update

DEV.1.1/CM1/ex4.c

@@ -0,0 +1,13 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void){
+	int i,j;
+
+	for(i=1;i<=20;i++){
+		for(j=1;j<=i;j++){
+			printf(" %d ",(i+j)/2);
+		}
+	}
+
+}