Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Read a 2-character string from input into variable inputString. Declare a Boolean variable isValid and assign isValid with true if inputString contains a lowercase letter. Otherwise, assign isValid with false.

Ex: If the input is y-, then isValid is assigned with true, so the output is:

Valid string

Ex: If the input is 21, then isValid is assigned with false, so the output is:

Invalid string

Note: Use getline(cin, inputString) to read the entire line from input into inputString.

#include <iostream>
#include <string>
#include <cctype>
using namespace std;

int main() {
   string inputString;

   /* Your code goes here */
   
   if (isValid) {
      cout << "Valid string" << endl;
   }
   else {
      cout << "Invalid string" << endl;
   }

   return 0;
}

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