In C Programming Language:

Write A Program That Inputs 4 Hexadecimal Digits As Strings (Example 7f), Converts The String Digits To A Long Use Strtol(Input String,&Ptr,Base) To Do The Conversion. Just Declare Ptr As A Char Ptr, Dont Worry About What It Does. Copy Each Converted Number [ A Long] Into Unsigned Chars [Like The Variable Num1 Below Hint: Cast A Long Variable Into The Unsigned Chars] Before Performing The Following Logical Operations On Them (Parenthesis Might Help, Since Things Should Be Executed From Left To Right):

Result=Num1 And Num2 Or Num 3 Exclusive Or Num4

Print Out Result In Capital Hex