C++ programming help please!! stack push, pop, and display my data to read from

Question

C++ programming help please!!

stack push, pop, and display

my data to read from the program text is: A 3A 5A 9D 0A 7

My program should read the file, one line at a time, reading the symbol (A or D) and the integer. If an A is read, the following integer should be pushed onto the stack. If a D is read, the following integer is ignored, and the stack is popped. When your program reaches end of file, it should print out the contents of the stack. and I need help with the code here is my code

#include
#include
using namespace std;

#include "IStack.h"

int main(int argc, char* argv[])
{
  
// Try to open the file; if fail, report and quit
ifstream inf(argv[1]);
if (!inf)
{
cerr << "Can't open input file " << argv[1] << endl;
return 1;
}

// I need some HELP here with code it needs to also close the file..
  
return 0;
}

Explanation / Answer

#include<iostream>
#include<fstream>
using namespace std;
#include "IStack.h"
int main(int argc, char* argv[])
{
// Try to open the file; if fail, report and quit
ifstream inf(argv[1]);
if (!inf)
{
cerr << "Can't open input file " << argv[1] << endl;
return 1;
}
// I need some HELP here with code it needs to also close the file..
IStack intStack; // Assuming IStack is stack of integers.
char ch; int k;
while(!inf.eof()){
   inf >> ch >> k;
   if(ch == 'A')
       intStack.push(k);
   else if(ch=='D')
       intStack.pop();
}
inf.close(); // close file.
while(!intStack.empty()){    // print remaining elements of stack.
   cout << intStack.top() << " ";
   intStack.pop();
}
cout << endl;
return 0;
}

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