Implementation of exercise 1-9: copying and printing input text to output, removing redundant spaces.

KNR C/ex1_9.c

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