C Program To Find The Result of 1-2+3-4+5-6+..Up To 10

/* C Program To Find The Result of 1-2+3-4+5-6+..Up To 10*/

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 #include<stdio.h>  
 #include<conio.h>  
 void main()  
 {  
   int i=0,sum=0;  
   clrscr();  
   for(i=1;i<=10;i++)  
   {  
     if(i%2==0)  
       sum=sum-i;  
     else  
       sum=sum+i;  
   }  
   printf("The sum of given series is: %d",sum);  
   getch();  
 }