When deleting an element from the middle of a 1D array, what is the primary challenge?

Which of the following is an example of a scenario where deletion in a 1D array is commonly used?

What happens to the size of an array when an element is deleted?

You are given a 0-indexed array of distinct integers nums.There is an element in nums that has the lowest value and an element that has the highest value. We call them the minimum and maximum respectively. Your goal is to remove both these elements from the array.A deletion is defined as either removing an element from the front of the array or removing an element from the back of the array.Return the minimum number of deletions it would take to remove both the minimum and maximum element from the array.

In an array-based linear list, if you delete an element from the middle, what happens to the remaining elements? Group of answer choices

Suppose you have n elements in the array 'a' numbered from 1 to n. It is possible to remove the i-th element of 'a' if the number a[i] and i are relatively co-prime i.e. gcd(a[i],i)=1. After an element is removed, the elements to the right are shifted to the left by one position.An array b with n integers such that 1≤b[i]≤n−i+1 is a removal sequence for the array a if it is possible to remove all elements of a, if you remove the b1-th element, then the b2-th, ..., then the bn-th element. For example, let a=[42,314]:[19,19] is a removal sequence: when you remove the 1-st element of the array, the condition gcd(42,19)=1 holds, and the array becomes [314];when you remove the 1-st element again, the condition gcd(314,19)=1 holds, and the array becomes empty.[2,1] is not a removal sequence: when you try to remove the 2-nd element, the condition gcd(314,2)=1 is false.An array is special if it has at least two removal sequences. For example, the array [1,2,5] is special: it has removal sequences [3,1,1] and [1,2,1]. The array [42,314] is not special: the only removal sequence it has is [1,1].You are given two integers n and m. You have to calculate the number of special arrays a such that the length of a is from 1 to n and each ai is an integer from 1 to m.Input FormatThe first line of the input contains two integers n and m.ConstraintsPrint one integer — the number of special arrays a such that the length of a is from 1 to n and each a[i] is an integer from 1 to m. Since the answer can be very large, print it modulo 998244353.Output Format2≤n≤3⋅10^51≤m≤10^12Sample Input 010 24Sample Output 0406957500Sample Input 12 4Sample Output 18