曼哈顿距离

  *
 ***
*****
 ***
  *

#include<iostream>
#include<cmath>
using namespace std;
int main(){
	int n;
	cin>>n;
	int x=n/2,y=n/2;
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			if(abs(x-i)+abs(y-j)<=n/2){
				cout<<"*";
			}
			else{
				cout<<" "; 
			}
		}
		cout<<endl;
	}
	return 0;
}