containsDuplicate solution

Author: sungjinwi

contains-duplicate/sungjinwi.c

@@ -0,0 +1,21 @@
+#include <stdlib.h>
+#include <stdbool.h>
+
+int compare(void const *a, void const *b)
+{
+    return (*(int *)a - *(int *)b);
+}
+
+bool containsDuplicate(int* nums, int numsSize) {\
+	int	i;
+
+	i = 0;
+    qsort(nums, numsSize, sizeof(int), compare);
+	while (i < numsSize - 1)
+	{
+		if (nums[i] == nums[i + 1])
+			return (1);
+		i++;
+	}
+	return (0);
+}