More Problems

• Find the number of subarrays where the sum of the elements is divisible by 3.
• Check if the product of all elements in an array is a perfect square.
• Find the second largest element in a 2D matrix.
• Find the second smallest element in a 2D matrix.
• Find the number of even elements in each row of a 2D matrix.
• Find the number of odd elements in each column of a 2D matrix.
• Check if the elements in an array are multiples of their indices.
• Find the sum of all prime numbers in each row of a 2D matrix.