Read a $2-$character string from input into variable inString. Declare a Boolean variable isValid and assign isValid with true if the following conditions are met:

inString does not contain two of the same character.

For alphabetic characters, inString does not contain two of the same letter $($regardless of case$).$

Otherwise, assign isValid with false.

Ex: If the input is h@$,$ then isValid is assigned with true, so the output is:

Valid string

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

Invalid string

Note: Use getline$($cin$,$ inString$)$ to read the entire line from input into inString. #include

#include

#include

using namespace std;

int main$()\{$

string inString;

$/*$ Your code goes here $*/$

if $($isValid$)\{$

cout $<<$ "Valid string" $<<$ endl;

$\}$

else $\{$

cout $<<$ "Invalid string" $<<$ endl;

$\}$

return $0$;

$\}$