Zad1

#include <stdio.h>

int suma_cifara(char* string)
{
    int suma = 0;

    while(*string != 0)
    {
        if(*string >= '0' && *string <= '9')
        {
            suma += (*string - '0');
        }

        string++;
    }

    return suma;
}

int main()
{
    char string[] = "hrk45ljus21";

    printf("%d", suma_cifara(string));

    return 0;
}