Using Pointers Create a program pointerTester.c to experiment with pointers. Implement the following steps one by one in your program: YOU NEED TO ANSWER QUESTION Use printf to print your answers at the end(after 12). 1. Declare three integer variables a, b and c. Initialize them to 0, 100 and 225, respectively. 2. Print the value of each variable and its address. 3. Add the following declaration to your code: int *pA = &a, *pB = &b, *p; 4. Print the value of each pointer and the value it points to (using the pointer) 5. Run your program multiple times. a. Does any of the values *pA, *pB or *p change? b. Does any of the values pA, pB or p change? 6. Change the value that p points to to 50 without declaring the valuable that p points to. Can you print the value that p points to? 7. Declare an array z of 10 integers and initialize its elements to 0, 1, 2, ., 9 8. Print the address of each element in the array using the z[i] notation 9. Print the address of each element in the array using the z + i notation 10. Print the content of the array using z + i notation 11. Declare a string literal x and set it to value hello. 12. Change the second character of x to upper case. What happens?

Strings Write a program reading.c that reads from standard input according to the users choice. The program should ask How would you like to read? 1: character by character; 2: word by word; 3: line by line. Default: print Invalid choice. You should write the three procedures below. - The procedure readCharByChar asks the user to enter 5 characters and read them (hint: using %c). - The procedure readWordByWord asks the user to enter 5 words and read them (hint: using %s). - The procedure readLineByLine should ask the user to enter 5 lines and read them (hint: using gets). In each of the three procedures, the values read should be printed to the screen, each on a separate line showing: input index, tab, unit (char, word, or line).

According to the user choice, your program uses a switch statement to call readCharByChar, readWordByWord, and readLineByLine, respectively. Make sure your code is properly indented, your variables have meaningful names, and macro definitions are used when appropriate.