We will generate all rotations of a number in JavaScript by converting the number into a string, then rotating the characters of the string, and finally converting it back into a number. This process will be repeated for each rotation. We will continuously repeat this process until we have generated all the possible rotations of the given number. This program will allow us to efficiently generate all rotations of a number and will be useful for various mathematical computations. Approach The approach to generate all rotations of a number in JavaScript is to convert the number to a string, split ... Read More

We will write a JavaScript program that generates a matrix with the sum of the secondary diagonal being a perfect square. Our program will use nested loops to traverse the matrix and calculate the sum of the secondary diagonal elements. We will then use the Math.sqrt() method to find the square root of the sum and check if it is a whole number. If it is, we will consider the sum to be a perfect square. Approach The approach to generate a matrix with the sum of secondary diagonal equal to a perfect square is as follows − Create ... Read More

We will be using JavaScript to form coils in a matrix. The process involves manipulating the elements of the matrix to create a spiral pattern. This can be achieved by changing the direction of traversal, keeping track of the visited elements, and adjusting the indices accordingly. We will be continuously working on the logic to make sure that the program runs smoothly and efficiently to produce the desired output. Approach One approach to form coils in a matrix using JavaScript would be the following − Define the size of the matrix. Initialize the matrix with zeros. Use nested loops ... Read More

We are going to write a program that will find the subarray with the least average. To do this, we will iterate through the array and keep track of the current subarray and its sum. For each element, we will calculate the average of the current subarray and compare it with the minimum average we have seen so far. If it is lower, we will update the minimum average and the start and end indices of the subarray. At the end of the iteration, we will return the subarray with the least average. Approach To find the subarray with the ... Read More

We will be finding the longest bitonic subsequence in each array using dynamic programming. A bitonic subsequence is a sequence which is first increasing, then decreasing. To find the longest bitonic subsequence, we will use a two-step approach. First, we will find the longest increasing subsequence in the given array, then we will find the longest decreasing subsequence in the reverse of the given array. Finally, we will add the lengths of both the subsequences and subtract 1 to exclude the common element in the middle. Approach A bitonic sequence is a sequence that first increases and then decreases. The ... Read More

We will use the formula for simple interest to calculate the interest for a given principal amount, rate of interest, and time period. Simple interest is calculated as the product of the principal amount, rate of interest, and time period. This formula makes it easy for us to find the interest amount without having to calculate the compound interest. In our JavaScript program, we will take input from the user for the principal amount, rate of interest, and time period, and then use the formula to calculate the simple interest. We will then display the result to the user. By ... Read More

We will find the perimeter of a triangle by adding the lengths of its three sides. To do this, we will first declare three variables to store the lengths of the sides and then use the addition operator to sum these values and store the result in a fourth variable. Finally, we will print out the value stored in the fourth variable to get the perimeter of the triangle. Approach Here is a JavaScript program to find the perimeter of a triangle − function trianglePerimeter(a, b, c) { return a + b + c; } Explanation ... Read More

We are writing a JavaScript program to find the mth element after k right rotations of an array. Firstly, we will take the input for the array, m and k. Then, we will use a loop to perform the right rotations. In each iteration of the loop, we will move the last element of the array to the first position. We will continue this loop for k times to get the rotated array. Finally, we will return the mth element of the rotated array as the result. Approach The approach for finding the mth element after k right rotations of ... Read More

We will be describing the process of finding the median in a row-wise sorted matrix using JavaScript. First, we will traverse the matrix to gather all the elements into a single array. Then, we will sort the array to find the middle value, which will be our median. In case of an even number of elements, the median will be the average of the two middle values. Approach Given a row-wise sorted matrix, the median can be found by the following approach − Combine all rows into a single sorted array. Find the middle element(s) of the combined array, ... Read More

We will be writing a program to find the maximum value possible by rotating the digits of a given number. We will be using a loop to break down the number into individual digits and rearrange them in a way that gives us the maximum value. The loop will continuously rotate the digits and keep track of the highest value obtained until all possible rotations have been evaluated. The maximum value obtained from this process will then be returned as the result. Approach To find the maximum possible value by rotating digits of a given number, follow these steps − ... Read More