1.
int sum_even(int n, int m)
{
int temp,i,sum=0;
if(n>m)
{
temp=n;
n=m;
m=temp;
}
if(n%2==0)
{
for(i=n; i<=m; i=i+2)
{
sum=sum+i;
}
}
else
{
for(i=n+1; i<=m; i=i+2)
{
sum=sum+i;
}
}
return sum;
}
2.
Are u suggesting that u may use if-else condition? ........or else Are u insisting us not to use if-else condition?.....
The word "may" in ur sentence gets a doubt that whether we should use if-else or not