Помогите дописать программу на C

Сделай проверку по кодам ASCI и будет тебе счастье.

#include "stdio.h"
#include "conio.h"
#include <iostream>
using namespace std;

#define FNAME "TEST.txt\0"

void main()
{
char fname[20] = FNAME;
FILE *f; // Txt file
char st[80]; // stroka from file
int i, n;

printf("\n Soderjimoe faila %s\n", fname);
puts("---------------------------------");

if ((f = fopen(fname, "rt")) == NULL)
{
printf("Error");
getch(;
return;
}

while (!feof(f))
{
fscanf(f,"%s", &st);
printf("%s\n", st);
}

fclose(f);

int num = 0;

for(int i=0;i<80;i++)
{
if(st == '1' || st == '2' || st == '3' || st == '4' || st == '5' || st == '6' || st == '7' || st == '8' || st == '9' || st == '0')
{
num+=1;
}
}

puts("---------------------------------\n");
cout << num << " numeric" << endl;
puts("---------------------------------");
puts("\n Press <enter>");
getch();
}

#include "stdio.h"
#include "conio.h"
#include <iostream>
using namespace std;

#define FNAME "TEST.txt\0"

void main()
{
char fname[20] = FNAME;
FILE *f; // Txt file
char st[80]; // stroka from file
int i, n;

printf("\n Soderjimoe faila %s\n", fname);
puts("---------------------------------");

if ((f = fopen(fname, "rt")) == NULL)
{
printf("Error");
getch();
return;
}

while (!feof(f))
{
fscanf(f,"%s", &st);
printf("%s\n", st);
}

fclose(f);

int num = 0;

for(int i=0;i<80;i++)
{
if(st == '1' || st == '2' || st == '3' || st == '4' || st == '5' || st == '6' || st == '7' || st == '8' || st == '9' || st == '0')
{
num+=1;
}
}

puts("---------------------------------\n");
cout << num << " numeric" << endl;
puts("---------------------------------");
puts("\n Press <enter>");
getch();
}

Домашний задания мы тут не делаем.