Files
OI-source/history_source/ccf 入门篇/U4/4.4.3.cpp
2023-08-03 09:22:52 +08:00

26 lines
449 B
C++

#include<iostream>
using namespace std;
int main()
{
int n;
while(true)
{
cin>>n;
for(int i=0;i<n;i++)
{
for(int a=0;a<(n*2-1-i*2-1)/2;a++) cout<<" ";
for(int a=1;a<=i*2+1;a++) cout<<a;
for(int a=0;a<(n*2-1-i*2-1)/2;a++) cout<<" ";
cout<<endl;
}
for(int i=1;i<=n-1;i++)
{
for(int a=0;a<i;a++) cout<<" ";
for(int a=1;a<=2*n-1-2*i;a++) cout<<a;
for(int a=0;a<i;a++) cout<<" ";
cout<<endl;
}
cout<<endl;
}
}