More Problems

• Find the column in a 2D matrix that has the largest sum of odd numbers.
• Find the longest contiguous subarray with all elements divisible by a prime number.
• Find the sum of all even-indexed prime numbers in an array.
• Find the sum of all odd-indexed composite numbers in an array.
• Find the product of all prime numbers in each column of a 2D matrix.
• Find the row in a 2D matrix where the sum of all elements is odd.
• Find the column in a 2D matrix where the sum of all elements is even.
• Check if an array can be rearranged to form a palindrome.