Stuff

#include <stdio.h>#include <string.h>int x = 2;int y = 3;int multiply ( int x, int y ){  return x * y;}int multiply_unpassed (){  x = x + 1;  return 0;}int change_value (int *ptrMyPointer){  *ptrMyPointer = 9;  return 0;}int main (int argc, char *argv[]){  int iMyInt = 7;  printf ("Result %d \n" , multiply ( x, y));  printf ("x = %d y = %d\n", x, y);  multiply_unpassed();  printf ("x = %d y = %d\n", x, y);  printf ("iMyInt = %d \n", iMyInt);  change_value(&iMyInt);  printf ("iMyInt = %d \n", iMyInt);}