1 files changed, 53 insertions, 0 deletions
diff --git a/2a.c b/2a.c
new file mode 100644
index 0000000..180d72a
--- /dev/null
+++ b/2a.c
@@ -0,0 +1,53 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+int main(void)
+{
+    char buff[80];
+    int depth = 0;
+    int aim = 0;
+    int horiz = 0;
+
+    while(fgets(buff, sizeof buff, stdin))
+    {
+        char *tok[2] = {0};
+
+        tok[0] = strtok(buff," ");
+
+        if (tok[0]) tok[1] = strtok(NULL, " ");
+
+        if (tok[0] && tok[1])
+        {
+            int i = atoi(tok[1]);
+
+            if(strcmp(tok[0], "forward") == 0)
+            {
+                horiz += i;
+
+                depth += i * aim;
+            }
+
+            if(strcmp(tok[0], "down") == 0)
+            {
+                aim += i;
+            }
+
+            if(strcmp(tok[0], "up") == 0)
+            {
+                aim -= i;
+            }
+        }
+        else
+        {
+            printf("Bad input");
+            exit(1);
+        }
+    }
+
+    printf("depth=%d\n", depth);
+    printf("horiz=%d\n", horiz);
+    printf("product=%d\n", depth*horiz);
+
+    return 0;
+}