Any ways to simplify this c++ code?

Question

#include<iostream>
using namespace std;
int main()
{
int n(1),r;

for(int i=1;i<=5;i++)
{
if(i<=3)
{while(n<=i*i)
{
cout<<n<<" ";
n+=i;
}
n=i+1;
}
else
{n=6-i;
while(n<=(6-i)*(6-i))
{
cout<<n<<" ";
n+=(6-i);

}
n=6-i;
n--;
}
cout<<endl;
}
return 0;
}
This gives output
1
2 4
3 6 9
2 4
1

Answer 1

There are probably many ways to produce this type of output. Here is my solution.

Hopefully you find this helpful.

https://code.sololearn.com/cII4df6Wu0Pb/?ref=app

Answer 2

thank u very much sir its very helpful.

Answer 3

This is another approach that has a mathematical bent. It computes a triangle wave using the abs() function.
https://code.sololearn.com/cVn2VOS92ZGh/?ref=app