一拳击碎的坤坤梦

#include<iostream>
using namespace std;
int main(){

int a,b,c=0,d=0,e;
cin>>a;
b=a-1;
while(b!=-1){
while(b!=c){
cout<<" ";
c=c+1;
}
while(((a-b)2-1)!=d){
cout<<"";
d=d+1;
}
cout<<endl;
b=b-1;
c=0;
d=0;
}
e=a;
b=b+1;
while(b<a){
while(e>1){
cout<<" ";
e=e-1;
}
cout<<"*"<<endl;
b=b+1;
e=a;
}

return 0;
}