Sample C Program To Print Sum Of Series 1 + 3 + 5 + …. N.

#include <stdio.h>
#include <conio.h>
void main()
{

int n, i, sum = 0;
clrscr();

printf(" Enter any number: " );
scanf(" %d ", &n);

for(i = 1; i<n; i = i + 2 )
{
printf(" %d + ", i);
sum = sum + i;
}
printf(" %d ", n);
printf(" \nSum = %d ", sum + n );
getch();

}

OUTPUT:

Enter any number: 9
1 + 3 + 5 + 7 + 9
Sum = 25

Sample C Program To Print A Star Pyramid.

#include <stdio.h>
#include <conio.h>
void 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 ");
    }
getch();
return 0;

}

OUTPUT:

Enter the number of rows in pyramid of stars you wish to see 5
*
***
*****
*******
*********


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