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feat: Day1_2

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s-prechtl 2024-12-01 07:59:59 +01:00
parent 04e8802dac
commit c871af9701
1 changed files with 14 additions and 6 deletions
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18
2024/Day1/src/main.c
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@ -17,6 +17,7 @@ int main() {
int *first_numbers = malloc(lines * sizeof(int)); int *first_numbers = malloc(lines * sizeof(int));
int *second_numbers = malloc(lines * sizeof(int)); int *second_numbers = malloc(lines * sizeof(int));
int current_position = 0; int current_position = 0;
int count = 0;
int sum = 0; int sum = 0;
file = fopen(filename, "r"); file = fopen(filename, "r");
@ -34,9 +35,9 @@ int main() {
current_number_string[strlen(current_number_string) - 1] = '\0'; current_number_string[strlen(current_number_string) - 1] = '\0';
} }
if (is_first) { if (is_first) {
first_numbers[current_position] = atoi(current_number_string); first_numbers[current_position] = atoi(current_number_string);
} else { } else {
second_numbers[current_position] = atoi(current_number_string); second_numbers[current_position] = atoi(current_number_string);
} }
is_first ^= 1; is_first ^= 1;
if (line) { if (line) {
@ -49,8 +50,15 @@ int main() {
qsort(second_numbers, lines, sizeof(int), compare_ints); qsort(second_numbers, lines, sizeof(int), compare_ints);
for (int i = 0; i < lines; i++) { for (int i = 0; i < lines; i++) {
int difference = abs(first_numbers[i] - second_numbers[i]); for (int j = 0; j < lines; j++) {
sum += difference; if (first_numbers[i] == second_numbers[j]) {
count++;
} else if (count != 0) {
sum += first_numbers[i] * count;
count = 0;
break;
}
}
} }
printf("%d\n", sum); printf("%d\n", sum);
@ -80,5 +88,5 @@ int count_lines(char *filename) {
} }
int compare_ints(const void *a, const void *b) { int compare_ints(const void *a, const void *b) {
return (*(int *)a - *(int *)b); return (*(int *)a - *(int *)b);
} }