More Problems

• Find the product of elements in the first k columns of a 2D matrix.
• Check if the difference between the sum of elements in each row of a 2D matrix is constant.
• Check if the difference between the product of elements in each column of a 2D matrix is constant.
• Find the row in a 2D matrix that contains only positive prime numbers.
• 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.