Program to print number sequence in C++ (1)

/*  Program to print number sequence in C++


               1
              212
             32123
            4321234
           543212345               */


#include<iostream>
#include<stdio.h>
main()
{
        int i,s=5,j,k;
        for(i=1;i<=5;i++)
        {
            for(k=1;k<=s;k++)
                std::cout<<" ";
            s--;
            for(j=i;j>=1;j--)
                std::cout<<j;
            for(j=2;j<=i;j++)
                std::cout<<j;
            std::cout<<"\n";
        }
 }

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