diff --git a/src/7/24/T633667s1.cpp b/src/7/24/T633667s1.cpp
new file mode 100644
index 0000000..42bbecf
--- /dev/null
+++ b/src/7/24/T633667s1.cpp
@@ -0,0 +1,40 @@
+#include <algorithm>
+#include <cstdint>
+#include <iostream>
+#include <istream>
+#include <limits>
+#include <vector>
+
+using ll = int64_t;
+
+double ans=0.0;
+ll m,n;
+std::vector<ll> v;
+
+int main(){
+    std::iostream::sync_with_stdio(false);
+    std::cin.tie(nullptr);
+    std::cout.tie(nullptr);
+    std::cin>>m>>n;
+    v.resize(n+1);
+    for(ll i=1;i<=m;i++){
+        v.assign(n+1,0);
+        for(ll j=1;j<=n;j++){
+            std::cin>>v[j];
+            v[j]+=v[j-1];
+        }
+        double nans=std::numeric_limits<double>::max();
+        for(ll j=2;j<v.size()-1;j++){
+            for(ll k=j;k<v.size()-1;k++){
+                ll len=n-(k-j+1);
+                ll sum=v[n]-(v[k]-v[j-1]);
+                nans=std::min(
+                    nans,
+                    double(sum)/double(len)
+                );
+            }
+        }
+        ans+=nans;
+    }
+    std::cout<<ans<<'\n';
+}
\ No newline at end of file
diff --git a/src/7/25/T639173.cpp b/src/7/25/T639173.cpp
new file mode 100644
index 0000000..294989d
--- /dev/null
+++ b/src/7/25/T639173.cpp
@@ -0,0 +1,3 @@
+int main(){
+    
+}
\ No newline at end of file