Internshala Web Developer Interview Questions and Answers

Q1. What is str in c
Ans. 
str in C is a data type used to represent strings as arrays of characters.
• str in C is typically declared as an array of characters, terminated by a null character '\0'.

• Functions like strcpy(), strcmp(), and strlen() are commonly used with str in C.

• Example: char str[10] = "hello"; // Declaration of a string in C
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Q2. What is pointers in c
Ans. 
Pointers in C are variables that store memory addresses of other variables.
• Pointers are used to access and manipulate memory directly.

• They are denoted by an asterisk (*) before the variable name.

• Example: int *ptr; // declares a pointer to an integer variable
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Round duration - 20 Minutes
Round difficulty - Easy

very easy questions related to web development. 1 coding question

Q1. 
Clone a Linked List with Random Pointers
Given a linked list where each node has two pointers: the first points to the next node in the list, and the second is a random pointer that can point to any node ...read more
Ans. 
Create a deep copy of a linked list with random pointers without using references of original nodes.
• Iterate through the original linked list and create a new node for each node in the list.

• Store the mapping of original nodes to new nodes in a hashmap to handle random pointers.

• Update the random pointers of new nodes based on the mapping stored in the hashmap.

• Return the head of the copied linked list.
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Round duration - 150 Minutes
Round difficulty - Medium

Q1. 
Loot Houses Problem Statement
A thief is planning to steal from several houses along a street. Each house has a certain amount of money stashed. However, the thief cannot loot two adjacent houses. Determi...read more
Ans. 
Determine the maximum amount of money a thief can steal from houses without looting two consecutive houses.
• Create an array 'dp' to store the maximum money that can be stolen from each house without looting two consecutive houses.

• Iterate through the houses and update 'dp' based on the maximum money that can be stolen from the current house.

• Return the maximum value in 'dp' as the answer.
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Q2. Can you design a website similar to Amazon?
Ans. 
Yes, I can design a website similar to Amazon by focusing on user-friendly interface, robust search functionality, secure payment options, and personalized recommendations.
• Focus on user-friendly interface with easy navigation

• Implement robust search functionality with filters and sorting options

• Provide secure payment options with encryption and fraud protection

• Include personalized recommendations based on user behavior ...read more
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Round duration - 10 Minutes
Round difficulty - Easy