More Problems

• Check if the sum of elements in the main diagonal of a 2D matrix is a prime number.
• Check if the product of elements in the secondary diagonal of a 2D matrix is a composite number.
• Find the number of subarrays where the sum of elements is a multiple of the number of elements in the subarray.
• Find the number of subarrays where the product of elements is a multiple of the number of elements in the subarray.
• Find the longest contiguous subarray where the sum of elements is divisible by both 2 and 5.
• Find the longest contiguous subarray where the product of elements is divisible by both 3 and 7.
• Check if all elements in an array are greater than or equal to their index squared.
• Check if all elements in an array are divisible by both the sum of their digits and their index.