DESIGNING TRIANGLES IN C++

Triangle Design in C++, basically involves loops.

first let's design say
⟹OUTPUT 

X X X X X

PROGRAM 

#include<iostream.h>
#include<conio.h>
void main()
{
 for(int i=1;i<=5;i++)
 cout<<"X"<<" ";
 getch();
}

⟹OUTPUT 

X 
X X 
X X X
X X X X
X X X X X

PROGRAM 

#include<iostream.h>
#include<conio.h>
void main()
{
 for(int i=1;i<=5;i++){
 cout<<"\n";
 for(int j=1;j<=i;j++)
 cout<<"X"<<" ";
 }
 getch();
}

⟹OUTPUT 

X X X X X
X X X X
X X X
X X 
X

PROGRAM 

#include<iostream.h>
#include<conio.h>
void main()
{
 for(int i=1;i<=5;i++){
 cout<<"\n";
 for(int j=5;j>=i;j--)
 cout<<"X"<<" ";
 }
 getch();
}