i wrote it in c++,so it just giving me the matrix.

#include<iostream>

using namespace std;

int main()
{
    int account;
    do
{

     float startBalance, endBalance, allowed, credits, charges;

     cout << "Enter account number: ";
     cin >> account;

     cout << "Enter beginning balance: ";
     cin >> credits;

     cout << "Enter total charges: ";
     cin >> charges;

     cout << "Enter total credits: ";
     cin >> startBalance;

     cout << "Credit limit?: ";
     cin >> allowed;

     endBalance = startBalance + charges - credits;
     if (endBalance > allowed)
          cout << "Credit limit exceeded";
}
while (account != -1);

cout<<"enter account number (-1 to end)"<<endl;

return 0;
}

what do you mean by 3 useres ? if you mean that you want the program take input from 3 useres in the same time ! i think that it is good to use structure by this information like
struct account
{
float startBalance, endBalance, allowed, credits, charges;
}. .... then complete
okay :cheesy:

Be a part of the DaniWeb community

We're a friendly, industry-focused community of developers, IT pros, digital marketers, and technology enthusiasts meeting, networking, learning, and sharing knowledge.