diff --git a/20240823/十四届蓝桥比赛/数独填数.cpp b/20240823/十四届蓝桥比赛/数独填数.cpp
new file mode 100644
index 0000000..76b26b6
--- /dev/null
+++ b/20240823/十四届蓝桥比赛/数独填数.cpp
@@ -0,0 +1,7 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+
+int main(){
+    
+}
\ No newline at end of file
diff --git a/20240823/十四届蓝桥比赛/简单算术题.cpp b/20240823/十四届蓝桥比赛/简单算术题.cpp
new file mode 100644
index 0000000..f5e7364
--- /dev/null
+++ b/20240823/十四届蓝桥比赛/简单算术题.cpp
@@ -0,0 +1,34 @@
+#include<bits/stdc++.h>
+using namespace std;
+typedef long long ll;
+
+stack<ll> s;
+
+int main(){
+    int i;
+    cin>>i;
+    char f;
+    s.push(i);
+    while(cin>>f){
+        cin>>i;
+        if(f=='+'){
+            s.push(i);
+        }else if(f=='-'){
+            s.push(-i);
+        }else if(f=='*'){
+            int h = s.top();
+            s.pop();
+            s.push(h*i);
+        }else{
+            int h = s.top();
+            s.pop();
+            s.push(h/i);
+        }
+    }
+    int ans = 0;
+    while(s.empty()==false){
+        ans+=s.top();
+        s.pop();
+    }
+    cout<<ans<<endl;
+}
\ No newline at end of file
diff --git a/xmake.lua b/xmake.lua
index 8bf5b20..08ec4d7 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -12,4 +12,10 @@ target("lq148jz")
     add_files("20240823/十四届蓝桥比赛/八进制回文平方数.cpp")
 
 target("lq14zy")
-    add_files("20240823/十四届蓝桥比赛/主要成分.cpp")
\ No newline at end of file
+    add_files("20240823/十四届蓝桥比赛/主要成分.cpp")
+
+target("lq14jd")
+    add_files("20240823/十四届蓝桥比赛/简单算术题.cpp")
+
+target("lq14sd")
+    add_files("20240823/十四届蓝桥比赛/数独填数.cpp")
\ No newline at end of file