diff --git a/c/resistor-color-duo/src/resistor_color_duo.c b/c/resistor-color-duo/src/resistor_color_duo.c
index 7bed2be..73314ea 100644
--- a/c/resistor-color-duo/src/resistor_color_duo.c
+++ b/c/resistor-color-duo/src/resistor_color_duo.c
@@ -4,10 +4,9 @@
 #include <stdlib.h>
 #endif
 
-resistor_band_t color_code(resistor_band_t *colors)
+resistor_band_t color_code(resistor_band_t colors[static 2])
 {
     resistor_band_t c1=*colors, c2=*(colors+1);
-
     return c1>=BLACK && c1<=WHITE && c2>=BLACK && c2<=WHITE? c1*10+c2: ERROR;
 }
 
@@ -19,7 +18,7 @@ int main(int ac, char **av)
 
     for (; arg<ac-1; ++arg, ++arg) {
         *i=atoi(av[arg]);
-        *(i+1)=atoi(av[arg+1]);
+        //*(i+1)=atoi(av[arg+1]);
         printf("color(%d, %d)=%d\n", i[0], i[1], color_code(i));
     }
 }
diff --git a/c/resistor-color-duo/src/resistor_color_duo.h b/c/resistor-color-duo/src/resistor_color_duo.h
index 188dbd6..3ea25a5 100644
--- a/c/resistor-color-duo/src/resistor_color_duo.h
+++ b/c/resistor-color-duo/src/resistor_color_duo.h
@@ -15,7 +15,7 @@ typedef enum {
     ERROR=-1,
 } resistor_band_t;
 
-extern resistor_band_t color_code(resistor_band_t *);
+extern resistor_band_t color_code(resistor_band_t [static 2]);
 
 #ifdef TESTALL
 #undef  TEST_IGNORE
diff --git a/c/two-bucket/main.c b/c/two-bucket/main.c
index be3c1a9..1a71549 100644
--- a/c/two-bucket/main.c
+++ b/c/two-bucket/main.c
@@ -20,7 +20,7 @@ int main(int ac, char **av)
         res = measure(b1, b2, goal, start);
         printf("   pos=%d count=%d goal=%d liters=%d\n",
                res.possible, res.move_count, res.goal_bucket,
-               ##res.other_bucket_liters);
+               res.other_bucket_liters);
     }
 }
 #endif
diff --git a/c/two-bucket/two_bucket.c b/c/two-bucket/two_bucket.c
index fb07119..cb13bfd 100644
--- a/c/two-bucket/two_bucket.c
+++ b/c/two-bucket/two_bucket.c
@@ -1,5 +1,4 @@
 #include "two_bucket.h"
-#include <stdio.h>
 #include <stdlib.h>
 
 /* We will choose to use a board of (X,Y) squares, with the sizes of the 2
diff --git a/c/two-bucket/two_bucket.h b/c/two-bucket/two_bucket.h
index fca0cfd..8d31866 100644
--- a/c/two-bucket/two_bucket.h
+++ b/c/two-bucket/two_bucket.h
@@ -22,6 +22,6 @@ bucket_result_t measure(bucket_liters_t bucket_1_size,
                         bucket_liters_t goal_volume,
                         bucket_id_t start_bucket);
 
-#include "br-common.h"
-
 #endif  /* TWO_BUCKETS_H */
+
+#include "br-common.h"
diff --git a/c/word-count/src/word_count.c b/c/word-count/src/word_count.c
index f30e99b..45c9cb5 100644
--- a/c/word-count/src/word_count.c
+++ b/c/word-count/src/word_count.c
@@ -18,10 +18,10 @@
  * The following will return INVALID_WORD:
  *   P2P
  *   0xFF
- *   A'2
+ *   A''B
  * The following will return 2 numbers/words:
  *   1'2
- *   A''B
+ *   A'2
  */
 
 /* get next word in string