无法处理C++文本文件中的数据

为什么这个程序不会注册输入的正确ID和密码？

键入的任何内容都将继续输入错误的数据，但无法识别正确的数据。

文本文件内部是 5 个 ID 和 5 个 PIN 码，格式为 5 行 2 列。

#include<iostream>
#include<iomanip>
using namespace std;
void main()
{
    const int MAX=10, screenWidth=80;
    string A = "Welcome to ABC Bank!";
    int i=0;
    int ID[MAX], Password[MAX], pin, acc, counter=1 ,limit=2;
    cout<<setw((screenWidth-A.size())/2)<<" "<<A<<endl;
    cout<<"nAccount ID: ";
    cin>>acc;
    cout<<"Pin: ";
    cin>>pin;
    ifstream accountFile;
    accountFile.open("AccountDetails.txt");
    if (!accountFile)
        cout<<"Unable to open requested file!";
    else
    {
        while (!accountFile.eof())
        {
            accountFile>>ID[i]>>Password[i];
            i++;
        }
        accountFile.close();
        while (acc==ID[i] && pin==Password[i])
        {
            cout<<"Login successful!n";
            break;
        }
        while (acc!=ID[i] || pin!=Password[i])
        {
            if (counter==3)
            {
                cout<<"nUnauthorized Access Detected. Account has been LOCKED!n";
                break;
            }
            else
            {
                cout<<"nWrong Account ID/Pin. Please try again!"<<" (Attempts Left:"<<limit<<")";
                cout<<"nAccount ID: ";
                cin>>acc;
                cout<<"Pin: ";
                cin>>pin;
                counter++;
                limit--;
            }
        }   
    }
    system("pause");
}

在回顾了@Joachim Pileborg在之前的回答中所说的话后，这是我完成的更新代码。可悲的是，现在此代码在第一次尝试失败并且第二次尝试正确后无法成功登录。

ifstream accountFile;
accountFile.open("AccountDetails.txt");
if (!accountFile)
    cout<<"Unable to open requested file!";
else
{
    while (accountFile>>ID[i]>>Password[i])
    {
        i++;
    }
    accountFile.close();
    bool success = false;
    for (int j=0; !success && j<i; j++)
    {
        if (ID[j] == acc && Password[j] == pin)
            success = true; 
    }
    if (success)
        cout<<"nLogin Successful!n";
    else
    {
        while (!success)
        {
            cout<<"nAccount ID/Pin is incorrect. Please try again!"<<" (Attempts Left: "<<limit<<" )";
            cout<<"nAccount ID: ";
            cin>>acc;
            cout<<"Pin: ";
            cin>>pin;
            counter++;
            limit--;
            if (counter==3)
            {
                cout<<"Unauthorized Access Detected! Account Has Been LOCKED!n";
                break;
            }
        }
    }
}           
system("pause");