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Answer to Question #55461 in C for himanshu

Question #55461
Write a function boolean isValidPassword (String password)
A Password is valid if it satisfies following conditions:
1. Length of the password must be more than 10(without counting spaces).
2. Password must contain at least one capital and one small alphabet
3. Password must contain at least 2 digits and if it does not have 2 digits then see next condition.
4. Password must contain at least one special character from the given set-
{$, @, _, -, ., /}
Expert's answer
Solve
#include <iostream>
#include <string>


using namespace std;

bool isValidPassword(string pass)
{
//1. Length of the password must be more than 10(without counting spaces)
int i,k=0;
int kCapital=0,kSmall=0,kDigit=0,kSpec=0;
for(i=0;i<pass.length();i++)
{
if(pass[i]!=' ')
k++;
if((pass[i]>='a')&&(pass[i]<='z'))
kSmall++;
if((pass[i]>='A')&&(pass[i]<='Z'))
kCapital++;
if((pass[i]>='0')&&(pass[i]<='9'))
kDigit++;
//$, @, _, -, ., /
if((pass[i]=='$')||(pass[i]=='@')||(pass[i]=='_')||(pass[i]=='-')
||(pass[i]=='.')||(pass[i]=='/'))
kSpec++;
}
if(k<=10)
return false;
//2. Password must contain at least one capital and one small alphabet
if((kCapital==0)||(kSmall==0))
return false;
//3. Password must contain at least 2 digits and if it does not have 2 digits then see next condition.
if(kDigit<2)
if(kSpec==0)
return false;
return true;
}


int main()
{
string pass;
cout<<"Input password: ";
getline(cin,pass);
if(isValidPassword(pass))
cout<<"\nValid password";
else
cout<<"\nInvalid password";
return 0;
}


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