More Problems

• Check if the sum of the diagonal elements in a 2D matrix is odd.
• Check if the sum of the diagonal elements in a 2D matrix is even.
• Find the number of prime numbers in each column of a 2D matrix.
• Find the number of perfect squares in each row of a 2D matrix.
• Check if an array contains only odd-indexed prime numbers.
• Check if an array contains only even-indexed composite numbers.
• Find the longest contiguous subarray where the sum of elements is greater than the product of the elements.
• Find the sum of all elements at odd indices in a 2D matrix.