diff --git a/src/skomb.c b/src/skomb.c
index 63e3f1b..46dfba6 100644
--- a/src/skomb.c
+++ b/src/skomb.c
@@ -44,7 +44,7 @@ int main(int argc, char **argv){
       case 2:
         if (number >= 3 && number <= 17){
           pair *pairs = malloc(sizeof(pair) * 4);
-          int len = perm2(number, not_allowed, not_allowed_len, pairs);
+          int len = skomb2(number, not_allowed, not_allowed_len, pairs);
           printf("%d:\n", number);
           for (int i = 0; i < len; i++){
             printf("\t%d + %d\n", pairs[i].x, pairs[i].y);
@@ -59,7 +59,7 @@ int main(int argc, char **argv){
       case 3:
         if (number >= 6 && number <= 24){
           trio *trios = malloc(sizeof(trio) * 9);
-          int len = perm3(number, not_allowed, not_allowed_len, trios);
+          int len = skomb3(number, not_allowed, not_allowed_len, trios);
           printf("%d:\n", number);
           for (int i = 0; i < len; i++){
             printf("\t%d + %d + %d\n", trios[i].x, trios[i].y, trios[i].z);
@@ -74,7 +74,7 @@ int main(int argc, char **argv){
       case 4:
         if (number >= 10 && number <= 30){
           quartet *quartets = malloc(sizeof(quartet) * 12);
-          int len = perm4(number, not_allowed, not_allowed_len, quartets);
+          int len = skomb4(number, not_allowed, not_allowed_len, quartets);
           printf("%d:\n", number);
           for (int i = 0; i < len; i++){
             printf("\t%d + %d + %d + %d\n", quartets[i].x, quartets[i].y, quartets[i].z, quartets[i].w);
@@ -89,7 +89,7 @@ int main(int argc, char **argv){
       case 5:
         if (number >= 15 && number <= 35){
           quintet *quintets = malloc(sizeof(quintet) * 12);
-          int len = perm5(number, not_allowed, not_allowed_len, quintets);
+          int len = skomb5(number, not_allowed, not_allowed_len, quintets);
           printf("%d:\n", number);
           for (int i = 0; i < len; i++){
             printf("\t%d + %d + %d + %d + %d\n", quintets[i].x, quintets[i].y, quintets[i].z, quintets[i].w, quintets[i].v);
diff --git a/src/skomb.h b/src/skomb.h
index 795eb86..a506c51 100644
--- a/src/skomb.h
+++ b/src/skomb.h
@@ -42,12 +42,12 @@ typedef struct quintet{
   int v;
 } quintet;
 
-void readline(char *line, int len);
-int splitc_toi(char *line, int sep, int *dest);
-int perm2(int number, int *not_allowed, int* not_allowed_len, pair *pairs);
-int perm3(int number, int *not_allowed, int* not_allowed_len, trio *trios);
-int perm4(int number, int *not_allowed, int* not_allowed_len, quartet *quartets);
-int perm5(int number, int *not_allowed, int* not_allowed_len, quintet *quintets);
+void readline(char *line, int len); /* read len ammount of characters from stdin into line */
+int splitc_toi(char *line, int sep, int *dest); /* split a char array of numbers into an int array, separator used between numbes must be provided in the function call (e.g. commas, spaces, etc.) */
+int skomb2(int number, int *not_allowed, int* not_allowed_len, pair *pairs); /* stores valid combinations that sum up to number respecting an int array of not allowed numbers with it's length in a pair array */
+int skomb3(int number, int *not_allowed, int* not_allowed_len, trio *trios); /* same as above but with trios instead */
+int skomb4(int number, int *not_allowed, int* not_allowed_len, quartet *quartets); /* same as above but with quartets instead */
+int skomb5(int number, int *not_allowed, int* not_allowed_len, quintet *quintets); /* same as above but with quintets instead */
 
 void readline(char *line, int len){
   int i = 0;
@@ -77,7 +77,7 @@ int splitc_toi(char *line, int sep, int *dest){
   return j;
 }
 
-int perm2(int number, int* not_allowed, int* not_allowed_len, pair* dest){
+int skomb2(int number, int* not_allowed, int* not_allowed_len, pair* dest){
   int i, j, k;
   int skip;
   k = 0;
@@ -101,7 +101,7 @@ int perm2(int number, int* not_allowed, int* not_allowed_len, pair* dest){
   return k;
 }
 
-int perm3(int number, int *not_allowed, int *not_allowed_len, trio *trios){
+int skomb3(int number, int *not_allowed, int *not_allowed_len, trio *trios){
   int i, j, k;
   int skip, len;
   k = 0;
@@ -121,7 +121,7 @@ int perm3(int number, int *not_allowed, int *not_allowed_len, trio *trios){
         && i < number){
       not_allowed[*not_allowed_len] = i;
       (*not_allowed_len)++;
-      len = perm2(number-i, not_allowed, not_allowed_len, pairs);
+      len = skomb2(number-i, not_allowed, not_allowed_len, pairs);
       if (len > 0){
         for (j = 0; j < len; j++){
           if (i < pairs[j].x && i < pairs[j].y){
@@ -140,7 +140,7 @@ int perm3(int number, int *not_allowed, int *not_allowed_len, trio *trios){
   return k;
 }
 
-int perm4(int number, int *not_allowed, int *not_allowed_len, quartet *quartets){
+int skomb4(int number, int *not_allowed, int *not_allowed_len, quartet *quartets){
   int i, j, k;
   int skip, len;
   k = 0;
@@ -159,7 +159,7 @@ int perm4(int number, int *not_allowed, int *not_allowed_len, quartet *quartets)
     if (i != number && number - i < 25 && number - i > 5){
       not_allowed[*not_allowed_len] = i;
       (*not_allowed_len)++;
-      len = perm3(number - i, not_allowed, not_allowed_len, trios);
+      len = skomb3(number - i, not_allowed, not_allowed_len, trios);
       if (len > 0){
         for (j = 0; j < len; j++){
           if (i < trios[j].x && i < trios[j].y && i < trios[j].z){
@@ -179,7 +179,7 @@ int perm4(int number, int *not_allowed, int *not_allowed_len, quartet *quartets)
   return k;
 }
 
-int perm5(int number, int *not_allowed, int* not_allowed_len, quintet *quintets){
+int skomb5(int number, int *not_allowed, int* not_allowed_len, quintet *quintets){
   int i, j, k;
   int skip, len;
   k = 0;
@@ -198,7 +198,7 @@ int perm5(int number, int *not_allowed, int* not_allowed_len, quintet *quintets)
     if (i != number && number - i < 31 && number - i > 9){
       not_allowed[*not_allowed_len] = i;
       (*not_allowed_len)++;
-      len = perm4(number-i, not_allowed, not_allowed_len, quartets);
+      len = skomb4(number-i, not_allowed, not_allowed_len, quartets);
       if (len > 0){
         for (j = 0; j < len; j++){
           if (i < quartets[j].x && i < quartets[j].y && i < quartets[j].z && i < quartets[j].w){