LOWER TRIANGULAR MATRIX

Write a program to print lower triangular matrix in c++

#include<iostream.h>
#include<conio.h>
void main()
{   clrscr();
 int a[10][10],b[10][10],c[10][10];
 int i, j, n, m;
 int p,q;
 cout<<"enter no of rows of matrix\n";
 cin>>m;
 cout<<"enter no of colomns of matrix\n";
 cin>>n;
 cout<<"\n\nenter the elements of matrix\n";
  for(i=0;i<m;i++)
   {
    for(j=0;j<n;j++)
     {
      cout<<"a["<<i+1<<"]["<<j+1<<"]:= ";
      cin>>a[i][j];
     }
   }
  cout<<"\n\nmatrix u have entered is"<<endl;
  for(i=0;i<m;i++)
   {
    for(j=0;j<n;j++)
     {
      cout<<"\t"<<a[i][j];
     }
    cout<<endl;
   }
 cout<<"Lower tringular matrix is"<<endl;
  for(i=0;i<m;i++)
  {
   for(j=0;j<n;j++)
    {
     if(j<=i)
     {
      cout<<"\t"<<a[i][j];
     }
     else
     {
      cout<<"\t ";
     }
    }
    cout<<endl;
  }


getch();
}

Print Prime Number Pyramid

Q) Write a program to print the PRIME NUMBER PYRAMID.


Sol)

#include<stdio.h>
#include<conio.h>

int prime(int num) ;
void main()
{
     clrscr();
     int i,j ;
     int number=2;
     printf("c-programcodes.blogspot.in")
     for(i=0;i<5;i++)
        {
              printf("\n");
              for(j=0;j<=i;j++)
                 {
                      while(!prime(number)) ;
                         {
                             number++;
                          }
                       printf("%d\t", number++)}
          }
      getch();
}

int prime(int num)
{
        int i, flag ;
        for(i=2;i<num;i++)
           {
                if(num%i!=0)
                      flag=1;
                else
                  {
                       flag=0;
                       break ;
                   }
              }
         if(flag==1 || num==2)
                return(1) ;
         else
                return(0);
 }

                             ===OUTPUT===
c-programcodes.blogspot.in
2

3     5

7     11    13

17   19    23    29

31    37    41    47

STAR PATTERN3

Q)Write a Program to Print The Following Star Pattern in c++
    *
   * *
  * * *
 * * * *
* * * * *

Sol) 
#include<iostream.h>
#include<conio.h>

 void main()
{
    clrscr();
    int i,j,n,k;
    cout<<"Enter number of rows"<<endl;
    cin>>n;
    
    for(i=1;i<=n;i++)
          {
              for(j=n-1;j>=i;j--)
                {
                    cout<<" ";
                 }
             for(k=1;k<=i;k++)
                {
                   cout<<"*";
                }
            cout<<endl;
        }
    getch();
}

                                                    ===OUTPUT===
Enter number of rows
5
    *
   * *
  * * *
 * * * *
* * * * *

STAR PATTERN5

Q) Write a Program to Print The Following Star Pattern in c++

     *

   ***

  *****

 *******

*********

Sol)

#include<iostream.h>
#include<conio.h>
void main()
{
 clrscr();
 int i,j,n,k;
 cout<<"Enter number of rows"<<endl;
 cin>>n;
 for(i=1;i<=n;i++)
 {
  for(j=1;j<=n-i;j++)
  {
   cout<<" ";
  }
   for(k=1;k<=2*i-1;k++)
    {
     cout<<"*";
    }
    cout<<endl;
 }
 getch();
}

                                               ===OUTPUT===

STAR PATTERN1

Q) Write a Program to Print The Following Star Pattern in c++

      *

      **

      ***

      ****

      *****

Sol)

#include<iostream.h>

#include<conio.h>

void main()
{
  clrscr();
  int i,j,n;

   cout<<"Enter number of rows"<<endl;
  cin>>n;
 
  for(i=1;i<=n;i++)
     {
         for(j=1;j<=i;j++)
           {
               cout<<"*";
           }
        cout<<endl;
     }
 getch();
}

                                     ===OUTPUT===

STAR PATTERN4

Q.) Write a Program to Print The Following Star Pattern in c++

          *****

          ****

          ***

          **

          *

Sol) 

 #include<iostream.h>

#include<conio.h>

void main()

{

    clrscr();

    int i,j,n;

    cout<<"Enter number of rows"<<endl;

    cin>>n;

    for(i=n;i>=1;i--)

     {

         for(j=1;j<=i;j++)

             {

                  cout<<"*";

             }

        cout<<endl;

     }

   getch();

}

                                              =OUTPUT=

Enter number of rows 5

*****

****

***

**

*

PASCAL TRIANGLE USING C PROGRAM

Q.) Write a C program to print PASCAL Triangle without using array

                                                or

      Write a C program to print PASCAL Triangle using for loop.

