Difference Of Squares
概要
初期コード
pub fn square_of_sum(n: u32) -> u32 { todo!("square of sum of 1...{n}")}
pub fn sum_of_squares(n: u32) -> u32 { todo!("sum of squares of 1...{n}")}
pub fn difference(n: u32) -> u32 { todo!("difference between square of sum of 1...{n} and sum of squares of 1...{n}")}