 This is a task list focused on Algorithm topics for OpenGenus IQ and Cosmos

See this guide to understand how to use this task list. Message @aditya if you need any help. You may work on uncompleted tasks, improve existing work and add questions for a completed task. See published posts here

Following is a small collection of scopes you may contribute to:

### Dynamic programming

• Calculate Binomial Coefficient (assigned to @piyush26c)
• Calculate Permutation Coefficient (assigned)
• Calculate nth Catalan Number
• Calculate Bell Numbers
• Calculate Fibonacci numbers (assigned to @Ishmeetk21)
• Print Fibonacci Series in reverse order (assigned to @prashant-raghu)
• Calculate ways elements can be paired (where element can stay single or be paired)
• Number of ways to form a heap with n distinct integers
• Subset with sum divisible by m (assigned to @siddharth )
• Number of subsets with sum divisible by m (assigned to @siddharth)
• Subset sum problem (assigned)
• Maximum Subarray Sum Excluding Certain Elements
• Print maximum number of A’s with N key press (print A, copy, select all, paste)
• Number of palindromic paths in a matrix
• Maximum profit by buying and selling a share at most k times
• Find Largest divisible pair subset (assigned)
• largest subset where sum of each pair is a prime
• largest subset where difference of each pair is 1 (absolute value)
• largest subset where sum of each pair is not divisible by K
• subset with sum closest to zero
• Find all subsets with given sum
• Assembly Line Scheduling (assigned to @Kiritsuge-Emiya)
• Newman Conway Sequence (assigned to @piyush26c)
• Count even length binary sequences with same sum of first and second half bits
• Count all subsequences having product less than K (assigned to @Ishmeetk21)
• Maximum sum of pairs with specific difference
• Maximum size square sub-matrix with all 1s
• Recursively break a number in 3 parts (n/2, n/3, n/4) to get maximum sum
• Maximum sum rectangle in a 2D matrix
• Largest rectangular sub matrix having sum divisible by k
• Largest rectangular sub matrix having sum equal to 0
• Largest rectangular sub matrix with equal number of 1’s and 0’s
• Longest Geometric Progression
• Given a string consisting of digits 0-9, count the number of subsequences in it divisible by m
• Count ways to increase LCS length of two strings by one
• Count arrays in which all adjacent elements are such that one of them divide the another
• Ways to add parenthesis for evaluation
• Check if a string is interleaved of two other strings
• Shortest possible combination of two strings
• Longest repeating and non overlapping substring
• Minimum number of elements which are not a part of increasing or decreasing subsequence in array
• Matrix Chain Multiplication Problem (assigned to @isha-gautam)
• Printing brackets in Matrix Chain Multiplication Problem
• Partition a set into two subsets such that the difference of subset sums is minimum
• partition a set into two subsets such that the sum of each subset is same (assigned to @Shruti)
• Number of ordered pairs such that (A[i] & A[j]) = 0 (assigned to @Shruti)
• Wildcard Pattern Matching (given a string and wildcard pattern) (assigned to @shaljais01)
• Find number of times a string occurs as a subsequence in given string (assigned to @epicalyx)
• Word Wrap Problem
• Palindrome Partitioning
• Boolean Parenthesization Problem (assigned to @phm_123)
• Longest repeated subsequence (assigned to @Vaibhav)
• Maximum sum bitonic subsequence (done by @siddharth)
• Tile Stacking Problem (assigned to @saddhu1005)
• Ways to write n as sum of two or more positive integers (assigned to @sajal_tikariha)
• Longest Arithmetic Progression (assigned to @sajal_tikariha)
• Unbounded Knapsack Algorithm (assigned to @masters_abh)
• Coin change problem
• Assembly Line Scheduling (assigned to @karna98)
• Edit distance problem (assigned to @rajashree23)
• Cutting a Rod to maximize profit (1D -DP) (assigned to @startech)
• number of paths with k edges in a graph (dynamic programming + divide conquer) (assigned to @saddhu1005)
• vertex cover problem (assigned to @saddhu1005)
• word break problem (assigned to @saddhu1005)
• finding minimum cost polygon triangulation (assigned to @phm_123)
• finding the largest independent set in a binary tree (assigned to @phm_123)

### Greedy algorithms

• Smallest number with sum of digits as N and divisible by 10^N (assigned)
• Find Smallest number with given number of digits and digits sum (assigned to @abdulwael)
• Rearrange string such that no two adjacent are same
• Rearrange string such that all same characters become d distance away
• Smallest subset with sum greater than all other elements
• Huffman coding
• Huffman decoding
• Minimum product subset in an array (assigned to @r0uxt1)
• Maximum product subset in an array (assigned to @r0uxt1)
• Divide 1 to n into two groups with minimum sum difference (assigned to @r0uxt1)
• Split n into maximum composite numbers (assigned)
• Maximize the sum of arr[i]*i (assigned to @aryabharat)
• Minimum sum of products of two array (assigned to @aryabharat)
• Largest lexicographic array with atmost K consecutive swaps (assigned to @r0uxt1)
• Activity Selection problem (assigned to @shreya-singh)
• Job sequencing problem (assigned to @aryabharat)
• Fractional Knapsack Problem (assigned to @shreya-singh)
• Huffman Coding (assigned to @dldisha)
• Minimum swaps for bracket balancing (assigned to @Vaibhav)
• Find the minimum number of platforms needed in the station to avoid any delay in arrival of any train (assigned to @Vaibhav)
• smallest subset with sum greater than all other elements (assigned to @aryabharat)

### Others

• check armstrong number
• Square root Decomposition
• Booth’s algorithm for lexicographically minimal string rotation
• Euclidean GCD algorithm (assigned to @arunesh)
• Minimum insertion to make shortest palindrome (@mishramonalisha76)
• Multiple array range increments in linear time (assigned to @r0uxt1)
• Binary Lifting and LCA (assigned to @arshad2117)
• Heap’s algorithm for generating permutations (assigned to @piyush26c)
• Z-algorithm (assigned to @shubhammantri1)
• word break Problem using backtracking and Trie (assigned to @saddhu1005)
• maximum sub-array sum using divide and conquer (assigned to @akshay_103)
• Smallest common supersequence (assigned to @saddhu1005)
• Complexity Notation and Analysis of Algorithms (assigned to @rajvijen)
• Master theorem (assigned to @rajvijen)

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assign me topological sort

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Hey @aditya could you let me know how can I assign myself? Thank you 1 Like

I want to write code for circle sort in c++. Please assign it to me.

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If you want to work on a particular task, you need to get the invite for OpenGenus IQ and then, comment your interest as others. We will assign it to you
You can directly message me for guidance as well Hey can you please assign me the Fibonacci search.
Thank You

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assign me Hamiltonian cycle

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Unbounded Knapsack Algorithm

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Hi I am @Spider8801 assign me Krushkal’s Algorithm

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Hey, assign me tarjan algorithm

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assign me Cycle Sort !! please !!

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Assign me Fuzzy Search

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I’d like to add a topic in Dynamic Programming:
Please assign me Coin Change problem.

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