More Problems

• Check if the sum of elements at the boundary of a 2D matrix is greater than the sum of inner elements.
• Check if the product of elements at the boundary of a 2D matrix is smaller than the product of inner elements.
• Find the number of subarrays where the sum of elements is divisible by the sum of indices.
• Find the number of subarrays where the product of elements is divisible by the product of indices.
• Check if the sum of the elements in the diagonal of a square 2D matrix is a perfect square.
• Check if the product of the elements in the diagonal of a square 2D matrix is a perfect cube.
• Find the number of elements in an array that are divisible by both their index and the length of the array.
• Find the number of elements in an array that are multiples of the difference between their index and the first element.