#include<bits/stdc++.h>
using namespace std;
int main()
{
int n;
cin>>n;
int t;
int num=2*n-3;
for(int i=1;i<=n;i++)
{
int j=1;
for( ;j<=i;j++)
{
cout<<j;
}
for(int k=1;k<=num;k++)
cout<<"\t";
num=num-2;
for(int l=j-1;l>=1;l–)
{
if(l==j–)
{
continue;
}
else
cout<<l;
}
cout<<endl;
}
return 0;
}
what is wrong?