Sol )

#include<stdio.h>

#include<conio.h>

long fact(int) ;

int main()

{

      int line,i,j ;

      printf("Enter the number of lines : ") ;

      scanf("%d",&line) ;

   

      for(i=0;i<line;i++)

          {

               for(j=0;j<line-i-1;j++)

                         printf("  ");

               for(j=0;j<=i;j++)

                         printf("%ld ",fact(i)/(fact(j))*fact(i-j))) ;

               printf("\n") ;

           }

       return 0;

}

long fact(int num)

{

          long f=1;

          int i=1;

          while(i<=num)

             {

                   f=f*i ;

                   i++ ;

              }

          return f;

}

                                :: SAMPLE OUTPUT ::

Enter the number of lines : 6

                           1

                       1       1

                     1    2    1

                  1    3    3   1

                1   4     6    4   1

              1  5  10    10   5  1

To print the FLOYD's TRIANGLE

Q.) Write a C-program to print Floyd's Triangle .

                               or

        How to print Floyd's Triangle in C.

Sol)

#include<stdio.h>

#include<conio.h>

int main()

{

   int i,j,r,k=1 ;

   

   printf("Enter the range : ") ;

   scanf("%d",&r) ;

   

   printf("FLOYD's TRIANGLE \n\n") ;

   for(i=1;i<=r;i++)

        {

            for(j=1;j<=i;j++,k++)

                       printf("%d",k) ;

             printf("\n") ;

         }

    return 0 ;

}  

Number Pyramid 7

Q) Write a program to generate a following number structure:

54321

54321

54321

54321

54321

Sol )

#include<stdio.h>

#include<conio.h>

int main( )
{
 int num, r, c ;

printf("Enter the loop repeat number(rows):: ") ;

scanf("%d",&num);
for(r=1; num>=r; r++)
    {
          for(c=5; c>=1; c--)
                 printf("%d",c) ;
          printf("\n") ;
     }

return 0 ;

}

Number Pyramid 6

Q.) Write a program to generate a following number structure :

12345

12345

12345

12345

12345

Sol)

#include<stdio.h>

#include<conio.h>

int main( )
{

int num, r, c ;
printf("Enter loop repeat number(rows)::") ;

scanf("%d",&num) ;
for(r=1; num>=r; r++)
  {
    for(c=1; c<=num; c++)
        printf("%d",c) ;
    printf("\n") ;
  }

return 0 ;

}

Number Pyramid 5

Q.) Write a program to generate a following triangle :-

    #

    ##

    # # #

    # # # # 

    # # # # #

Sol)

#include<stdio.h>

#include<conio.h> 

int main( )

{

int num, r, c;

printf("Enter loop repeat number(rows): " );

scanf("%d", &num) ;

for (r=1; num>=r; r++)

 { 

      for(c=1; c<=r; c++)

               printf("#") ;

      printf("\n") ;    

}

return 0 ;

}

Number pyramid 4

Q) Write a PROGRAM to generate the following triangle :-

                                            # # # # #
                                               # # # #
                                                  # # #
                                                     # #
                                                        #

Sol)

 #include<stdio.h>

#include<conio.h>

int main( )

{

int num, r=1, c, sp ;

printf(" Enter loop repeat number(rows): ") ;

scanf("%d",&num);

for( ; num>=1;num--,r++)

{

   for(sp=r; sp>1; sp--)

        printf(" ");

   for(c=1; c<=num; c++)

        printf("#") ;

   printf("\n");

}

return 0;

}

Number pyramid 3

Q) Write a program to generate a following structure:

@@@@@

@@@@@

@@@@@

@@@@@

@@@@@

Sol)

#include<stdio.h>

#include<conio.h>

int main( )

{

int num, r, c;

printf(" Enter loop repeat number(rows): ");

scanf("%d", &num);

for(r=1; num>=r; r++)

{

    for(c=1; c<=num; c++)

          printf("@") ;

printf("\n") ;

}

return 0;

}

Number pyramid 2

Q) Write a C program to print the following :-

1

2 3

4 5 6

7 8 9 1

2 3 4 5 6

Sol)

#include<stdio.h>

void pyramid(int );    //prototype

int main( )

{

int num;

printf(" Enter the number of rows : ") ;

pyramid(num) ;     // Call

return 0;

}

void pyramid(int n  )    //definition

{

int r,c,x=1,y=1;

for(r=1;r<=n; r++)

   {   

     for(c=1; c<=r; c++,x++)

      {

       if(x<=9)

           printf("%d", x);

      else

         {

           printf("%d", y);

           y++;

         }

      }

printf("\n");

   }

}

Number pyramid 1

 Q.) Write a program to print the following number pyramid:

1

123

12345

1234567      

Sol)

#include<stdio.h>

int main()

{ 

int num, r, c, p=1;

printf("Enter the number of rows: ");

scanf("%d", &num) ;

for(r=1; r<=num; r++,p=p+2)

{

   for(c=1; c<=p; c++)

      {

        printf("%d",c) ;

       }

   printf("\n") ;

}

return 0 ;

}