2022/day10/main.c


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#include <stdio.h>
#include <stdlib.h>

int main()
{
    char *line = NULL;
    size_t len;
    int ops = 1;
    int x = 1;

    int signal = 0;

    while (getline(&line, &len, stdin) != -1)
    {
        if ((ops+20) % 40 == 0) {
            printf("%d %d\n", ops, x);
            signal += ops * x;
        }
        if (line[0] == 'a') {
            ops++;
            if ((ops+20) % 40 == 0) {
                printf("%d %d\n", ops, x);
                signal += ops * x;
            }
            int a = atoi(line+5);
            x += a;
            printf("%d\n", a);
        }
        ops++;
    }

    printf("%d\n", signal);
}