3 files changed, 7 insertions, 3 deletions
diff --git a/5/part1.c b/5/part1.c
index 5b45083..10cc36c 100644
--- a/5/part1.c
+++ b/5/part1.c
@@ -76,5 +76,5 @@ int highest_seat_id(const char *filename)
 
 int main(int argc, char *argv[])
 {
-    printf("%i\n", highest_seat_id(argv[1]));
+    printf("%i\n", highest_seat_id(argv[argc - 1]));
 }
diff --git a/5/part2.c b/5/part2.c
index ac74224..21dbdc2 100644
--- a/5/part2.c
+++ b/5/part2.c
@@ -86,9 +86,11 @@ int missing_seat_id(const char *filename)
             return i;
         }
     }
+
+    return 0;
 }
 
 int main(int argc, char *argv[])
 {
-    printf("%i", missing_seat_id(argv[1]));
+    printf("%i", missing_seat_id(argv[argc - 1]));
 }
diff --git a/5/part2_fast.c b/5/part2_fast.c
index 330244e..df2a585 100644
--- a/5/part2_fast.c
+++ b/5/part2_fast.c
@@ -77,9 +77,11 @@ int missing_seat_id(const char *filename)
             return i;
         }
     }
+
+    return 0;
 }
 
 int main(int argc, char *argv[])
 {
-    printf("%i", missing_seat_id(argv[1]));
+    printf("%i", missing_seat_id(argv[argc - 1]));
 }