What are some common collision resolution techniques used in hash tables?
- Binary search, Hashing, Graph traversal, Divide and conquer
- Breadth-first search, Depth-first search, Dijkstra's algorithm, Bellman-Ford algorithm
- Bubble sort, Merge sort, Quick sort, Radix sort
- Linear probing, Quadratic probing, Separate chaining, Double hashing
Common collision resolution techniques include linear probing, quadratic probing, separate chaining, and double hashing. These methods address the issue of two keys hashing to the same index in the hash table.
The longest common substring problem aims to find the _______ string that appears in two or more given strings.
- Common
- Longest
- Shortest
- Unique
The longest common substring problem aims to find the common string that appears in two or more given strings. It involves identifying the substring that is present in all given strings and has the maximum length.
Topological sorting is essential in optimizing _______ schedules, ensuring that tasks are executed in the correct order.
- Algorithm
- Dependency
- Execution
- Job
Topological sorting is essential in optimizing job schedules, ensuring that tasks are executed in the correct order based on dependencies. It is commonly used in project management and task scheduling.
Compared to arrays, linked lists have _______ access time but _______ memory overhead.
- Constant, Constant
- Constant, Linear
- Linear, Constant
- Linear, Linear
Compared to arrays, linked lists have constant access time but linear memory overhead. Linked lists provide constant time for insertion and deletion at any position, but they require additional memory for storing the next pointer in each node.
An optimization technique for Edit Distance involves using _______ to prune unnecessary calculations.
- Binary Search
- Divide and Conquer
- Dynamic Programming
- Greedy Algorithms
An optimization technique for Edit Distance involves using dynamic programming to prune unnecessary calculations. Dynamic programming stores the results of subproblems, eliminating redundant computations and significantly improving efficiency.
Consider a scenario where you need to sort a linked list. Discuss the suitability of Insertion Sort for this task compared to other sorting algorithms.
- Better suited for linked lists
- Depends on the size of the linked list
- Equally suitable for linked lists
- Not suitable for linked lists
Insertion Sort is better suited for linked lists compared to other sorting algorithms. Unlike array-based algorithms, Insertion Sort works well on linked lists as it can efficiently insert elements in their correct positions without the need for extra space. Other algorithms like Quick Sort or Merge Sort may face challenges with linked lists due to their structure.
In BFS, which vertices are visited first: neighbors or children of the current vertex?
- Both are visited simultaneously
- Children
- Neighbors
- Neither is visited
In BFS, the neighbors of the current vertex are visited first. It explores all the vertices at the same level before moving on to the vertices at the next level, ensuring a breadth-first exploration.
The Knapsack Problem involves selecting a subset of items to maximize the _______ while ensuring that the total _______ of selected items does not exceed a given limit.
- Profit, Weight
- Weight, Profit
- Value, Size
- Size, Value
In the Knapsack Problem, the goal is to maximize the profit while ensuring that the total weight of selected items does not exceed a given limit. Therefore, the correct options are Profit for the first blank and Weight for the second blank.
Dynamic programming optimizes the time complexity of finding the Longest Palindromic Substring from _______ to _______.
- O(n log n), O(n)
- O(n), O(n^2)
- O(n^2), O(n log n)
- O(n^2), O(n^2)
Dynamic programming optimizes the time complexity of finding the Longest Palindromic Substring from O(n^2) to O(n), making the algorithm more efficient by using the results of smaller subproblems to build up to the final solution.
How can you optimize bubble sort to reduce its time complexity?
- Implement bubble sort recursively
- Increase the number of passes through the array
- Use a larger data type for array elements
- Use an optimized version with a flag to check if any swaps occurred in a pass
To optimize bubble sort and reduce its time complexity, you can use an optimized version that includes a flag to check if any swaps occurred in a pass. If no swaps occur, the array is already sorted, and the algorithm can terminate early, improving its efficiency.