Provide a complete explaination about this source code below: #include using namespace std; string USERNAME[20] ={"Reynold","Jen","Pani"}; string PASSWORD[20] ={"Muffin","Fritz","Finger"}; int balance[20] = {500000, 50000, 5000}; int usernumber; int decreaseBalance(){ int x; cout << "\nHow much do you want to withdraw? "; cin >>x; cout << "\nPhp" << x << "has been reduced from your account"; return x;} int increaseBalance(){
Provide a complete explaination about this source code below:
#include <iostream>
using namespace std;
string USERNAME[20] ={"Reynold","Jen","Pani"};
string PASSWORD[20] ={"Muffin","Fritz","Finger"};
int balance[20] = {500000, 50000, 5000};
int usernumber;
int decreaseBalance(){
int x;
cout << "\nHow much do you want to withdraw? ";
cin >>x;
cout << "\nPhp" << x << "has been reduced from your account";
return x;}
int increaseBalance(){
int x;
cout << "\nHow much do you want to deposit? ";
cin >>x;
cout << "\nPhp" << x << "has been added to your account" ;
return x;}
void checkBalance(int x){
cout << "\n\nYour balance is: " << "Php" <<x;}
bool login(){
system("cls");
string username;
string password;
cout << "USERNAME: ";
cin >> username;
cout << "\nPASSWORD: ";
cin >> password;
for(int i = 0; i < 20; i++){
if((username.compare(USERNAME[i]) == 0)
&& (password.compare(PASSWORD[i]) == 0)){
usernumber = i;
return true;} }
return false;}
main(){
bool exit = false;
cout << "Welcome to BankO!\n";
while(exit != true){
int choice;
do{
cout << "\n\n[0] LOG IN\n[1] exit\n";
cin >> choice;
}while(!(choice == 1 || choice == 0));
if(choice == 0){
bool valid = login();
if(valid){
cout << "Hello! " <<
USERNAME[usernumber];
bool cancel = false;
while(!(cancel)){
int option;
do{
cout << "\n[0] Deposit\n[1] Widthraw" <<
"\n[2] Check Balance\n[3] LOG OUT \n";
cin >> option;
}while(!(option >= 0 || option<= 3));
switch(option){
case 0:
balance[usernumber] += increaseBalance(); break;
case 1:
balance[usernumber] -= decreaseBalance(); break;
case 2:
checkBalance(balance[usernumber]); break;
default: cancel = true;
break;}
}
}
else
cout << "INVALID ACCOUNT!";
}
else
exit = true;
}
}
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