Write a program to find the sum of the even numbers upto the given range as well as sum of first 50 even numbers

Source Code

 #include<stdio.h>

 #include<conio.h>

 int main (int argc, char *argv[])

 {

   clrscr();

   int s=0,sr=0,n=0,i=0,c=0;

   printf("\n Enter the range:");

   scanf("%d",&n);

   while(c<=50)

   {

         if(i%2==0)

         {

       s+=i;

       c++;

         }

         i++;

   }

   printf("\n The sum of 50 even numbers is: %d",s);

   i=0;

   c=0;

   while(c<=n)

   {

         if(i%2==0)

         {

       sr+=i;

       c++;

         }

         i++;

   }

   printf("\n The sum of %d even numbers is: %d",n,sr);

   getch();

 }

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