move exercises, lecture examples, labs into subfolders

Exercises/C9/ex3.c

@@ -0,0 +1,14 @@
+#include <stdio.h>
+
+#define MAX_NAME_LEN 200
+
+int main() {
+	char name[MAX_NAME_LEN] = { 0 };
+
+	printf("Please enter your name: ");
+	scanf("%s", name);
+
+	while (1) {
+		printf("%s\n", name);
+	}
+}