in C language

Problem 15. Write and test a code to multiply a matrix mm by a vector with m elements using a function double* Product_Matrix_Vector(double A[4][4], v[4], int m). Limit the number of the elements m in A to 4. result =i=0m1Ai,jvj. The program has the following structure. Use and memory allocation malloc to return The resulf. The matrix is passed as the sized array. Print_Vector(result2, "result2=ln",m); wait(); return 0; void Input_Vector(double V[4], char message[20],int m ) void Input_Matrix(double A[4][4], char message[20],int m) void Print_Vector(double V[4], char message[20],int m ) void Print_Matrix(double A[4][4], char message[20],int m) double* Multiply(double A[4][4], double V[4], int m ) \{ double* buffer; int sizev = sizeof(double)*4; int i,j; buffer =( double ) malloc (sizev); if (buffer=-NULL) exit (1); double* Multiply(double A[4][4], double V[4], int m ) \{ double* buffer; int sizev=sizeof(double)*4; int i,j; buffer =( double* ) malloc (sizev); if (buffer=NULL) exit (1); for (i=0;i(j=0;j7) \{printf("size of the vector m->"); scanf("\%d",\&m1); 3 return m1; \}