part 2 day 2

day2.c

@@ -5,7 +5,7 @@
 #define INPUT "inputs/input-day2"
 
 int
-main()
+first()
 {
     static char buf[256];
     static char cmd[256];
@@ -33,5 +33,47 @@ main()
     printf("depth: %d hpos: %d\n", depth, hpos);
     printf("result: %d\n", hpos * depth);
 
+    return 0;
+}
+
+int
+second()
+{
+    static char buf[256];
+    static char cmd[256];
+    static int  operand;
+
+    int hpos = 0;
+    int depth = 0;
+    int aim = 0;
+
+    FILE *f = fopen(INPUT, "r");
+    
+    while(fgets(buf, 256, f)) {
+        sscanf(buf, "%s %d\n", cmd, &operand);
+
+        if(strcmp(cmd, "forward") == 0) {
+            hpos += operand;
+            depth += (aim * operand);
+        } else if(strcmp(cmd, "up") == 0) {
+            aim -= operand;
+        } else if(strcmp(cmd, "down") == 0) {
+            aim += operand;
+        }
+    }
+
+    fclose(f);
+
+    printf("aim: %d depth: %d hpos: %d\n", aim, depth, hpos);
+    printf("result: %d\n", hpos * depth);
+
+    return 0;
+}
+
+int
+main()
+{
+    first();
+    second();
     return 0;
 }