More Problems

• Find the number of elements in an array that are divisible by both 11 and 21.
• Find the row in a 2D matrix where the sum of the elements is a perfect square.
• Find the column in a 2D matrix where the product of the elements is a perfect cube.
• Check if the sum of elements at odd indices in an array is greater than the sum of elements at even indices.
• Check if the product of elements at prime indices in an array is smaller than the product of elements at composite indices.
• Find the number of subarrays where the sum of elements is divisible by their index sum.
• Find the number of subarrays where the product of elements is divisible by their index product.
• Find the longest contiguous subarray where the sum of elements is greater than the sum of their squares.