Arests on the desk or other flat surface close to the user's computer and is moved across the surface with the user's hand in the appropriate direction to point to and select objects on the screen.

Write c function that can replace all the positive elements to 0 and negative to 1 in undefined length one-dimensional array. test your program in the main program by defining one-dimensional array of 6 elements

Reading characters and strings from the keyboard: consider the following c++ program 1. #include 2. #include 3. using namespace std; 4. mystring1 5. 6. int main() 7. { 8. 9. string mystring1, mystring2; mychar1 10. 11. 12. char mychar1, mychar2; 13. 14. cout< < "enter a string: "; mychar2 15. 16. cin> > mystring1; // 17. cin.get(mychar1); 18. cin> > mychar2; 19. getline(cin,mystring2); mystring2 20. 21. 22. cout<

Why do we mark tlc plates with pencil and not with pen