#include <sys/types.h>
#include <sys/wait.h>
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <dirent.h>

/*
Student: Bivolaru Alexandru
Grupa: 30225
*/

int counter()
{
    pid_t current;
    int status;
    int fd = open("Fisier.txt",O_RDWR);
    if(fd == -1)
    {
        printf("fisierul nu s-a putut deschide!");
        exit(1);
    }
    for(int i = 1; i <= 10; i++)
    {
        current = fork();
        if(current > 0)
        {
            waitpid(current,&status,0);
            char c;
            if(write(fd,&c,sizeof(char)) < 0)
            {
                printf("Nu s-a putut scrie in fisier!");
                exit(1);
            }
        }
    }
    long procese = lseek(fd,0,SEEK_END);
    return procese;
}

int main()
{
    printf("%d\n",counter());
}