More Problems

• Check if all elements in an array are divisible by both their index and their digit sum.
• Check if all elements in an array are divisible by both their index and their digit product.
• Find the row in a 2D matrix where the sum of elements is a multiple of both the number of rows and columns.
• Find the column in a 2D matrix where the product of elements is a multiple of both the number of rows and columns.
• Check if the sum of elements in a square 2D matrix is a perfect square.
• Check if the product of elements in a square 2D matrix is a perfect cube.
• Find the number of subarrays where the sum of elements is smaller than their digit sum.
• Find the number of subarrays where the product of elements is smaller than their digit product.