update

20240901/6261/6261.cpp

@@ -0,0 +1,22 @@
+#include <ios>
+#include <iostream>
+
+void HLT(int n,char a,char b,char c){
+    if(n==1){
+        std::cout<<a<<"->"<<n<<"->"<<c<<"\n";
+        return;
+    }
+    HLT(n-1, a, c, b);
+    std::cout<<a<<"->"<<n<<"->"<<c<<"\n";
+    HLT(n-1, b, a,c);
+}
+
+int main(){
+    std::ios::sync_with_stdio(false),std::cin.tie(0),std::cout.tie(0);
+
+    int n;
+    char a,b,c;
+    std::cin>>n>>a>>c>>b;
+
+    HLT(n, a, b, c);
+}

xmake.lua

@@ -36,3 +36,6 @@ target("P4089")
 
 target("P2661")
     add_files("20240830/P2661/P2661.cpp")
+
+target("6261")
+    add_files("20240901/6261/6261.cpp")