The document contains 3 C++ programs: 1) An inverted triangle program that prints a triangle with decreasing width using loops. 2) A triangle program that prints a triangle with spaces and stars using nested loops. 3) A program that takes 3 numbers as input, compares them, and prints the smallest number or indicates they are equal.

1. /*Inverted Triangle*/
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int w=6;
for(int g=0;g<9;g++)
{
cout<<"*";
}
cout<<"n";
for(int a=1;a<=3;a++)
{
for(int b=0;b<a;b++)
{
cout<<" ";
}
cout<<"*";
for(int c=1;c<w;c++)
{
cout<<" ";
}
cout<<"*"<<"n";
w=w-2;
}
for(int e=1;e<=1;e++)
{
for(int f=4;f>=e;f--)
{
cout<<" ";
}
cout<<"*";
}
getch();
}
/* Triangle */
#include<iostream.h>
#include<conio.h>
int main()
{
clrscr();
int i,j,sp,x=1;
for(i=1;i<=4;i++,x=x+2)
{
for(sp=1;sp<=4-i;sp++) cout<<" ";
for(j=1;j<=x;j++)
{
if(i>1&&i<4&&j>1&&j<x)
cout<<" ";
else

2. cout<<"*";
}
cout<<"n";
}
getch();
}
/*Take input of Three n.o if the are not Equal,then find the Smallest
n.o*/
#include<iostream.h>
#include<conio.h>
void main()
{
clrscr();
int a,b,c;
cout<<"Entr 1st n.o = ";
cin>>a;
cout<<"Entr 2nd n.o = ";
cin>>b;
cout<<"Entr 3rd n.o = ";
cin>>c;
if((a<b)&&(a<c))
cout<<"Smallest n.o is = "<<a;
else if((c<a) && (c<b))
{
cout<<"Smallest n.o is = "<<c;
}
else if((b<a) && (b<c))
{
cout<<"Smallest n.o is = "<<b;
}
else
{
cout<<"All n.o are Equal";
}
getch();
}