More Problems

• Find the sum of elements at prime indices in an array.
• Find the product of elements at non-prime indices in an array.
• Find the number of subarrays whose product is odd.
• Find the number of subarrays whose product is even.
• Find the sum of the middle three elements of an array.
• Check if an array contains any duplicate consecutive elements.
• Check if the first half of an array is a mirror image of the second half.
• Find the sum of all prime numbers at even indices in an array.