Pyramid Programs in C Languages:


Program 1:-

                              *
                            ***
                          *****
                        *******
                      *********


Solution:

#include <stdio.h>

int main()
{
   int row, c, n, temp;

   printf("Enter the number of rows in pyramid of stars you wish to see ");
   scanf("%d",&n);

   temp = n;

   for ( row = 1 ; row <= n ; row++ )
   {
      for ( c = 1 ; c < temp ; c++ )
         printf(" ");

      temp--;

      for ( c = 1 ; c <= 2*row - 1 ; c++ )
         printf("*");

      printf("\n");
   }

   return 0;
}


Output:-

-------------------------------------------------------------------------------------------------------------



Program 2:-


*
**
***
****
*****


Solution:--

#include <stdio.h>

int main()
{
    int n, c, k;

    printf("Enter number of rows\n");
    scanf("%d",&n);

    for ( c = 1 ; c <= n ; c++ )
    {
        for( k = 1 ; k <= c ; k++ )
            printf("*");

        printf("\n");
    }

    return 0;
}



------------------------------------------------------------------------------------------------------------





 A
B B
C C C
D D D D
E E E E E


Solution :--



#include<stdio.h>
int main()
{
    int i,j;
    char input,temp='A';
    printf("Enter uppercase character you want in triangle at last row: ");
    scanf("%c",&input);
    for(i=1;i<=(input-'A'+1);++i)
    {
        for(j=1;j<=i;++j)
           printf("%c",temp);
        ++temp;
        printf("\n");
    }
    return 0;
}
--------------------------------------------------------------------------------------------------------------



   *
      * * *
    * * * * *
  * * * * * * *
* * * * * * * * *



#include <stdio.h>
int main()
{
    int i,space,rows,k=0;
    printf("Enter the number of rows: ");
    scanf("%d",&rows);
    for(i=1;i<=rows;++i)
    {
        for(space=1;space<=rows-i;++space)
        {
           printf("  ");
        }
        while(k!=2*i-1)
        {
           printf("* ");
           ++k;
        }
        k=0;
        printf("\n");
    }
    return 0;
}



----------------------------------------------------------------------------------------------------------------



      1
      2 3 2
    3 4 5 4 3
  4 5 6 7 6 5 4
5 6 7 8 9 8 7 6 5



#include <stdio.h>
int main()
{
   int i,space,rows,k=0,count=0,count1=0;
   printf("Enter the number of rows: ");
   scanf("%d",&rows);
   for(i=1;i<=rows;++i)  
   {
       for(space=1;space<=rows-i;++space)
       {
          printf("  ");
          ++count;
        }
        while(k!=2*i-1)
        {
           if (count<=rows-1)
           {
             printf("%d ",(i+k));
             ++count;
           }
           else
           {
             ++count1;
              printf("%d ", (i+k-2*count1));
           }
           ++k;
        }
        count1=count=k=0;
        printf("\n");
    }
    return 0;
}


================================================================================


* * * * * * * * *
  * * * * * * *
    * * * * *
      * * *
        *
       
       
       
       
       
        #include<stdio.h>
int main()
{
    int rows,i,j,space;
    printf("Enter number of rows: ");
    scanf("%d",&rows);
    for(i=rows;i>=1;--i)
    {
        for(space=0;space<rows-i;++space)
           printf("  ");
        for(j=i;j<=2*i-1;++j)
          printf("* ");
        for(j=0;j<i-1;++j)
            printf("* ");
        printf("\n");
    }
    return 0;
}




=========================================================================



           1
         1   1
       1   2   1
     1   3   3    1
   1  4    6   4   1
 1  5   10   10  5   1

#include<stdio.h>
int main()
{
    int rows,coef=1,space,i,j;
    printf("Enter number of rows: ");
    scanf("%d",&rows);
    for(i=0;i<rows;i++)
    {
        for(space=1;space<=rows-i;space++)
        printf("  ");
        for(j=0;j<=i;j++)
        {
            if (j==0||i==0)
                coef=1;
            else
               coef=coef*(i-j+1)/j;
            printf("%4d",coef);
        }
        printf("\n");
    }
}


===========================================================================


1
2 3
4 5 6
7 8 9 10

#include<stdio.h>
int main()
{
    int rows,i,j,k=0;
    printf("Enter number of rows: ");
    scanf("%d",&rows);
    for(i=1;i<=rows;i++)
    {
        for(j=1;j<=i;++j)
          printf("%d ",k+j);
        ++k;
        printf("\n");
    }
}