diff --git a/day7/P3372/P3372.cpp b/day7/P3372/P3372.cpp
new file mode 100644
index 0000000..0793c99
--- /dev/null
+++ b/day7/P3372/P3372.cpp
@@ -0,0 +1,9 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+const int MAX_N = 1e5+5;
+
+int main(){
+    int n,m;
+    
+}
\ No newline at end of file
diff --git a/day7/倍增与矩阵快速幂.pdf b/day7/倍增与矩阵快速幂.pdf
new file mode 100644
index 0000000..b0914d2
Binary files /dev/null and b/day7/倍增与矩阵快速幂.pdf differ
diff --git a/xmake.lua b/xmake.lua
index 70d8d2a..b416f05 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -63,4 +63,12 @@ target("segtree")
         local s=tostring(v)
         add_tests(s,{files="./day7/SegmentTree/*.cpp",runargs={s..".in",s..".out"},defines="OITEST"})
     end 
+
+target("P3372")
+    set_rundir("./day7/P3372")
+    add_files("./day7/P3372/*.cpp")
+    for v=1,1 do
+        local s=tostring(v)
+        add_tests(s,{files="./day7/P3372/*.cpp",runargs={s..".in",s..".ans",defines="OITEST"}})
+    end
     
\ No newline at end of file