A little refactoring for day 4.
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@ -3,7 +3,6 @@
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include <stdbool.h>
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uint64_t parse_number(char *end);
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@ -43,12 +42,14 @@ int main(int argc, char **argv) {
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for (char *n_pos = pipe_pos + 4;; n_pos += 3) {
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uint8_t n = parse_number(n_pos-1);
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for (size_t i = 0; i < winning_numbers_len; ++i) {
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if (n != winning_numbers[i])
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continue;
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points = (points == 0) ? 1 : points * 2;
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break;
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}
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if (*n_pos == '\n')
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break;
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}
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@ -3,7 +3,6 @@
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#include <stdlib.h>
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#include <string.h>
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#include <stdint.h>
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#include <stdbool.h>
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#define STACK_SZ UINT8_MAX+1
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@ -42,24 +41,25 @@ int main(int argc, char **argv) {
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winning_numbers = (uint8_t *) calloc(winning_numbers_len, sizeof(uint8_t));
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}
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for (size_t i = 0, wl_pos = (size_t)colon_pos+4; i < winning_numbers_len; ++i, wl_pos += 3) {
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for (size_t i = 0, wl_pos = (size_t)colon_pos+4; i < winning_numbers_len; ++i, wl_pos += 3)
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winning_numbers[i] = parse_number((char *)(wl_pos-1));
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}
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uint64_t card_copies = 1 + stack[stack_pos++];
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total_copies += card_copies;
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size_t old_sp = stack_pos;
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stackpointer_t old_sp = stack_pos;
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for (char *n_pos = pipe_pos + 4;; n_pos += 3) {
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uint8_t n = parse_number(n_pos-1);
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for (size_t i = 0; i < winning_numbers_len; ++i) {
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if (n != winning_numbers[i])
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continue;
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stack[stack_pos++] += card_copies;
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break;
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}
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if (*n_pos == '\n')
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break;
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}
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