C++   How to Program (Early Objects Version)
C++ How to Program (Early Objects Version)
10th Edition
ISBN: 9780134448824
Author: Paul Deitel; Harvey M. Deitel
Publisher: Pearson Education (US)
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Chapter 21, Problem 21.25E
Program Plan Intro

Checking Validity of Social Number

Program Plan:

  • Include the required header files.
  • Declare the prototype of the function isValidSocialSecurityNumber.
  • Define the “isValidSocialSecurityNumber()” function.
    • Check whether str1.length()!=11 or str1.find_first_of("-")!=3 or str1.find_last_of("-")!=6.
      • If so then return false.
    • Traverse through str1.
      • If i is ‘-‘ at locations 3 or 6 then continue.
      • If the traversed character is not a digit then return false.
    • Return true.
  • Define the “main()” function
    • Create a string variable s and assign the social security number to it.
    • Make a call to function isValidSocialSecurityNumber with s and assign to ans.
    • If value of ans is 1 then display valid message.
    • Else display invalid message.

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