Is this logic wrong? Q - Wap to add up all odd integers till 15. P.S - New to programming and this is my first language

Question

int i; int sum;
for (i = 1; i<=15; i+=2) {
cout<<i;
sum = sum + i
}
cout<<"The sum of odd integers are:" << sum;

Answer 1

All code is OK except for one thing, you declared variable 'sum' but didn't initialized it.

So 'sum' could have some garbage value like 1, -9, 15, etc (it can be any value).

So it's good practice to initialize variables at the time of their declaration.

Assign 0 to sum before loop
sum = 0;

Or initialize it when declaring
int sum = 0;

Other than that, everything is fine

Answer 2

Looks OK if you add a semicolon after the incrementation step. Did you run the code?

Answer 3

Yes I tried to run the code in dev c++ it showed errors. They solution had a different approach where they looped all the numbers till 15 naturally and then they used the if statement where used if (i%2! =0) as far I think the logic is the same just a different approach?