More Problems

• Find the column in a 2D matrix that contains only negative composite numbers.
• Check if the sum of the elements in an array is a Fibonacci number.
• Check if the product of elements in an array is divisible by a given number n.
• Find the number of elements in an array that are divisible by the sum of their digits.
• Find the number of elements in an array that are divisible by the product of their digits.
• Check if the sum of elements in a 2D matrix is greater than the product of all elements.
• Find the longest contiguous subarray where all elements are powers of 2.
• Find the longest contiguous subarray where all elements are powers of 3.