1.9

The C Programming Language/1.9.c

@@ -0,0 +1,28 @@
+#include <stdio.h>
+
+#define NORMAL 0
+#define SPACEBARING 1
+
+main()
+{
+	int c;
+	int state = NORMAL;
+	while ((c = getchar()) != EOF)
+	{
+		if (state == NORMAL)
+		{
+			putchar(c);
+			if (c == ' ')
+				state = SPACEBARING;
+		}
+		
+		if (state == SPACEBARING)
+		{
+			if (c != ' ')
+			{
+				state = NORMAL;
+				putchar(c);
+			}
+		}
+	}
+}