number-pattern.cpp

#include<iostream>
using namespace std;

int main()
{
    int n;
    cin>>n;

    for(int i=1;i<=n;i++){
        for(int j=1;j<=n-i;j++){
            cout<<" ";
        }
        for(int j=1;j<=i;j++){
            cout<<j<<" ";
        } 
        cout<<endl;
    }
    
    return 0;
}