LimeRoad Interview Questions and Answers

The Word Ladder problem involves finding the shortest transformation sequence from one word to another by changing one letter at a time.

• Use breadth-first search to find the shortest transformation sequence.

• Create a graph where each word is a node and words that can be transformed into each other are connected.

• Keep track of visited words to avoid cycles and optimize the search process.

• Return -1 if no transformation sequence is possible.

• Example: For input 'hit', 'cog', and dict...read more

Determine the maximum profit that can be achieved by selling stocks with at most two transactions.

• Iterate through the array and calculate the maximum profit that can be achieved by selling stocks at each day.

• Keep track of the maximum profit after the first transaction and the maximum profit after the second transaction.

• Return the maximum profit that can be achieved overall.

Group anagrams in an array of strings based on their characters.

• Iterate through each string in the input array

• Sort the characters of each string and use the sorted string as a key in a hashmap to group anagrams

• Return the values of the hashmap as the grouped anagrams

Determine the minimum length of instruction sequence for a robot to reach a given target on an infinite number line.

• Start at position 0 with speed +1, update position and speed based on 'A' and 'R' instructions

• For each test case, find the shortest sequence of instructions to reach the target

• Consider both positive and negative positions for the robot

• Return the minimum length of instruction sequence for each test case

The task is to determine if a given string of parentheses is balanced or not.

• Iterate through each character in the string and use a stack to keep track of opening parentheses

• If a closing parenthesis is encountered, check if it matches the top of the stack. If not, the string is not balanced

• If all parentheses are matched correctly and the stack is empty at the end, the string is balanced

The garment tax report needs to be checked.

• Review the garment tax report for accuracy and completeness.

• Ensure that all tax calculations are correct.

• Verify that the report includes all necessary information, such as tax rates and applicable exemptions.

• Cross-check the report with relevant documentation, such as invoices and receipts.

• Identify any discrepancies or errors and take appropriate actions to rectify them.