More Problems

• Find the minimum number of operations required to turn an array into a mountain array (increasing then decreasing).
• Given an array, find the number of ways to split it into two subarrays where the sum of elements in both subarrays is a prime number.
• Find the maximum number of pairs of elements in an array such that the sum of each pair is divisible by a given integer k.
• Given an array, find the maximum length of a subarray where the sum of elements is divisible by a given number.
• Check if it is possible to sort an array into non-decreasing order by reversing at most one subarray.
• Find the longest subsequence of an array such that the difference between consecutive elements is the same.
• Given an array, find the minimum number of elements to remove so that the remaining elements form an arithmetic progression.
• Find the minimum number of moves required to make all elements of an array equal by incrementing or decrementing adjacent elements.