## Minimum cost to reach from the top-left to the bottom-right corner of a matrix

Given an N * M matrix mat[][] consisting of lower case characters, the task is to find the minimum cost to reach from the cell… Read More »

- Introduction to Data Structures | 10 most commonly used Data Structures
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- Convert Directed Graph into a Tree
- Widest Path Problem | Practical application of Dijkstra's Algorithm
- Implementing Generic Graph in Java
- Find if a degree sequence can form a simple graph | Havel-Hakimi Algorithm

Given an N * M matrix mat[][] consisting of lower case characters, the task is to find the minimum cost to reach from the cell… Read More »

Given a string S of length N consisting of lower case character, the task is to find the minimum cost to reach from index i… Read More »

A graph is a presentation of a set of entities where some pairs of entities are linked by a connection. Interconnected entities are represented by… Read More »

Given a graph with N nodes and M edges where each edge has a color (either black or green) and a cost associated with it.… Read More »

Given a connected, directional graph. Each node is connected to exactly two other nodes. There is weight associated with each edge denoting the cost to… Read More »

Given an unweighted directed graph and Q queries consisting of sequences of traversal between two nodes of the graph, the task is to find out… Read More »

Given an undirected graph with N vertices and N edges. No two edges connect the same pair of vertices. A triangle is a set of… Read More »

Given a connected acyclic graph with N nodes and N-1 edges, find out the pair of nodes that are at even distance from each other.… Read More »

Given N dependencies of the form X Y, where X & Y represents two different tasks. The dependency X Y denotes dependency of the form… Read More »

Given two integers N and K. The task is to find a connected graph with N vertices such that there are exactly K pairs (i,… Read More »

In graph theory, vertex colouring is a way of labelling each individual vertex such that no two adjacent vertex have same colour. But we need… Read More »

Given a dictionary, and two words start and target (both of the same length). Find length of the smallest chain from start to target if… Read More »

Given an undirected graph having N nodes, the task is to print the nodes having minimum and maximum degree. Examples: Input: 1—–2 | | 3—–4… Read More »

It is highly recommended to read Dijkstra’s algorithm using the Priority Queue first. Widest Path Problem is a problem of finding a path between two… Read More »

Given an array arr[] of size N. There is an edge from i to arr[i]. The task is to convert this directed graph into tree… Read More »