BLS Institute of Management Interview Questions and Answers

Compute the maximum value of a given expression involving two arrays.

• Iterate through all possible pairs of indices i and j to calculate the expression value

• Keep track of the maximum value found so far

• Use absolute function to handle negative values appropriately

The goal is to fill a knapsack with exactly 'M' stones, one of each color, minimizing unused capacity.

• Iterate through stones, keeping track of weights for each color

• Sort stones by weight and color, then select one stone of each color

• Calculate total weight for selected stones and find minimum unused capacity

Given a string, find the longest palindromic substring within it, returning the one that starts with the smallest index if multiple substrings qualify.

• Iterate through the string and expand around each character to find palindromes

• Keep track of the longest palindrome found so far

• Return the longest palindromic substring that starts with the smallest index

Reverse a singly linked list by altering the links between nodes.

• Iterate through the linked list and reverse the links between nodes

• Keep track of previous, current, and next nodes while reversing

• Update the head of the linked list to the last node after reversing

The 0-1 Knapsack Problem involves maximizing the value of items in a knapsack while respecting weight constraints.

• Iterate through all possible combinations of items to find the optimal solution.

• Use dynamic programming to store and reuse subproblem solutions.

• Consider the weight limit and value of each item to make the best choice.

• Example: For input [1, 2, 3], [10, 15, 40], and weight limit 6, the maximum value is 55.