diff --git a/MCA算法突击课/第03期/ppt/key/第03节.key b/MCA算法突击课/第03期/ppt/key/第03节.key
new file mode 100644
index 0000000..c37f4e5
Binary files /dev/null and b/MCA算法突击课/第03期/ppt/key/第03节.key differ
diff --git a/MCA算法突击课/第03期/ppt/powerpoint/第03节.pptx b/MCA算法突击课/第03期/ppt/powerpoint/第03节.pptx
new file mode 100644
index 0000000..b9f407f
Binary files /dev/null and b/MCA算法突击课/第03期/ppt/powerpoint/第03节.pptx differ