printf example written

ChangeLog

@@ -1,5 +1,7 @@
 2024-06-30  hwpplayer1  <hwpplayer1@debian>
 
+	* c-basic/printf.c: printf example
+
 	* c-basic/foo.c: Foo example
 
 	* c-basic/helloworld.c: hello world example

c-basic/printf.c

@@ -0,0 +1,12 @@
+#include <stdio.h>
+
+int main()
+{
+    int a = 10, b = 20;
+
+    printf("a = %d, b = %d\n", a, b); /* a = 10, b = 20 */
+    printf("a = %d, b = %d\n", b, a); /* a = 20, b = 10 */
+    printf("%d%d\n", a, b);           /* 1020 */
+
+    return 0;
+}