Kotak Securities Interview Questions and Answers

The problem requires updating an array based on a series of queries, where each query can either insert a value or perform a bitwise XOR operation on all elements.

• Use a loop to iterate through each query and update the array accordingly

• For type 1 query, append the value to the end of the array

• For type 2 query, perform a bitwise XOR operation on each element of the array with the given value

• Return the updated array after processing all the queries

This question is about finding the position of the last person surviving in a circle of N people, where each person kills the Kth person in a clockwise direction.

• Implement a function that takes the number of test cases, N, and K as input

• For each test case, simulate the killing process by iterating through the circle and skipping K-1 people

• Keep track of the position of the last person surviving and return it as the output

The task is to find the largest rectangle possible in a given histogram and return its area.

• Iterate through the histogram and maintain a stack to keep track of the indices of the bars in non-decreasing order of heights.

• For each bar, calculate the area of the rectangle that can be formed using that bar as the smallest bar.

• To calculate the area, pop the bars from the stack until a bar with a smaller height is encountered.

• The width of the rectangle will be the difference between...read more

The task is to find the minimum number of conference rooms required to organize all the meetings.

• Sort the meetings based on their start time.

• Initialize a priority queue to store the end times of the meetings in ascending order.

• Iterate through the sorted meetings and check if the start time of the current meeting is greater than the end time of the meeting at the top of the priority queue.

• If it is, remove the meeting from the priority queue.

• Add the end time of the current meet...read more

The task is to find the maximum sum rectangle in a given matrix of integers.

• Iterate through all possible rectangles in the matrix

• Calculate the sum of each rectangle

• Keep track of the maximum sum rectangle found so far

• Return the maximum sum