Gemini Solutions Interview Questions and Answers

String problems in DSA involve manipulation, searching, and pattern matching techniques for efficient data handling.

• 1. String Reversal: Reverse a string using two-pointer technique. Example: 'hello' -> 'olleh'.

• 2. Palindrome Check: Check if a string reads the same forwards and backwards. Example: 'madam' is a palindrome.

• 3. Anagram Detection: Determine if two strings are anagrams. Example: 'listen' and 'silent' a...read more

Understanding a coding question involves analyzing the problem, identifying the requirements, and devising a solution using programming concepts.

• Read the problem statement carefully to understand the input, output, and constraints.

• Identify the key requirements and constraints of the problem.

• Break down the problem into smaller subproblems if necessary.

• Choose appropriate data structures and algorithms to solve the p...read more

The code contains syntax errors and logical flaws that need to be identified and corrected.

• Check for missing semicolons or brackets. Example: 'if (condition' should be 'if (condition) {'

• Look for incorrect variable types. Example: 'int x = 'hello';' should be 'String x = 'hello';'

• Identify any uninitialized variables. Example: 'int y;' should be initialized before use.

• Ensure proper function return types. Example: 'v...read more

Reverse a linked list

• Iterate through the linked list and change the direction of the pointers

• Use three pointers to keep track of the current, previous and next nodes

• Handle the edge cases of empty list and single node list

Hashmap is a data structure that stores key-value pairs and provides constant time complexity for insertion, deletion and retrieval.

• Hashmap uses hashing function to map keys to their corresponding values in an array

• Collisions can occur when two keys map to the same index, which can be resolved using techniques like chaining or open addressing

• Hashmap has O(1) time complexity for insertion, deletion and retrieval op...read more

CNN stands for Convolutional Neural Network, a type of deep learning algorithm commonly used for image recognition.

• CNNs are designed to automatically and adaptively learn spatial hierarchies of features from data.

• They consist of multiple layers of neurons that process portions of the input image, learning to recognize patterns.

• CNNs use convolutional layers, pooling layers, and fully connected layers to extract fea...read more

A linked list is a linear data structure where elements are stored in nodes, each pointing to the next node.

• Consists of nodes, each containing data and a pointer to the next node.

• Types include singly linked lists, doubly linked lists, and circular linked lists.

• Example of singly linked list: 1 -> 2 -> 3 -> NULL.

• Doubly linked list allows traversal in both directions: NULL <- 1 <-> 2 <-> 3 -&g...read more