الأجوبة
/*Write a program in C to display the n terms of even natural number and their sum*/
#include <stdio.h>
void main()
{
int i,n,sum=0;
printf("Input number of terms : ");
scanf("%d",&n);
printf("\nThe even numbers are :");
for(i=1;i<=n;i++)
{
printf("%d ",2*i);
sum+=2*i;
}
printf("\nThe Sum of even Natural Number upto %d terms : %d \n",n,sum);
}