Write a C function, void sum_rows( int a*,int sum*,int n) to compute the sum of row elements in a nxn matrix and store the result in vector sum[]. Can this function be optimized by the compiler? If No, why? Rewrite the function to remove the optimization blocker.

Write a function maxSpan(vector) measures the span between the smallest and largest integers in an array. For instance, if the smallest was 3 and the largest was 5, then the span would be 3 (that is the numbers 3,4,5). You cannot use a loop; you must use the algorithms from the STL. #include <vector>#include <algorithm>using namespace std; int maxSpan(const vector<int>& v){ .......... }

2. Write C++ program, to find (search) X value in 1D array, and return the index of it's location.

B1 Write a function powers array (b) that takes a list (or 1-dimensional numpy array) of length d representing a row vector [bo, ...,ba-1] (for some d) and returns a numpy array representing the matrix bo fd-1 ТТТ 60 d-1 : d-1