added weekly exercises of isp-ws25

c/isp-ws25/weeklies/week01/w01ex01.c

@@ -0,0 +1,13 @@
+/*
+Exercise 01:
+Get familiar with coding.
+Create a program that displays "Hello World!"
+*/
+
+#include <stdio.h>
+
+int main()
+{
+    printf("Hello World!");
+    return 0;
+}