diff --git a/year4/semester2/CS4423/materials/CS4423-Week11-Part-1.pdf b/year4/semester2/CS4423/materials/CS4423-Week11-Part-1.pdf new file mode 100644 index 00000000..887b5db6 Binary files /dev/null and b/year4/semester2/CS4423/materials/CS4423-Week11-Part-1.pdf differ