--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/compare/tree/random.c	Mon Aug 13 04:35:04 2012 +0900
@@ -0,0 +1,21 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+int main(int argc, char *argv[])
+{
+	if (argc < 2) {
+		printf("usage: ./random num [seed]\n");
+		exit(0);
+	}
+	if (argc > 2) srand((unsigned int)argv[2]);
+
+	int n = atoi(argv[1]);
+	int i;
+	for (i=0; i<n; i++) {
+		printf("%d ",random()%100);
+	}
+	puts("");
+
+	return 0;
+}