Program for half pyramid of numbers

 Program for half pyramid of numbers 

#include<iostream>

using namespace std;

int main()

{

int i,j,n,m=0;

cout<<"enter how many rows of pyramid you want";

cin>>n;

for(i=n;i>=1;--i)

{

for(j=1;j<=i;++j)

{

cout<<j<<" ";

}

cout<<endl;

}

return 0;

}

Output:

enter how many rows of pyramid you want6

1 2 3 4 5 6

1 2 3 4 5

1 2 3 4

1 2 3

1 2

1

 Program for  inverted half pyramid of numbers 

#include<iostream>

using namespace std;

int main()

{

int i,j,n,m=0;

cout<<"enter how many rows of pyramid you want";

cin>>n;

for(i=n;i>=1;--i)

{

for(j=1;j<=i;++j)

{

cout<<j<<" ";

}

cout<<endl;

}

return 0;

}

output:

enter how many rows of pyramid you want6

1 2 3 4 5 6

1 2 3 4 5

1 2 3 4

1 2 3

1 2

1