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#pragma once
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
int dodaj (const char * c, char * d, long int a, long int b) {
unsigned long long int carry = 0; // carry je pri seštevanju vedno pozitiven
long int diff = b-a;
unsigned long long int dodajmo_tole = 0;
unsigned long long int temu = 0;
for (b = b-1; b >= 0; b--) {
if (b-diff >= 0) {
dodajmo_tole = c[b-diff] - '0';
} else {
dodajmo_tole = 0;
}
temu = d[b] - '0';
dodajmo_tole = dodajmo_tole + carry;
carry = 0;
if (temu + dodajmo_tole > 9) {
dodajmo_tole = (temu + dodajmo_tole) - 10;
temu = 0;
carry++;
}
d[b] = temu + dodajmo_tole + '0';
}
return 0;
}
#ifndef DISABLE_LIB_TESTS
int main (int argc, char ** argv) {
char c[] = "37107287533902102798797998220837590246510135740250";
char d[] = "00000000000000000000000000000000000000000000000000000000000000000000000000000000000";
int a = strlen(c);
int b = strlen(d);
dodaj(c, d, a, b);
fprintf(stdout, "test: %s\n", d);
return 0;
}
#endif
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