#include <stddef.h>
#include <stdio.h>
#include <stdlib.h>
int main(int argc, char* argv[]) {
    FILE* f = NULL;
    size_t size = 0;
    char* line = NULL;
    ssize_t nread = 0;

    unsigned long long bat_sum = 0;

    f = fopen(argv[1], "r");

    while ((nread = getline(&line, &size, f)) != -1) {
        unsigned long long bat_n = 0;
        int number_of_batteris = 12;
        int b_i = 0;
        int a_i_1 = 0;
        int a_i = -1;
        int b = 0;
        printf("line: %s",line);
        // go through each line (we can keep as chars) get the largest number, get its index,
        // go through second loop starting from that index, get the largest number there.
        // i love loops within loops


        //generalizing for n amount of battteris

        for (int n = number_of_batteris; n>0; n--) {
            a_i_1 = a_i;
            a_i = 0;
            int a = 0;
            for (int i = a_i_1+1; i< nread-1-n+1; i++) { // we dont need line end char i think., and we cant choose the last one since then there will be no place for the second battery
                if (a < line[i] - '0') {
                    a_i = i;
                    a = line[i] - '0';
                }
            }
            bat_n = bat_n*10;
            bat_n += a;
        }






        printf("digits :(%llu)\n\n",bat_n);

        bat_sum += bat_n;
    }


    printf("bat summ: %llu\n",bat_sum);


    free(f);
    free(line);
    return 0;
}