made to greet you, when you input your name or use the arguments

hello_world.c

@@ -1,6 +1,10 @@
 #include <stdio.h>
 
-int main() {
-    printf("Hello, World!\n");
+int main(int argc, char* argv[]) {
+    if (argv[1] == NULL)
+    {
+        argv[1] = "World";
+    }
+    printf("Hello, %s!\n", argv[1]);
     return 0;
-}
+}

hello_world_scanf.c

@@ -0,0 +1,10 @@
+#include <stdio.h>
+#include <string.h>
+
+int main(int argc, char* argv[]) {
+    char name[64];
+    printf("Please enter your name: ");
+    scanf("%s", name);
+    printf("Hello, %s!\n", name);
+    return 0;
+}