题解

print("*****")
print(" ****")
print("  ***")
print("   **")
print("    *")
print("   **")
print("  ***")
print(" ****")
print("*****")

#include<iostream>
using namespace std;
int main(){
    cout<<"*****"<<endl;
    cout<<" ****"<<endl;
    cout<<"  ***"<<endl;
    cout<<"   **"<<endl;
    cout<<"    *"<<endl;
    cout<<"   **"<<endl;
    cout<<"  ***"<<endl;
    cout<<" ****"<<endl;
    cout<<"*****";
    return 0;
}