1 files changed, 28 insertions, 0 deletions
diff --git a/6.4/main.c b/6.4/main.c
new file mode 100644
index 0000000..c5a2255
--- /dev/null
+++ b/6.4/main.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <ctype.h>
+#include "word.h"
+#include "tree.h"
+
+#define MAXWORD		100
+#define NDISTINCTTREE	1000
+
+struct tnode *tlist[NDISTINCTTREE];
+
+int main(void)
+{
+	char word[MAXWORD];
+	struct tnode *root;
+	int nt;
+	
+	root = NULL;
+	while (getword(word, MAXWORD) != EOF)
+		if (isalpha(word[0]))
+			root = addtree(root, word);
+
+	nt = tlstore(root, tlist, NDISTINCTTREE);
+	tlsort(tlist, nt);
+	printtl(tlist, nt);
+	tfree(root);
+
+	return 0;
+}