I'm trying to make function that generates prime from range [n, 3n] but it's not working and I don't know why..

Question

https://code.sololearn.com/cBx73Gudr3j3/?ref=app

Answer 1

Indexing problem perhaps is the first thing you need to address. You see, you created a boolean array <S> with <n> + 1 elements.

cin >> n;
S = new bool[n + 1];

Then here comes the problem, you iterate the array starting from index <n> up to 3 * <n>

for(i = n; i <= 3 * n; i++) S[i] = true;

But the array only have <n> + 1 elements reserved, An attempt to iterate the array outside its boundary crashed the code.