* Ex. 1-13 ve 1-17‘nin 02.04.14 tarihine kadar ceyupoglu@ticaret.edu.tr adresine mail olarak atılması gerekmektedir.

* Ex. 2-2 ve 3.4, 28.03.14 tarihinde laboratuvarda kontrol edilecektir.

Ex. 1-13: Write a program to convert its input to lower case, using a function lower (c) which returns c if c is not a letter, and the lower case value of c if it is a letter.

Ex. 1-17: Write a function reverse (s) which reverses the character string s. Use it to write a program which reverses its input a line at a time.

Ex. 2-2: Write the function htoi (s), which converts a string of hexadecimal digits into its equivalent integer value. The allowable digits are 0 through 9, a through f, and A through F.

Ex. 3.4: Write the analogous function itob (n, s) which converts the unsigned integer n into a binary character representation in s. Write itoh, which converts an integer to hexadecimal representation.