Problem Description: Given a square matrix, calculate the absolute difference between the sums of its diagonals: Mathematical Expression: If matrix[i][j] represents the element at the i-th row and j-th column: Goal: Compute: Diagonal Difference = | Sum of Primary Diagonal−Sum of Secondary Diagonal | Example Input: 11 2 4 4 5 6 10 8 -12 Calculations: Output: 15 Kotlin Solution Below is … Read more
Problem Description: A cycle in a linked list occurs when a node’s next pointer points back to one of the previous nodes, creating a loop. This means traversing the linked list will not end; it will keep looping indefinitely. Detecting such cycles is an important task in linked list operations, particularly when dealing with dynamic … Read more
The “Sum of Subset” problem is a classic example of a combinatorial problem that can be solved using recursion. The objective is to determine whether a subset of the given set of numbers can be found that sums up to a specific target value. This problem is significant in computer science, particularly in the fields … Read more
The “Sum of Subset” problem is a classic example of a combinatorial problem that can be solved using recursion. The objective is to determine whether a subset of the given set of numbers can be found that sums up to a specific target value. This problem is significant in computer science, particularly in the fields … Read more
To search for an element in a matrix, you can use various search algorithms depending on the properties of the matrix. One common and efficient algorithm to search for an element in a sorted matrix is the “Binary Search” algorithm. The binary search algorithm can be applied in a matrix if the matrix is sorted … Read more
To find the difference between two strings where one string is a permutation of another string with one additional character, you can use bit manipulation in Kotlin. This approach leverages the XOR operator to cancel out pairs of identical characters, leaving only the additional character as the result. Here’s how you can implement a function … Read more
Finding the missing number in an array containing n distinct numbers taken from 0, 1, 2, …, n is a classic problem that can be efficiently solved using bit manipulation. The idea is to use the XOR operation, which has two useful properties for this problem: Given these properties, you can XOR all the numbers … Read more
Reversing the bits of an integer means to flip the order of the bits in its binary representation. For example, if you have a 32-bit integer, reversing the bits would mean the bit at position 0 (rightmost bit) moves to position 31 (leftmost bit), the bit at position 1 moves to position 30, and so … Read more
Detecting whether a given number is a power of two using bit manipulation is an efficient technique that leverages the properties of binary representation. A number is a power of two if it has exactly one bit set in its binary representation. For example, 2 (binary 10), 4 (binary 100), and 8 (binary 1000) are … Read more
Counting bits, also known as the “Hamming Weight” or the “population count”, refers to counting the number of 1 bits in the binary representation of a number. This is a common problem in computer science, often used in various applications such as cryptography, algorithms, and network address calculation. In Kotlin, you can solve the counting … Read more
