More Problems

• Find the product of the first and last elements of each column in a 2D matrix.
• Check if all elements in an array are either positive or negative.
• Find the number of elements in an array that are both perfect squares and prime numbers.
• Find the largest prime number that is smaller than the average of the elements in an array.
• Check if the difference between the sum of elements at even indices and odd indices in an array is even.
• Find the row in a 2D matrix where the sum of even elements is greater than the sum of odd elements.
• Find the column in a 2D matrix where the product of odd elements is smaller than the product of even elements.
• Check if all elements in an array are divisible by either 3 or 5.