C++  Write a multithreaded program using only Pthreads that uses several threads to multiply two matrices. The multiplication of matrix A with M rows and L columns, and a matrix B with L rows and N columns gives a resulting matrix C with M rows and N columns, and is given by the formula,   In matrix multiplication, each element Cij is the dot product of the ith row vector of A with the jth column vector of B. The program uses one thread to calculate a dot product. Exact result please.

C++

Utilizing c++, write a code to implement the following:Firstly, create(populate) an array (one with unknown size) and determine its(array's) size. Furthermore, the array should then be sorted and its output(prints out) should print each element in the array in order from the last to the 1st index.

Write a C program that contains int count_zero(int a[ ][6], int n) function that takes two dimensional array and the number of rows. It should return the number of elements with zero values. Assume that the matrix a is 6 by 6 with integer elements and it should be created in the main function and sent to the count_zero function.   45 5 10 0 6 0 3 2 0 9 4 3 7 3 0 17 43 15 0 12 65 91 25 12 21 41 14 0 0 11 32 0 99 0 14 1