Cloud Analogy Software Developer Interview Questions and Answers for Freshers

Reverse a singly linked list of integers and return the head of the reversed linked list.

• Iterate through the linked list and reverse the pointers to point to the previous node.

• Keep track of the current, previous, and next nodes while reversing the linked list.

• Update the head of the reversed linked list as the last node encountered during reversal.

The task is to find the total number of subsequences in which all elements are equal in an integer array.

• Iterate through the array and count the frequency of each element.

• For each element, calculate the number of subsequences with all elements equal using the formula (frequency * (frequency - 1) / 2).

• Sum up the counts for all elements and return the result modulo 10^9 + 7.

Function to print star patterns based on the given number of rows 'N'.

• Iterate through each row from 1 to N

• For each row, print spaces (N-row) followed by stars (2*row-1)

• Repeat until all rows are printed

A program to find palindrome numbers in a given range.

• Iterate through the given range of numbers

• Convert each number to a string and check if it is equal to its reverse

• If yes, add it to the list of palindrome numbers

Carry is generated when the sum of two digits is greater than 9.

• Carry is a digit that is carried over to the next place value in the sum.

• For example, in the sum 56 + 78, the carry generated is 1 (5+7=12, carry 1, 6+8+1=15).

• Carry is important in addition of large numbers and in binary addition.

Campaigns, Promotions, and Coupons are marketing strategies used to attract customers and increase sales.

• Campaigns are strategic marketing efforts to promote a product or service over a specific period of time.

• Promotions are temporary incentives offered to customers to encourage purchases, such as discounts or free gifts.

• Coupons are vouchers that entitle the holder to a discount on a particular product or service.

• Examples: Black Friday campaign, Buy One Get One Free promotion...read more