diff --git a/abc042/a.c b/abc042/a.c
index 528418d..5197995 100644
--- a/abc042/a.c
+++ b/abc042/a.c
@@ -1,21 +1,20 @@
 #include <stdio.h>
 #include <stdlib.h>
-#define ARRAY_SIZE	3
 
-int	compare_numbers(const void *number1, const void *number2);	
+int	cmp_num(const void *num1, const void *num2);	
 
 int	main(void)
 {
 	int	i;
-	int	array[ARRAY_SIZE];
+	int	array[3];
 
 	i = 0;
-	while (i < ARRAY_SIZE)
+	while (i < 3)
 	{
 		scanf("%d", &array[i]);
 		++i;
 	}
-	qsort(array, ARRAY_SIZE, sizeof(int), compare_numbers);
+	qsort(array, 3, sizeof(int), cmp_num);
 	if (array[0] == 5 && array[1] == 5 && array[2] == 7)
 	{
 		puts("YES");
@@ -26,13 +25,13 @@ int	main(void)
 	}
 }
 
-int	compare_numbers(const void *number1, const void *number2)
+int	cmp_num(const void *num1, const void *num2)
 {
-	if (*(int *)number1 > *(int *)number2)
+	if (*(int *)num1 > *(int *)num2)
 	{
 		return (1);
 	}
-	else if (*(int *)number1 < *(int *)number2)
+	else if (*(int *)num1 < *(int *)num2)
 	{
 		return (-1);
 	}