More Problems

• Find the number of subarrays where all elements are divisible by a given number k.
• Check if all rows in a 2D matrix contain only positive numbers.
• Check if all columns in a 2D matrix contain only negative numbers.
• Find the product of all elements in the first row of a 2D matrix.
• Find the sum of all elements in the last column of a 2D matrix.
• Check if an array can be rearranged to form an arithmetic progression.
• Check if an array can be rearranged to form a geometric progression.
• Find the row in a 2D matrix where the product of elements is the largest.