AoC2024/3/main.c

35 lines
583 B
C

#include <stdlib.h>
#include <stdio.h>
#define LINES 1000
int parse_numbers(char *mulString, int *a, int *b)
{
int i = 4;
while (mulString[i] >= '0' && mulString[i] <= '9') {
*a = *a * 10 + mulString[i] - '0';
i++;
}
i++;
while (mulString[i] >= '0' && mulString[i] <= '9') {
*b = *b * 10 + mulString[i] - '0';
i++;
}
return 1;
}
int main()
{
int sum = 0;
char mulString[32];
FILE *input;
input = fopen("./inputDemo", "r");
int a = 0;
int b = 0;
while (fscanf(input, "%d,%d", &a, &b)) {
sum += a * b;
}
printf("%d, %d\n", a, b);
printf("%d\n", sum);
}