Can someone analyze what's wrong?

Question

It should calculate L, but shows -0
int main()
{
int i, k, j;
double L = 0, sum;

cout << "Enter k = ";
cin >> k;

for (j = 1; j <= k; j++)
if (j != 2)
{
sum = 1;
for (i = k; i <= 12; i++)
sum += sqrt(i + 5) / (i - 1);
L *= (j - 5) /( j - 2) + sum;
}

cout << "Multiplication: " << L;

cin.get(); cin.get();

return 0;

}

Answer 1

Tripleks Cидик
From what it looks like, because you set L = 0 then the output will always be 0.
0 *= 10 = 0
0 *= 20 = 0
https://code.sololearn.com/cg45W0arZIBk/?ref=app

Try running code "discuss quest".

Using cout to follow the path can be really helpful solving errors.
After you try it, set
double L, sum;

giving L no value. Then test again.

It won't solve all the errors but you will notice a difference.
https://code.sololearn.com/ciSUvA8PGvwf/?ref=app

Answer 2

https://code.sololearn.com/cd30j0LEZ6Nl/?ref=app
I think this is the solution, thank you

Answer 3

Tripleks Cидик
If my answer helped a little I'm happy. But although my c++ skills are getting a little better I'm not very good with math, so I have no idea if this truly works or not. I'm not sure exactly what your code is meant to accomplish.

Sometimes it's good to try to describe the specific task you want to accomplish and then others can be more helpful, there are some very good and knowledgable people here.

And you didn't have to credit me in your code, you wrote it, I only noticed one possible little error.

Answer 4

It was a nested loop with multiplication and sum
I'm really thankful for your advice