This code output
/*input number example be:5 output: //123454321 223454322 333454333 444454444 555555554 444454444 333454333 223454322 123454321// */ #include <iostream> using namespace std; int main() { int i,j,k,n; cin>>n; for (i=1;i<=n;i++) { for(j=1;j<=n;j++){ if(j<=i) cout<<i; else cout<<j; } for(k=j-2;k>=1;k--){ if(k>=i) cout<<k; else cout<<i; } cout<<"\n"; } for (i=n-1;i>=1;i--) { for(j=1;j<=n;j++){ if(j<=i) cout<<i; else cout<<j; } for(k=n-1;k>=1;k--){ if(k<i) cout<<i; else cout<<k; } cout<<"\n"; } return 0; }