name of open source contribution
Mention language in comments
I wish to add a seperate file for each sorting method
This includes Bubble Sort, Selection Sort, Insertion Sort, Shell Sort, Merge Sort
Contributors are supposed to mention their coding language while asking for assignment
Given an array of numbers, you have to print the prefix and suffix sums of the array.
Input -
6
1 2 3 4 5 6
Output -
Prefix - 1 3 6 10 15 21
Suffix - 21 20 18 15 11 6
Mention language while requesting for assignment
Given a set of tagged strings, output the tag contents.
First line signifies number of input lines
Input: 4
<h1>This is a heading</h1>
<This_tag_doesnot_exist>Hello</This_tag_doesnot_exist>
<apple>Technology is growing</apple>
<user>Archit</user>
Output:
This is a heading
Hello
Technology is growing
Archit
Contributors are supposed to mention their coding language while asking for assignment
#Feature ✅
Code for LCS of 2 strings missing
Input:
s = "axa"
t = "aa"
Output:
aa
Build a to-do app with a web interface in either Js or python
User must be able to add tasks in the web interface and If a task is done mark it as done(dim the text or strike the text)
For this task it is mandatory to add the screenshot of resultant website with all possible cases inside README file.
Contributors are supposed to mention their coding language while asking for assignment
The task is to implement:
First input will be name of algorithm followed by list of integers in next line.
Input: Shell
1 8 3 9 33 02 0 93 64 22 1 35
Output: sorted list of input
You are encourage not to copy code from online sources just for the name of open source contribution
Mention language in comments
Print the matrix input in a spiral format
Input:
1 2 3 4
5 6 7 8
9 10 11 12
13 14 15 16
Output:
1 2 3 4 8 12 16 15 14 13 9 5 6 7 11 10
Mention language while requesting for assignment
Calculate measures of dispersion for given distribution.
Measures of dispersion:
Input: 238,139,171,234,171,152,170,233,105,260
Output(2 decimal precision):
Range: 155
Variance: 2330.81
Standard deviation: 48.27
Mention language in comment
For a given number n find all armstrong numbers less than n
An Armstrong number is the one whose sum of mth power of every digit in the number is equal to number itself, where m is the length of number
for 371: 33 + 77 + 13 = 371
Input: 1000
Output: 1, 2, 3, 4, 5, 6, 7, 8, 9, 370, 371, 407
Mention language while requesting assignment
Find the sum of all numbers in a sequence, where nth term is defined as:
Tn = n2 - (n - 1)2
First line defines number of terms in sequence.
Output the sequence and sum.
Input: 3
Output:
Sequence: 1 3 5
Sum: 9
Contributors are supposed to mention their coding language while asking for assignment
The script should scrape all the events from the Hacktoberfest event's website and stores them in a .CSV file.
LINK
Create a calculator that takes input from command line and outputs in the same window
Input: 1
+
2
Output: 3
Note: This Calculator is a basic one, add your own new ideas such as trignometric functions, sqrt, log, square, exponents, etc. Or make it into a GUI!
Mention programming language while requesting assignment
Input: 011101
Output: 1
Input: 100101000
Output:3
In sample 2, If 101010.. template is followed 6 changes are needed but for 0101.. only 3 changes are required.
Mention programming language while requesting assignment
Find the only word that appeared single time in the input
Input: red
animal
bird
animal
bird
Output: red
Hint: Make use of bit-wise operation
Mention programming language while requesting assignment
Write a program to calculate minimum number of swaps required to make a string palindrome.
Input: niitn
Output: 1
Input: deideif
Output: 2
Explanation: swap 1->(d,f), swap 2-> (e, i)
Mention programming language while requesting assignment
Given 2 numbers N and K and considering you have numbers ranging from 1 to N, print all the subsets of size K.
Input -
5 3
Output -
1 2 3
1 2 4
1 2 5
1 3 4
1 3 5
1 4 5
2 3 4
2 3 5
2 4 5
3 4 5
Mention language while requesting for assignment
Calculate factorial of a large number such as 100 or 200
Input: 100
Output : 933262154439441526816992388562667004-
907159682643816214685929638952175999-
932299156089414639761565182862536979-
208272237582511852109168640000000000-
00000000000000
⚠Note: The program must not use the normal logic of n! = n*(n-1)*...
You are given an undirected unweighted graph in the form of an adjacency list (Resource on adjacency list). Given a starting and ending node number you have to output the number of nodes in the shortest path between the starting and ending node(excluding starting and ending nodes). Refer to examples for better understanding.
Input format -
N M
u1 v1
u2 v2
...
uM vM
A B
Here, N is the number of nodes and M is the number of edges. M lines follow where the ui vi represents and edge between node ui and vi. A and B are the starting and ending node respectively. Nodes are numbered from 1 to N.
Input -
4 4
1 2
2 3
2 4
3 4
1 4
Output -
1
Explanation -
The shortest path between 1 and 4 is 1 --> 2 --> 4. Thus there is just 1 node between A and B.
Creating a sorting folder in Java to include sorting algorithms.
Build a script to scrape Codechef problem statements, as per the problem code provided by the user.
Scrape the following:
Problem Name, Problem Code, Problem statement, Input, Output, Sample Testcase, Note (usually there, after sample test case)
Save the result in a text file.
Thank you for coming here and your contribution❤
If you are new here then you must go checkout:
In case of any recommendations create an issue and it will be answered soon!
Given a n-ary tree, find its maximum depth.
The maximum depth is the number of nodes along the longest path from the root node down to the farthest leaf node.
Nary-Tree input serialization is represented in their level order traversal, each group of children is separated by the null value.
Example 1:
Input: root = [1,null,3,2,4,null,5,6]
Output: 3
The script should show the top 10/20 google search results.
Identify floating point numbers.
Input: +4.00
Output: Yes
Input: +-5.00
Output: No
Input: -.7
Output: Yes
Input: 12.
Output: No
Input: 12.o0
Output: No
Contributors are supposed to mention their coding language while asking for assignment
Input: 4 2 1 10 6
Output: 5
Sum of original array = 4+2+1+10+6 = 23
Sum of modified array = 5+5+5+5+5 = 25
Mention programming language while requesting assignment
For a given set of numbers calculate the Mean, Median and Mode
Input: 8 9 4 6 7 25 44 6 8 15
Output: Mean: 13.2
Median: 8
Mode: 8, 6
Note: Look out for length of input it affects calculation of median and don't forget to sort the input!
Mention your language in comment
Print all primes less than or equal to a given number
Input: 27
Output: 2 3 5 7 11 13 17 19 23
Hint: Look up for Sieve of Eratosthenes
Scrape the S&P 500 Companies list from Wikipedia, Yahoo Finance, etc., then output the data.
Get stock prices.
HINT: yfinance, nsepy libraries in Python.
Given mth and nth term of an AP, find the pth term
Format: m n mthterm nthterm p
Input: 6 10 12 20 5
Output: 10
Mention programming language while requesting assignment
A word is an anagram of another if they have same characters but in a different order.
Input: listen silent
Output: Yes
Input: abcd abcdd
Output: No
If second word is an anagram check if it is a valid English word
React
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Typescript
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Django
The Web framework for perfectionists with deadlines.
Laravel
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
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Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
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Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft
Open source projects and samples from Microsoft.
Google
Google ❤️ Open Source for everyone.
Alibaba
Alibaba Open Source for everyone
D3
Data-Driven Documents codes.
Tencent
China tencent open source team.