Algorithm

Top 10 algorithms in Interview Questions

Graph

• Breadth First Search(BFS)
• Depth First Search(DFS)
• Shorest Path from source to all vertices(Dijkstra)
• All Pairs Shorest Path problem.(Floyd)
• To detect a cycle in a Graph(Union Find)

Sorting And Searching

• Quick Sort(Divide and Conquer)
• Bubble Sort
• Insert Sort
• Heap Sort(Binary Heap)
• Merge Sort(Divide and Conquer)
• Binary Search
• Search an element in a sorted and rotated array(O(logN),BinarySearch)

Tree / Binary Search Tree

• Find minimum depth of binary tree(Recursive)
• Maximum Path Sum in a Binary Tree(Recursive)
• Maximum Path Sum from Leaf to Root in Binary Tree(Recursive)