#include<iostream>



using namespace std;

int main()

{

int i,j,k,n,ch;

do{

cout<<"\nMenu";

cout<<"\n1. Square pattern";

cout<<"\n2. Triangle pattern";

cout<<"\n3. Diaginal pattern";

cout<<"\n4. Reverse diaginal pattern";

cout<<"\n5. Quit";

cin>>ch;

switch(ch)

{

case 1: a1:

cout<<"\nEnter Size:";

cin>>n;

if(n>=1 && n<=9)

{

for(i=0;i<n;i++)

{

for(j=0;j<n;j++)

{ cout<<n; }

cout<<"\n";

}

}

else

{

cout<<"\nYour Size is Out of range!!";

goto a1;}

break;

case 2:a2:

cout<<"\nEnter Size:";

cin>>n;

if(n>=1 && n<=9)

{

for(i=0;i<n;i++)

{

for(j=0;j<=i;j++)

{ cout<<n; }

}

}

else

{

cout<<"\nYour Size is Out of range!!";

goto a2;}

break;

case 3:a3:

cout<<"\nEnter Size:";

cin>>n;

if(n>=1 && n<=9)

{

for(i=0;i<n;i++)

{

for(j=0;j<i;j++)

{

cout<<"*";

}

cout<<n;

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

{

cout<<"*";

}

cout<<"\n";

}

}

else

{

cout<<"\nYour Size is Out of range!!";

goto a3;}

break;

case 4:a4:

cout<<"\nEnter Size:";

cin>>n;

if(n>=1 && n<=9)

{

for(i=0;i<n;i++)

{

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

{

cout<<"*";

}

cout<<n;

for(j=0;j<i;j++)

{

cout<<"*";

}

cout<<"\n";

}

}

else

{

cout<<"\nYour Size is Out of range!!";

goto a4;}

break;

case 5:

return 0;

break;

default: return 0;

}

}while(ch>0 && ch< 5);



return 0;

}