Move some functions to util

main.c

@@ -10,10 +10,6 @@
 
 void find_end(int, char *, char *, int **, int *);
 
-void apply_shift(int, int *, int);
-
-int sum_array(int *, int);
-
 void initialize();
 
 void distribute_text();
@@ -229,19 +225,3 @@ void collect_results(int *match_number, int *matches) {
             MPI_COMM_WORLD
     );
 }
-
-void apply_shift(int shift, int *array, int size) {
-    for (int i = 0; i < size; ++i) {
-        array[i] += shift;
-    }
-}
-
-int sum_array(int *array, int size) {
-    int sum = 0;
-    for (int i = 0; i < size; ++i) {
-        sum += array[i];
-    }
-
-    return sum;
-}
-

util.c

@@ -15,6 +15,20 @@ void print_array(int *array, int length) {
     printf("\n");
 }
 
+void apply_shift(int shift, int *array, int size) {
+    for (int i = 0; i < size; ++i) {
+        array[i] += shift;
+    }
+}
+
+int sum_array(int *array, int size) {
+    int sum = 0;
+    for (int i = 0; i < size; ++i) {
+        sum += array[i];
+    }
+
+    return sum;
+}
 
 char *read_file(char *filepath, int *len) {
     FILE *f = fopen(filepath, "r");

util.h

@@ -5,4 +5,8 @@ void print_array(int *, int);
 
 char *read_file(char *filepath, int *len);
 
+void apply_shift(int, int *, int);
+
+int sum_array(int *, int);
+
 #endif //KMP_UTIL_H