How to write a checkbook balancing program in c language?

[allnillin]

i have finished writing my program, but teacher want me to write a checkbook balancing program of a user's account. It has to use getline () to read a line, which will contain either the word "withdrawal" or "deposit". After reading each pair of line, the program should compute and print new balance. I think i need to declare a variable to hold the running balance. The program must warn when the user if the withdrawal exceeds the balance.
*input should be somthing like this:

1.deposit
2.100
3.withdrawal
4.12.34
5.withdrawal
6.49.00
7.deposit
8.7.01

*OUT PUT of the program should print something like:

balance:100.00
balance:87.66
balance:38.66
balance:45.67

------------------------------------
>>BELOW IS THE PROGRAM I HAVE WRITTEN - PLS HELP!
--------------------------------------…

//************************************…
// 
// Description:A basic checkbook balancing system.

#define win
#ifdef lin
#include <iostream>
#include <ctype>
#endif /* lin */
#ifdef win
#include <iostream.h>
#include <ctype.h>
#endif /* win */
using namespace std;
void clr(unsigned int lines);
int main(void) {
char correct[20], correkt, p_m;
bool pass=true, done=false;// Boolean variables are either true or false
unsigned int i=0; // Unsigned means that it will not be negative
float prev_bal, balance=0.0, w_d=0.0;
cout << endl << "Welcome to" << endl;
cout << "C H E C K B O O K" << endl;
cout << " Version 0.8.91" << endl;
do {
cout << "Enter income $";
cin >> balance;
if(balance < 0) { pass=false; break; }
if(pass==true) {
cout << "Income ~ $" << balance << endl;
cout << "... Is this correct? > ";
cin >> correct;
correkt=toupper(correct[0]);
if(correkt=='Y' || correkt=='T') {}
else if(correkt=='N' || correkt=='F') pass=false;
else if(correkt=='X') { return 0; }
else { cout << "ERROR: Bad input."; pass=false; }
}
cout << endl;
} while(pass==false);
clr(0);
cout << "T R A N S A C T I O N S" << endl << endl;
cout << "Please input if each transaction was a" << endl;
cout << "(W)ithdraw -or- (D)eposit" << endl << endl;
cout << "At the prompt after the final withdraw or deposit, input X to quit." << endl;
cout << endl << endl;
/* We're reusing the `correct' and `pass' vars here to save memory. */
for(;;i++) {
do {
prev_bal = balance;
cout << "Transaction " << i << ": (W)ithdraw or (D)eposit? (X to quit) > ";
cin >> correct;
correkt=toupper(correct[0]);
if(correkt=='W') {
w_d=0.0;
cout << endl << endl << "How much is withdrawn? $";
cin >> w_d;
balance -= w_d;
pass=true;
p_m='-';
}
else if(correkt=='D') {
pass=true; 
w_d=0.0;
cout << endl << "How much is deposited? $";
cin >> w_d;
balance += w_d;
p_m='+';
}
else if(correkt=='X') { done=true; }
else { cout << "ERROR: Bad input."; pass=false; }
cout << endl;
} while(pass==false);
if(done==true) break;
if(pass==true) {
cout << endl << "-- prev balance -- " << prev_bal;
cout << endl << " " << p_m << w_d;
cout << endl << "------------------ ";
cout << "Your balance is $" << balance;
cout << " ------------------" << endl << endl;
}
} //end i++ loop
clr(0);
cout << endl << "------------------ ";
cout << "Your final balance is $" << balance;
cout << " ------------------" << endl << endl;
cout << endl << endl << "Checkbook by KALHU." << endl << endl;
return 0;
}
void clr(unsigned int lines) {
unsigned int i;
if(lines==0) lines=99;
for(i=0; i<=lines; i++) { cout << endl; }
}

[WaltP]

Help with what? You need to explain whatever problem you are having.

You also need to format your code because, as posted, it's unreadable.

[allnillin]

The program must warn when the user if the withdrawal exceeds the balance.
*input should be somthing like this:

1.deposit
2.100
3.withdrawal
4.12.34
5.withdrawal
6.49.00
7.deposit
8.7.01

*OUT PUT of the program should print something like:

balance:100.00
balance:87.66
balance:38.66
balance:45.67