More Problems

• Count how many elements in an array are divisible by either 3 or 7.
• Find the row in a 2D matrix where all elements are positive.
• Check if an array contains more even numbers than odd numbers.
• Find the sum of all elements in an array that are perfect cubes.
• Count the number of subarrays where the sum of elements is even.
• Find the largest contiguous subarray with all elements greater than a given number x.
• Find the sum of elements at prime indices in an array.
• Find the product of elements at non-prime indices in an array.