Please help me with code

[sky123]

Hi, so I'm having trouble with my program that validates a user's password can you please help me?
this are the problems im having so far:
I keep getting strong password even though its not a strong password. The code is through lines 59 - 100
Im also having trouble on line 163 if(userresponse.find_first_of("@%?&")) its not working, I want the program to check if the password the user inputs has one of those special characters.

#include<iostream>
#include <string>
#include <fstream>
#include <iomanip>
using namespace std;
bool checker (string passwords[],string userresponse); // prototype common password
bool lengthcheck (string userresponse);  //checks legnth is not less than 8
bool numbercheck(string userrespnse);    //checks for number
bool charactercheck(string userresponse); // checks for character
bool uppercheck(string userresponse); // checks for uppercase letter
bool alphacheck(string userresponse); //checks alpha

int main()
{
//varriable
int count = 0;
string passwordlist [4000];
string userresponse;
string result;
 
 ifstream infile ("passwords.txt"); //open
 
   if(! infile)
   {
        cout<< " error opening file " <<endl; // identifies if if file opens properly
        exit(1);
   }
 
  
   while(!infile.eof())
 {
        infile>> passwordlist[count] ;
 
        count++;
 }
  cout<<endl;
  //rules and intro
   cout<< "Your password must contain the following: "<<endl;
   cout<<"  *The password must be at least 8 characters long."<<endl;
   cout<<"  *The password must contain at least one alpha character [a-zA-Z]."<<endl;
   cout<<"  *At least one numeric character [0-9]."<<endl;
   cout<<"  *One special character from this set: @ % ? &"<<endl;
   cout<< "-------------------------------------------------------------------"<<endl;
   cout<<"Please enter a possible password: ";
   cin>> userresponse;
   //cout << userresponse.find_first_of("@%?&") << endl;
   cout<<endl;
   cout <<"-------------------------------------------------------------------"<<endl;
   cout<<"Results: "<<endl;
 
   checker(passwordlist, userresponse); // calling function
   lengthcheck(userresponse);
   numbercheck(userresponse);
   charactercheck(userresponse);
   uppercheck(userresponse);
   alphacheck(userresponse);
  
  
   if ( bool checker  = false)   // password strong outcome 
   {
    if(bool lengthcheck = true)
    {
     if(bool numbercheck = false)
     {
      if(bool charactercheck = false)
      {
       if(bool alphacheck = true)
       {
        if(bool uppercheck = false)
        cout<< "Weak password\n";
       return true;
	   }}}}}
    if ( bool checker  = true)   // password medium outcome 
   {
    if(bool lengthcheck = true)
    {
     if(bool numbercheck = true)
     {
      if(bool charactercheck = false)
      {
       if(bool alphacheck = true)
       {
        if(bool uppercheck = true)
        cout<< " Medium password\n";
       return true;
	   }}}}}
     if ( bool checker  = true)   // password weak outcome 
   {
    if(bool lengthcheck = true)
    {
     if(bool numbercheck = true)
     {
      if(bool charactercheck = true)
      {
       if(bool alphacheck = true)
       {
        if(bool uppercheck = true)
        cout<< "Strong password\n";
       return true;
	   }}}}}
  
   return 0;
}
 
bool checker (string passwordlist[],string userresponse)
 {
 
//variables
 int i;
 bool x = false;
 
    for(i=0;i<4000;i++)
    {
 
         if (userresponse == passwordlist[i])
             {
                x= true;
             }
 
    }
         if( x ==true)
              cout<< "[X] This is a commonly used password. "<<endl;
         else
             cout<< "This password is good." << endl;
   return true;
}
bool lengthcheck(string userresponse)
{
 //variables
 int minsize = 8;
 
 
 if(userresponse.size()>= minsize)
  {
     cout<< "Password length is good."<<endl;
  
  }
 else
     cout<<"[X] The password is less than 8 charcaters."<<endl;
  return true;
}
bool numbercheck(string userresponse)
{
 int j;
 bool num = false;
 
 for (j=0;j<userresponse.length();j++)
         if(isdigit(userresponse[j]))
 {
  num = true;
 }
 if(num==true)
  cout<<"Password contains at least 1 digit."<<endl;
 else
  cout<<"[X] Password does not contain a digit."<<endl;
 return true;
}
bool charactercheck(string userresponse)
{
    int i;
    bool chara = false;
   
    if(userresponse.find_first_of("@%?&"))
      {
         chara = true;
      }
       if(chara==true)
         {
             cout<< "Password contains a character."<<endl;
         }
        else
           cout<<"[X] Password does not contain a character."<<endl;
    return true;
}
bool uppercheck(string userresponse)
{
    int j;
    bool Upper = false;
     for (j=0;j<userresponse.length();j++)
         if(isupper(userresponse[j]))
            {
                 Upper = true;
             }
             if(Upper==true)
                 {
                     cout<< "This password contains an uppercase character"<<endl;
                 }
             else
                    cout<< "[X] Password does not contain an uppercase character."<<endl;
 return true;
}
bool alphacheck(string userresponse)
{
  int j;
  bool Upper = false;
  
  for (j=0;j<userresponse.length();j++)
   if(isalpha(userresponse[j]))
             {
                 Upper = true;
             }
   
    if(Upper==true)
                 {
                     cout<< "This password contains an alpha character"<<endl;
                 }
                else
                    cout<< "[X] Password does not contain an alpha character."<<endl;
 
return true;
}
 

[S6k9GNh0]

You should listen to your compiler:
http://liveworkspace.org/code/1CVPYV$0