diff --git a/src/11/19/P2943.cpp b/src/11/19/P2943.cpp
new file mode 100644
index 0000000..e35ee2d
--- /dev/null
+++ b/src/11/19/P2943.cpp
@@ -0,0 +1,32 @@
+#include <algorithm>
+#include <iostream>
+#include <istream>
+#include <vector>
+
+const int inf=1e9+7;
+int n,m;
+std::vector<int> a,dp,s;
+
+int main(){
+    std::iostream::sync_with_stdio(false);
+    std::cin.tie(nullptr);
+
+    std::cin>>n>>m;
+    a.resize(n+1);
+    dp.resize(n+1,inf);
+    s.resize(m+1);
+
+    for(int i=1;i<=n;i++)std::cin>>a[i];
+    dp[0]=0;
+    for(int i=1;i<=n;i++){
+        int size=0;
+        for(int j=i;j>=1&&size*size<=n;j--){
+            if(s[a[j]]!=i){
+                size++;
+                s[a[j]]=i;
+            }
+            dp[i]=std::min(dp[i],dp[j-1]+size*size);
+        }
+    }
+    std::cout<<dp[n]<<"\n";
+}
\ No newline at end of file