More Problems

• Check if the product of elements at prime indices in an array is greater than the product of elements at composite indices.
• Find the row in a 2D matrix where the sum of elements is smaller than the sum of elements in all other rows.
• Find the column in a 2D matrix where the product of elements is larger than the product of elements in all other columns.
• Check if all elements in an array are powers of 6.
• Check if all elements in an array are powers of 7.
• Find the longest contiguous subarray where the sum of elements is divisible by both 8 and 12.
• Find the longest contiguous subarray where the product of elements is divisible by both 9 and 15.
• Check if the sum of all elements in the boundary of a 2D matrix is a perfect square.