蓝桥杯青少赛入门c++

img
样例输入1
2
样例输出1


#include <iostream>
using namespace std;
int main()
{
    int n;
    cin>>n;
    int t=2*n-1;
    for(int i=1;i<n;i++){
        for(int j=1;j<=i-1;j++) cout<<" ";
        for(int j=1;j<=t;j++){
            if(j==1||j==t) cout<<"*";
            else cout<<" ";
        }
        t-=2;
        cout<<endl;
    }
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++)
            if(j==n)cout<<"*";
            else cout<<" ";
        cout<<endl;
    }
    return 0;
}