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author | sijanec <sijanecantonluka@gmail.com> | 2020-12-05 15:35:38 +0100 |
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committer | sijanec <sijanecantonluka@gmail.com> | 2020-12-05 15:35:38 +0100 |
commit | 6d9781765daf3ac1e80f43c4a0d38d07261c4721 (patch) | |
tree | ceb1d414ee8752469ed35f1afc55c3e74168a205 /mat/euler/13/dodaj.c | |
parent | 12. naloga (diff) | |
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Diffstat (limited to '')
-rw-r--r-- | mat/euler/13/dodaj.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/mat/euler/13/dodaj.c b/mat/euler/13/dodaj.c new file mode 100644 index 0000000..d1fbb59 --- /dev/null +++ b/mat/euler/13/dodaj.c @@ -0,0 +1,38 @@ +#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 |