write a c program to add first 10 successive integer

/*write a c program to add first 10 successive integer*/

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

void main()

{
 int x,n,i,ans=1;
 clrscr();
 printf("enter value of x:");
 scanf("%d",&x);
 printf("enter value of n:");
 scanf("%d",&n);
 for(i=1;i<=n;i++)
 {
  ans=ans+x;
 }
 printf("ans:%d",ans);
 getch();
}

wap using recursive function to generatr n terms and print the sum of following series for N terms.. 1+4+9+16+25+36+......+n=sum

/*wap using recursive function to generatr n terms and print the sum of
following series for N terms.. 1+4+9+16+25+36+......+n=sum*/

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

int addition(int n);

void main()

{
 int n,sum;
 clrscr();
 printf("enter value of n:");
 scanf("%d",&n);
 sum=addition(n);
 printf("%d",sum);
 getch();
}

int addition(int n)

{
 int sum;

 if(n==1)
        { return(1);          }
 else
        {
   return(pow(n,2)+addition(n-1));        }
}

write a c program to n terms of the folllowing series 1,1,2,3,5,8,13.....

/*write a c program to n terms of the folllowing series
1,1,2,3,5,8,13.....*/

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

void main()
{
	int n,i,a=1,b=1,c=0;
	clrscr();

	printf("enter value of n:");
	scanf("%d",&n);

	printf("\nthe fibonacci series ");

	for(i=1;i<=n;i++)
	{
		a=b;
		b=c;
		c=a;
		c=a+b;

		printf("%d",c);

			if(i<n)
				printf(",");
			else
				printf("");
	}
	getch();
}

Wap to print Series : 1 11 111 1111.....

/*write a c program to n terms of the folllowing series
1,11,111,1111,.....*/

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

void main()

{
	int n,i,j;
	clrscr();
	printf("enter value of n:");
	scanf("%d",&n);
	printf("\nthe series ");
	for(i=1;i<=n;i++)
	{
		for(j=1;j<=i;j++)
		{
			printf("1");
		}
		if(i<n)
			printf(",");
		else
			printf("");
	}
	getch();
}