# Greedy Algorithms

### Recent Articles on Greedy Algorithms !

- Activity Selection Problem
- Egyptian Fraction
- Job Sequencing Problem
- Job Sequencing Problem (Using Disjoint Set)
- Job Sequencing Problem – Loss Minimization
- Job Selection Problem – Loss Minimization Strategy | Set 2
- Huffman Coding
- Efficient Huffman Coding for sorted input
- Huffman Decoding
- Water Connection Problem
- Policemen catch thieves
- Minimum Swaps for Bracket Balancing
- Fitting Shelves Problem
- Assign Mice to Holes

- Kruskal’s Minimum Spanning Tree
- Prim’s Minimum Spanning Tree
- Boruvka’s Minimum Spanning Tree
- Reverse delete algorithm for MST
- Problem Solving for Minimum Spanning Trees (Kruskal’s and Prim’s)
- Dijkastra’s Shortest Path Algorithm
- Dial’s Algorithm
- Dijkstra’s Algorithm for Adjacency List Representation
- Prim’s MST for adjacency list representation
- Correctness of Greedy Algorithms
- Minimum cost to connect all cities
- Max Flow Problem Introduction
- Number of single cycle components in an undirected graph

- Minimum product subset of an array
- Maximum product subset of an array
- Maximize array sum after k-negations | Set 1
- Maximize array sum after k-negations | Set 2
- Maximize the sum of arr[i]*i
- Maximum sum of increasing order elements from n arrays
- Maximum sum of absolute difference of an array
- Maximize sum of consecutive differences in a circular array
- Maximum height pyramid from the given array of objects
- Partition into two subarrays of lengths k and (N – k) such that the difference of sums is maximum
- Minimum sum of product of two arrays
- Minimum sum by choosing minimum of pairs from array
- Minimum sum of absolute difference of pairs of two arrays
- Minimum operations to make GCD of array a multiple of k
- Minimum sum of absolute difference of pairs of two arrays
- Minimum sum of two numbers formed from digits of an array
- Minimum increment/decrement to make array non-Increasing
- Making elements of two arrays same with minimum increment/decrement
- Minimize sum of product of two arrays with permutation allowed
- Sorting array with reverse around middle
- Sum of Areas of Rectangles possible for an array
- Array element moved by k using single moves
- Find if k bookings possible with given arrival and departure times
- Lexicographically smallest array after at-most K consecutive swaps
- Largest lexicographic array with at-most K consecutive swaps

**Greedy Algorithms in Operating Systems : **

**Approximate Greedy Algorithms for NP Complete Problems :**

**Greedy Algorithms for Special Cases of DP problems :**

- Split n into maximum composite numbers
- Maximum trains for which stoppage can be provided
- Buy Maximum Stocks if i stocks can be bought on i-th day
- Find the minimum and maximum amount to buy all N candies
- Maximum sum possible equal to sum of three stacks
- Maximum elements that can be made equal with k updates
- Divide cuboid into cubes such that sum of volumes is maximum
- Maximum number of customers that can be satisfied with given quantity
- Minimum Fibonacci terms with sum equal to K
- Divide 1 to n into two groups with minimum sum difference
- Minimize cash flow among friends
- Minimum rotations to unlock a circular lock
- Paper cut into minimum number of squares
- Minimum difference between groups of size two
- Minimum rooms for m events of n batches with given schedule
- Connect n ropes with minimum cost
- Minimum Cost to cut a board into squares
- Minimum cost to process m tasks where switching costs
- Minimum cost to make array size 1 by removing larger of pairs
- Minimum cost for acquiring all coins with k extra coins allowed with every coin
- Minimum time to finish all jobs with given constraints
- Minimum number of Platforms required for a railway/bus station
- Minimize the maximum difference between the heights of towers
- Minimum increment by k operations to make all elements equal
- Minimum edges to reverse to make path from a source to a destination
- Find minimum number of currency notes and values that sum to given amount
- Minimum initial vertices to traverse whole matrix with given conditions
- Find the Largest Cube formed by Deleting minimum Digits from a number
- Check if it is possible to survive on Island
- Largest palindromic number by permuting digits
- Smallest number with sum of digits as N and divisible by 10^N
- Find Smallest number with given number of digits and digits sum
- Rearrange characters in a string such that no two adjacent are same
- Rearrange a string so that all same characters become d distance away
- Print a closest string that does not contain adjacent duplicates
- Smallest subset with sum greater than all other elements
- Lexicographically largest subsequence such that every character occurs at least k times

- Top 20 Greedy Algorithms Interview Questions
- ‘Practice Problems’ on Greedy Algorithms
- Practice Questions on Huffman Encoding
- ‘Quiz’ on Greedy Algorithms

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