Discussion on: Project Euler #6 - Sum Square Difference

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Rust

fn get_sum_square_difference(end: usize) -> usize {
    let mut sum: usize = 0;
    let square_sum = (1..=end).fold(0usize, |fin, num| { sum += num; fin + num.pow(2) });

    sum.pow(2) - square_sum
}