chore: initial commit

main.c

@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "main.h"
+
+int main(int argc, char **argv) {
+    if(argc <= 1) {
+        printf("Please launch with a day number argument!\n");
+        return -1;
+    }
+
+    int day = (int) strtol(argv[1], (char**) NULL, 10);
+    switch (day) {
+        case 1:
+            return day_1();
+        default:
+            printf("Unknown day: %i", day);
+    }
+
+    return 0;
+}